A method and apparatus used in a node for wireless communication

Abstract

This application discloses a method and apparatus for use in a node for wireless communication. A first node receives a first signaling and a second signaling, the first signaling indicating that Q SSBs are transmitted, each of the Q SSBs corresponding to a Q SSB index, and each of the Q SSB indices is used to determine Q time-domain resources, where Q is a positive integer greater than 1; a first time-domain resource is determined based on at least a first integer, and candidates for the first time-domain resource form a first time-domain resource pool; downlink control signaling is monitored within the first time-domain resource. This application has good compatibility and improves the flexibility of resource allocation.

Description

Technical Field

[0001] This application relates to transmission methods and apparatus in wireless communication systems, and more particularly to methods and apparatus for transmitting wireless signals in wireless communication systems supporting cellular networks. Background Technology

[0002] In LTE (Long-term Evolution) systems, traditional network-controlled mobility includes cell-level mobility and beam-level mobility. Cell-level mobility relies on RRC (Radio Resource Control) signaling, while beam-level mobility does not involve RRC signaling. In 3GPP (the 3rd Generation Partnership Project) Release 16 and earlier, the SSB (SS / PBCH Block) index is used to determine the temporal resources occupied by the corresponding CSS (Common Search Space) set. Summary of the Invention

[0003] Associating a CSS set with a SSB of the serving cell can improve the efficiency of the UE (User Equipment) in performing blind decoding for the PDCCH (Physical Downlink Control Channel). However, this approach limits the flexibility of resource allocation and may require further enhancements in future evolutions of the cellular network.

[0004] To address the aforementioned issues, this application discloses a solution. It should be noted that although the above description uses cellular networks or CSS as examples, this application is also applicable to other scenarios such as sidelink transmission or USS (UE-specific Search Space), achieving similar technical effects to those in cellular network CSS. Furthermore, adopting a unified solution for different scenarios (including but not limited to cellular networks and sidelink transmission) helps reduce hardware complexity and cost. Where there is no conflict, the embodiments and features in the first node of this application can be applied to the second node, and vice versa. Where there is no conflict, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0005] As an example, the interpretation of the terminology in this application is based on the definition in the 3GPP specification protocol TS36 series.

[0006] As an example, the interpretation of terms in this application is based on the definitions in the 3GPP specification protocol TS38 series.

[0007] As an example, the interpretation of terms in this application is based on the definitions in the 3GPP specification protocol TS37 series.

[0008] As an example, the interpretation of terms in this application is based on the definitions in the IEEE (Institute of Electrical and Electronics Engineers) specification protocols.

[0009] This application discloses a method used in a first node for wireless communication, characterized by comprising:

[0010] Receive first signaling and second signaling, the first signaling indicating that Q SSBs are sent, the Q SSBs respectively corresponding to Q SSB indices, the Q SSB indices being used to determine Q time-domain resources, where Q is a positive integer greater than 1; determine a first time-domain resource based on at least a first integer, the candidates for the first time-domain resource forming a first time-domain resource pool; monitor downlink control signaling in the first time-domain resource;

[0011] Wherein, the first integer is one of the Q SSB indices, the first time-domain resource belongs to one time-domain resource in the first time-domain resource pool, and the first time-domain resource pool is one of the first candidate pool and the second candidate pool; the first candidate pool includes Q1 time-domain resources, and the second candidate pool includes Q2 time-domain resources; any one of the Q1 time-domain resources is one of the Q time-domain resources, and at least one of the Q1 time-domain resources does not belong to the Q2 time-domain resources; the Q2 time-domain resources are a proper subset of the Q time-domain resources; the second signaling is used to determine the Q2 time-domain resources; and the Q SSBs are associated with the first PCI (Physical Cell Identifier).

[0012] As an example, the Q SSB indices are used to determine the technical features of the Q time-domain resources, maintaining compatibility with existing systems; the technical features of the first time-domain resource pool being one of the first candidate pool and the second candidate pool provide flexibility in resource allocation; therefore, the above method achieves a balance between compatibility and flexibility.

[0013] Typically, each of the Q time-domain resources includes at least one PDCCH monitoring occasion.

[0014] Typically, each of the Q time-domain resources includes at least one multi-carrier symbol.

[0015] Typically, each of the Q time-domain resources includes at least one time slot.

[0016] As an example, the multicarrier symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0017] As an example, the multicarrier symbol is a DFT-S-OFDM (Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing) symbol.

[0018] Specifically, according to one aspect of this application, the second signaling indicates that Q2 SSB indices out of the Q SSB indices are respectively used to determine the Q2 time-domain resources.

[0019] As an example, the above method maintains better compatibility with existing systems.

[0020] Typically, the first time-domain resource is a time-domain resource in the first time-domain resource pool.

[0021] Typically, any one of the Q2 time-domain resources is one of the Q time-domain resources.

[0022] Typically, any two of the Q2 SSB indices are different.

[0023] Specifically, according to one aspect of this application, the SSB corresponding to the Q2 SSB indices is considered not to have been actually sent, at least for the first node.

[0024] As an example, the above method can provide greater scheduling flexibility.

[0025] As an example, the above method improves the efficiency of the UE in performing blind decoding.

[0026] As an example, the second signaling is used to indicate that the SSBs corresponding to the Q2 SSB indices have not actually been sent.

[0027] As one embodiment, the second signaling is used to instruct the abandonment of cell search using the SSBs corresponding to the Q2 SSB indices.

[0028] As an example, for a traditional UE, the SSBs corresponding to the Q2 SSB indices are considered to be actually transmitted.

[0029] Typically, the conventional UE cannot recognize the second signaling.

[0030] As an example, the conventional UE includes UEs that support at least 3GPP Release 15 and UEs that support 3GPP Release 16.

[0031] As an example, the conventional UE includes a UE of 3GPP Release 17.

[0032] Specifically, according to one aspect of this application, the Q2 time-domain resources include a corresponding time-domain resource; the second signaling is used to indicate the any time-domain resource from the corresponding time-domain resource.

[0033] As an example, the above method can achieve resource scheduling with finer granularity, further improving scheduling flexibility.

[0034] Specifically, according to one aspect of this application, the Q time-domain resources respectively accommodate Q CSS (Common search space) sets, and each of the Q CSS set sets includes at least one CSS set.

[0035] Specifically, according to one aspect of this application, it is characterized by comprising:

[0036] The first receiver receives a third signaling message, which is used to determine whether the first time-domain resource pool is a first candidate pool or a second candidate pool.

[0037] As an example, the above method allows for flexible configuration of the first time-domain resource pool, further improving scheduling flexibility.

[0038] Specifically, according to one aspect of this application, the first time-domain resource pool is characterized in that whether it is a first candidate pool or a second candidate pool is related to a first RNTI (Radio Network Temporary Identifier), and the downlink control signaling is identified by the first RNTI.

[0039] Specifically, according to one aspect of this application, the first time-domain resource pool being a first candidate pool or a second candidate pool is related to the CORESET (Control Resource SET) that accommodates the downlink control signaling.

[0040] As an example, either of the above two aspects reduces the signaling overhead or time delay used to configure the first time-domain resource pool, thereby improving transmission efficiency.

[0041] This application discloses a method used in a second node for wireless communication, characterized by comprising:

[0042] Send a first signaling and a second signaling, wherein the first signaling indicates that Q SSBs are sent, the Q SSBs correspond to Q SSB indices respectively, and the Q SSB indices are used to determine Q time-domain resources respectively, wherein Q is a positive integer greater than 1;

[0043] Wherein, at least a first integer is used to determine a first time-domain resource, and the candidates of the first time-domain resource form a first time-domain resource pool; the first time-domain resource is reserved for downlink control signaling; the first integer is one of the Q SSB indices, the first time-domain resource belongs to a time-domain resource in the first time-domain resource pool, and the first time-domain resource pool is one of a first candidate pool and a second candidate pool; the first candidate pool includes Q1 time-domain resources, and the second candidate pool includes Q2 time-domain resources; any one of the Q1 time-domain resources is one of the Q time-domain resources, and at least one of the Q1 time-domain resources does not belong to the Q2 time-domain resources; the Q2 time-domain resources are a proper subset of the Q time-domain resources; the second signaling is used to determine the Q2 time-domain resources; the Q SSBs are associated with a first PCI.

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

[0045] A first receiver receives a first signaling and a second signaling. The first signaling indicates that Q SSBs are transmitted, each of the Q SSBs corresponding to a Q SSB index. The Q SSB indices are used to determine Q time-domain resources, where Q is a positive integer greater than 1. A first time-domain resource is determined based on at least a first integer, and the candidates for the first time-domain resource form a first time-domain resource pool. Downlink control signaling is monitored in the first time-domain resource.

[0046] Wherein, the first integer is one of the Q SSB indices, the first time-domain resource belongs to one time-domain resource in the first time-domain resource pool, the first time-domain resource pool is one of the first candidate pool and the second candidate pool; the first candidate pool includes Q1 time-domain resources, and the second candidate pool includes Q2 time-domain resources; any one of the Q1 time-domain resources is one of the Q time-domain resources, and at least one of the Q1 time-domain resources does not belong to the Q2 time-domain resources; the Q2 time-domain resources are a proper subset of the Q time-domain resources; the second signaling is used to determine the Q2 time-domain resources; the Q SSBs are associated with the first PCI.

[0047] This application discloses a second node used for wireless communication, characterized by comprising:

[0048] The first transmitter sends a first signaling and a second signaling. The first signaling indicates that Q SSBs are sent. The Q SSBs correspond to Q SSB indices, and the Q SSB indices are used to determine Q time-domain resources. Q is a positive integer greater than 1.

[0049] Wherein, at least a first integer is used to determine a first time-domain resource, and the candidates of the first time-domain resource form a first time-domain resource pool; the first time-domain resource is reserved for downlink control signaling; the first integer is one of the Q SSB indices, the first time-domain resource belongs to a time-domain resource in the first time-domain resource pool, and the first time-domain resource pool is one of a first candidate pool and a second candidate pool; the first candidate pool includes Q1 time-domain resources, and the second candidate pool includes Q2 time-domain resources; any one of the Q1 time-domain resources is one of the Q time-domain resources, and at least one of the Q1 time-domain resources does not belong to the Q2 time-domain resources; the Q2 time-domain resources are a proper subset of the Q time-domain resources; the second signaling is used to determine the Q2 time-domain resources; the Q SSBs are associated with a first PCI.

[0050] As an example, compared with conventional solutions, this application has the following advantages:

[0051] It has good compatibility with existing systems;

[0052] It provides greater scheduling flexibility. Attached Figure Description

[0053] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0054] Figure 1A flowchart of monitoring downlink control signaling according to an embodiment of this application is shown;

[0055] Figure 2 A schematic diagram of a network architecture according to an embodiment of this application is shown;

[0056] Figure 3 A schematic diagram of an embodiment of a wireless protocol architecture for the user plane and control plane according to an embodiment of this application is shown;

[0057] Figure 4 A schematic diagram of a first communication device and a second communication device according to an embodiment of this application is shown;

[0058] Figure 5 A flowchart of a transmission according to an embodiment of this application is shown;

[0059] Figure 6 A schematic diagram illustrating communication between a first node and a first cell and a second cell according to an embodiment of this application is shown;

[0060] Figure 7 A schematic diagram of a first temporal resource pool according to an embodiment of this application is shown;

[0061] Figure 8 A schematic diagram showing the cell coverage status of a first node according to an embodiment of this application is illustrated;

[0062] Figure 9 A schematic diagram illustrating the transmission of return signaling between a first node and a second node according to an embodiment of this application is shown.

[0063] Figure 10 A structural block diagram of a processing apparatus for a first node according to an embodiment of this application is shown;

[0064] Figure 11 A structural block diagram of a processing apparatus for a second node according to an embodiment of this application is shown. Detailed Implementation

[0065] The technical solution of this application will be further described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0066] Example 1

[0067] Example 1 illustrates a flowchart of monitoring downlink control signaling according to an embodiment of this application, as shown in the attached diagram. Figure 1 As shown. In the appendix Figure 1 In the 100 shown, each box represents a step.

[0068] In step 101, the first node 100 receives a first signaling and a second signaling. The first signaling indicates that Q SSBs are sent, and the Q SSBs correspond to Q SSB indices. The Q SSB indices are used to determine Q time-domain resources, where Q is a positive integer greater than 1. In step 102, a first time-domain resource is determined based on at least a first integer, and the candidates for the first time-domain resource form a first time-domain resource pool. In step 103, downlink control signaling is monitored in the first time-domain resource.

[0069] In Example 1, the first integer is one of the Q SSB indices, the first time-domain resource belongs to one time-domain resource in the first time-domain resource pool, and the first time-domain resource pool is one of a first candidate pool and a second candidate pool; the first candidate pool includes Q1 time-domain resources, and the second candidate pool includes Q2 time-domain resources; any one of the Q1 time-domain resources is one of the Q time-domain resources, and at least one of the Q1 time-domain resources does not belong to the Q2 time-domain resources; the Q2 time-domain resources are a proper subset of the Q time-domain resources; the second signaling is used to determine the Q2 time-domain resources; and the Q SSBs are associated with a first PCI.

[0070] Typically, the first signaling is broadcast, and the downlink control signaling is physical layer signaling.

[0071] As an example, the first signaling is RRC signaling.

[0072] As an example, the first signaling is SIB (System Information Block) 1.

[0073] As an example, the first signaling is the ssb-PositionsInBurst field.

[0074] As an example, the second signaling is generated at the RRC (Radio Resource Control) layer.

[0075] As an example, the second signaling is a MAC (Medium Access Control) CE (Control Element).

[0076] As an example, the second signaling is a DCI (Downlink Control Information).

[0077] As a sub-implementation of the two embodiments described above, the second signaling indicates at least one TCI (Transmission Configuration Indicator) state.

[0078] As an example, the Q SSB indices are 1, 2, ..., Q.

[0079] As an example, the Q SSB indices are 0, 1, ..., Q-1.

[0080] As an example, the first signaling includes a bitmap, wherein Q bits in the bitmap respectively indicate that the Q SSBs are transmitted; the Q SSBs correspond to the Q SSB indices in sequence according to their positions in the Q bits.

[0081] Typically, each of the Q time-domain resources includes at least one PDCCH monitoring occasion.

[0082] Typically, the downlink control signaling is DCI.

[0083] As an example, Q2 is less than Q, and any one of the Q2 time-domain resources is one of the Q time-domain resources.

[0084] As a sub-implementation of the above embodiment, Q1 is less than Q, and any one of the Q1 time-domain resources is one of the Q time-domain resources.

[0085] As a sub-example of the above embodiment, any one of the Q1 time-domain resources does not belong to the Q2 time-domain resources.

[0086] As a sub-implementation of the above embodiment, the Q time-domain resources are composed of the Q1 time-domain resources and the Q2 time-domain resources.

[0087] As a sub-implementation of the above embodiment, the second signaling uses a bitmap to indicate the Q1 time-domain resources from the Q time-domain resources.

[0088] As a sub-implementation of the above embodiment, the second signaling includes Q bits, each of which indicates whether one of the Q time-domain resources belongs to the Q1 time-domain resources.

[0089] As an example, at least one of the Q2 time-domain resources is a proper subset of one of the Q time-domain resources.

[0090] As a sub-implementation of the above embodiments, the cell identified by the first PCI is not the serving cell of the first node, and the second PCI is used to identify a serving cell of the first node.

[0091] As a sub-example of the above embodiments, the cell identified by the first PCI is not configured with a ServCellIndex, and the second PCI is used to identify a serving cell of the first node.

[0092] As one embodiment of the two sub-implementations above, the TDD-UL-DL-ConfigCommon IE (Information Element) sent on the serving cell of the second PCI identifier is used to determine the Q1 time-domain resources.

[0093] The above-described sub-implementations can avoid interference from cross-links between cells and improve transmission efficiency.

[0094] As an example, any symbol configured as uplink in the TDD-UL-DL-ConfigCommonIE does not belong to the Q1 time-domain resources.

[0095] As an example, if any PDCCH monitoring opportunity in the Q time-domain resources overlaps with any symbol configured as uplink in the TDD-UL-DL-ConfigCommon IE, then the PDCCH monitoring opportunity does not belong to the Q1 time-domain resources.

[0096] The above method allows the first node to receive downlink control signaling through the cell identified by the second PCI, while maintaining the serving cell unchanged.

[0097] The above method allows the first node to receive downlink control signaling through the cell identified by the first PCI, while maintaining the serving cell unchanged, thus achieving inter-cell mobility at a lower protocol layer.

[0098] As a sub-implementation of the above embodiment, Q2 is equal to Q.

[0099] As a sub-implementation of the above embodiment, Q1 is equal to Q, and the Q1 time-domain resources are the Q time-domain resources.

[0100] As a sub-implementation of the above embodiment, at least one of the Q1 time-domain resources includes OFDM symbols that do not belong to the Q2 time-domain resources.

[0101] As a sub-implementation of the above embodiment, the second signaling uses a bitmap to indicate the Q1 time-domain resources from at least one of the Q time-domain resources.

[0102] As a sub-implementation of the above embodiment, the second signaling includes L bits, which respectively indicate whether the monitoring timing of L PDCCH in one of the Q time-domain resources belongs to one of the Q1 time-domain resources.

[0103] As a sub-implementation of the above embodiments, the second signaling indicates that at least one search space is associated with the first PCI, and the behavior monitoring downlink control signaling is executed in the at least one search space.

[0104] As one embodiment, the behavior monitoring downlink control signaling includes determining whether the downlink control signaling is detected based on CRC (Cyclic Redundancy Check).

[0105] As one embodiment, the behavior monitoring downlink control signaling includes determining whether the downlink control signaling has been sent based on CRC (Cyclic Redundancy Check).

[0106] As one embodiment, the behavior monitoring downlink control signaling includes determining whether the downlink control signaling is detected based on energy detection.

[0107] As one embodiment, the behavior monitoring downlink control signaling includes determining whether the downlink control signaling is detected based on the coherent detection of the DMRS (DeModulation Reference Signal).

[0108] As an example, the first time-domain resource is a time-domain resource in the first time-domain resource pool.

[0109] As an example, the first time-domain resource is part of a time-domain resource in the first time-domain resource pool.

[0110] Typically, the second signaling indicates the Q2 time-domain resources from the Q time-domain resources.

[0111] Typically, the candidates for the first time-domain resources constitute the first time-domain resource pool.

[0112] Typically, the first time-domain resource is determined from the first time-domain resource pool based on at least a first integer.

[0113] As an example, the cell with the first PCI identifier and the cell with the second PCI identifier are maintained by the same base station.

[0114] Example 2

[0115] Example 2 illustrates a schematic diagram of a network architecture according to an embodiment of this application, as shown in the attached diagram. Figure 2 As shown.

[0116] Appendix Figure 2 This describes the network architecture 200 for LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced), and future 5G systems. The network architecture 200 for LTE, LTE-A, and future 5G systems is referred to as EPS (Evolved Packet System) 200. The 5G NR or LTE network architecture 200 can be referred to as 5GS (5G System) / EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS / EPS 200 may include one or more UEs (User Equipment) 201, a UE 241 communicating with UE 201 via a sidelink, NG-RAN (Next Generation Radio Access Network) 202, 5GC (5G Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet services 230. The 5GS / EPS 200 can interconnect with other access networks, but these entities / interfaces are not shown for simplicity. (See attached...) Figure 2As shown, the 5GS / EPS200 provides packet-switched services; however, those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks providing circuit-switched services. The NG-RAN202 includes NR (New Radio) Node B (gNB) 203 and other gNBs 204. gNB 203 provides user and control plane protocol termination to UE 201. gNB 203 can be connected to other gNBs 204 via an Xn interface (e.g., backhaul). gNB 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), TRP (transmitter-receiver point), or some other suitable term. gNB 203 provides UE 201 with access to the 5GC / EPC210. Examples of UE201 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband physical network devices, machine-type communication devices, land vehicles, automobiles, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handheld device, user agent, mobile client, client, or any other suitable term. gNB203 connects to 5GC / EPC210 via the S1 / NG interface. 5GC / EPC210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF 214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway) / UPF 213. MME / AMF / SMF 211 is the control node that handles signaling between UE201 and 5GC / EPC210. ​​Generally, MME / AMF / SMF 211 provides bearer and connection management.All user IP (Internet Protocol) packets are transmitted through the S-GW / UPF212, which is itself connected to the P-GW / UPF213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF213 is connected to Internet service 230. Internet service 230 includes operator-compliant Internet Protocol services, specifically including the Internet, intranet, IMS (IP Multimedia Subsystem), and packet switching services.

[0117] As an example, the first node in this application includes the UE201.

[0118] As an example, the second node in this application includes the gNB203.

[0119] As an example, the third node in this application includes the gNB203.

[0120] As an example, both the cell with the first PCI identifier and the cell with the second PCI identifier in this application are maintained by the gNB203.

[0121] As an example, the wireless link between the UE201 and the gNB203 is a cellular link.

[0122] As an example, the sender of the first signaling and the second signaling includes the gNB203.

[0123] As an example, the sender of the downlink control signaling includes the gNB204.

[0124] As an example, the UE201 supports inter-cell mobility centered on L1 / L2.

[0125] As an example, the UE201 supports inter-cell multiple TRPs.

[0126] As one example, the gNB203 supports inter-cell mobility centered on L1 / L2.

[0127] As an example, the gNB203 supports multiple TRPs (Transmit / Receive Points) between cells.

[0128] As one example, the gNB203 supports full-duplex division.

[0129] Example 3

[0130] Example 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture for the user plane and control plane according to an embodiment of this application, as shown in the attached diagram. Figure 3 As shown.

[0131] Example 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture for a user plane and a control plane according to this application, as shown in the attached diagram. Figure 3 As shown. Figure 3 This is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300. Figure 3The radio protocol architecture of the control plane 300 between the first communication node device (UE, gNB, or RSU in V2X) and the second communication node device (gNB, UE, or RSU in V2X), or between two UEs, is illustrated using 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. Layer 1 will be referred to as PHY 301 in this document. Layer 2 (L2 layer) 305, above PHY 301, is responsible for the link between the first and second communication node devices, or between two UEs. Layer 2 305 includes the MAC (Medium Access Control) sublayer 302, the RLC (Radio Link Control) sublayer 303, and the 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. PDCP sublayer 304 also provides security through encrypted data packets and supports cross-cell mobility between second communication node devices and the first communication node device. RLC sublayer 303 provides upper layer data packet segmentation and reassembly, retransmission of lost data packets, and data packet reordering to compensate for out-of-order reception due to HARQ. MAC sublayer 302 provides multiplexing between the logical and transport channels. MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a cell between the first communication node devices. MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3) of the control plane 300 is responsible for acquiring radio resources (i.e., radio bearers) and configuring the lower layer using RRC signaling between the second and first communication node devices. The radio protocol architecture of user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). The radio protocol architecture for the first and second communication node devices in user plane 350 is largely the same as the corresponding layers and sublayers in control plane 300 for physical layer 351, PDCP sublayer 354 in L2 layer 355, RLC sublayer 353 in L2 layer 355 and MAC sublayer 352 in L2 layer 355. However, PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead.The L2 layer 355 in the user plane 350 also includes an SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS streams and data radio bearers (DRBs) to support service diversity. Although not illustrated, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) terminating at the P-GW on the network side and an application layer terminating at the other end of the connection (e.g., a remote UE, server, etc.).

[0132] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the first node in this application.

[0133] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the second node in this application.

[0134] As an example, the first signaling is generated in the RRC sublayer 306, and the downlink control signaling is generated in the PHY 301.

[0135] As an example, the second signaling is generated in the PHY sublayer 306.

[0136] As an example, the second signaling is generated in the MAC sublayer 302.

[0137] As an example, the second signaling is generated in the PHY301.

[0138] As an example, the third signaling is generated in the MAC sublayer 302.

[0139] As an example, the third signaling is generated in the PHY301.

[0140] Example 4

[0141] Example 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of this application, as shown in the attached diagram. Figure 4 As shown. (Attached) Figure 4 This is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

[0142] The first communication device 410 includes a controller / processor 475, a memory 476, a receiver processor 470, a transmitter processor 416, a multi-antenna receiver processor 472, a multi-antenna transmitter processor 471, a transmitter / receiver 418, and an antenna 420.

[0143] The second communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmitting processor 468, a receiving processor 456, a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, a transmitter / receiver 454, and an antenna 452.

[0144] In the transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, upper-layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements L2 layer functionality. In the L2 layer, 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 operation, 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). Transmit processor 416 performs encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 450, and 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-QAM). Multi-antenna transmit processor 471 performs digital spatial precoding on the encoded and modulated symbols, including codebook-based and non-codebook-based precoding, and beamforming processing, generating one or more parallel streams. Transmit processor 416 then maps each parallel stream to a subcarrier, multiplexes the modulated symbols with a reference signal (e.g., a pilot) in the time and / or frequency domains, and subsequently uses Inverse Fast Fourier Transform (IFFT) to generate a physical channel carrying the time-domain multicarrier symbol stream. Multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multi-antenna transmitter processor 471 into an radio frequency stream, which is then provided to different antennas 420.

[0145] In the transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream, which is then provided to the receiver processor 456. The receiver processor 456 and the multi-antenna receiver processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiver processor 458 performs receive analog precoding / beamforming operations on the baseband multicarrier symbol stream from the receiver 454. The receiver processor 456 uses a Fast Fourier Transform (FFT) to convert the baseband multicarrier symbol stream after the receive analog precoding / beamforming operations from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiver processor 456, where the reference signal is used for channel estimation, and the data signal is recovered in the multi-antenna receiver processor 458 after multi-antenna detection to recover any parallel stream destined for the second communication device 450. Symbols on each parallel stream are demodulated and recovered in the receive processor 456, generating soft decisions. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper-layer data and control signals transmitted over the physical channel by the first communication device 410. The upper-layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of Layer 2 (L2). The controller / processor 459 may be associated with a memory 460 storing program code and data. The memory 460 may be referred to as computer-readable media. In the DL (Layered Logic), the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transmission and logical channels to recover upper-layer packets from the core network. The upper-layer packets are then provided to all protocol layers above Layer 2. Various control signals may also be provided to Layer 3 (L3) for L3 processing. The controller / processor 459 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operation.

[0146] In the transmission from the second communication device 450 to the first communication device 410, at the second communication device 450, a data source 467 is used to provide upper-layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission functions 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 control plane. The controller / processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communication device 410. Transmit processor 468 performs modulation mapping and channel coding processing, while multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming processing. Subsequently, transmit processor 468 modulates the generated parallel stream into a multi-carrier / single-carrier symbol stream. After analog precoding / beamforming operations in multi-antenna transmit processor 457, the stream is provided to different antennas 452 via transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by multi-antenna transmit processor 457 into a radio frequency symbol stream before providing it to antenna 452.

[0147] In the transmission from the second communication device 450 to the first communication device 410, the function at the first communication device 410 is similar to the receiving function at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals into baseband signals, and provides the baseband signals to the multi-antenna receiving processor 472 and the receiving processor 470. The receiving processor 470 and the multi-antenna receiving processor 472 jointly implement the L1 layer functions. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 may be associated with a memory 476 that stores program code and data. The memory 476 may be referred to as computer-readable media. The controller / processor 475 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transmission and logical channels to recover upper-layer data packets from the second communication device 450. The upper-layer data packets from the controller / processor 475 may be provided to the core network. The controller / processor 475 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operation.

[0148] As one embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second communication device 450 means at least: receiving first signaling and second signaling; determining a first time-domain resource based on at least a first integer; and monitoring downlink control signaling in the first time-domain resource.

[0149] As one embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program that produces actions when executed by at least one processor, the actions including: receiving first signaling and second signaling; determining a first time-domain resource based on at least a first integer; and monitoring downlink control signaling in the first time-domain resource.

[0150] As one embodiment, the first communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The first communication device 410 is capable of transmitting at least: first signaling and second signaling.

[0151] As one embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program that generates actions when executed by at least one processor, the actions including: sending a first signaling and a second signaling.

[0152] As an example, the first node in this application includes the second communication device 450.

[0153] As an example, the second node in this application includes the first communication device 410.

[0154] As an example, at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the first signaling and the second signaling; at least one of {the antenna 420, the transmitter 418, the transmitting processor 416, the multi-antenna transmitting processor 471, the controller / processor 475, and the memory 476} is used to transmit the first signaling and the second signaling.

[0155] As an example, at least one of {the antenna 452, the receiver 454, the receiver processor 456, the multi-antenna receiver processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to determine a first time-domain resource based on at least a first integer.

[0156] As an example, at least one of {the antenna 452, the receiver 454, the receiver processor 456, the multi-antenna receiver processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to monitor downlink control signaling in the first time domain resource.

[0157] As an example, at least one of {the antenna 420, the transmitter 418, the transmitter processor 416, the multi-antenna transmitter processor 471, the controller / processor 475, and the memory 476} is used to transmit downlink control signaling in the first time domain resource.

[0158] Example 5

[0159] Example 5 illustrates a flowchart of wireless transmission according to an embodiment of this application, as shown in the attached diagram. Figure 5 As shown. In the appendix Figure 5 In the diagram, the steps in boxes F1 and F2 are optional.

[0160] For the first node U1, in step S100, a first signaling and a second signaling are received. The first signaling indicates that Q SSBs are sent, and the Q SSBs correspond to Q SSB indices. The Q SSB indices are used to determine Q time-domain resources, where Q is a positive integer greater than 1. In step S101, a third signaling is received, which is used to determine whether the first time-domain resource pool is a first candidate pool or a second candidate pool. In step S102, a first time-domain resource is determined based on at least a first integer, and the candidates for the first time-domain resource form the first time-domain resource pool. In step S103, downlink control signaling is monitored in the first time-domain resource.

[0161] For the second node U2, the first signaling and the second signaling are sent in step S200; the third signaling is sent in step S201; and the downlink control signaling is sent in step S202.

[0162] In Example 5, the first integer is one of the Q SSB indices, the first time-domain resource belongs to one time-domain resource in the first time-domain resource pool, and the first time-domain resource pool is one of the first candidate pool and the second candidate pool; the first candidate pool includes Q1 time-domain resources, and the second candidate pool includes Q2 time-domain resources; any one of the Q1 time-domain resources is one of the Q time-domain resources, and at least one of the Q1 time-domain resources does not belong to the Q2 time-domain resources; the Q2 time-domain resources are a proper subset of the Q time-domain resources; the second signaling is used to determine the Q2 time-domain resources; and the Q SSBs are associated with the first PCI.

[0163] Typically, the Q time-domain resources each contain Q sets of CSS (Common search space), and each of the Q sets of CSS includes at least one CSS set.

[0164] As an example, the first time-domain resource pool includes multiple time slices, which are indexed sequentially in chronological order. For any time slice, if the index of any time slice is equal to f (a first integer), the time slice belongs to the first time-domain resource; if the index of any time slice is not equal to f (a first integer), the time slice does not belong to the first time-domain resource. f (a first integer) is a function, and the input of f (a first integer) includes at least the first integer.

[0165] As an example, the indices of the plurality of time slices are 0, 1, 2, ... in sequence.

[0166] As an example, the indices of the plurality of time slices are 1, 2, ... in sequence.

[0167] As one embodiment, each of the plurality of time slices includes at least one multi-carrier symbol.

[0168] As an example, any two time slices among the plurality of time slices include the same number of multicarrier symbols.

[0169] As an example, any one of the multiple time slices is a PDCCH monitoring opportunity.

[0170] As an example, any one of the multiple time slices is a slot.

[0171] As an example, f (the first integer) is linear.

[0172] As an example, the output of f (the first integer) includes multiple values, and if the index of the first time slice is equal to any of the multiple values, the any time slice belongs to the first time domain resource.

[0173] As an example, the input to f (the first integer) also includes x, which is a positive integer from 0 to X-1, and X is configured by higher-level signaling.

[0174] As an example, the time slice is the PDCCH monitoring timing, and f (the first integer) is [x*Q + the first integer]; x = 0, 1, ..., X-1, and X is configurable.

[0175] As an example, the downlink control signaling is identified by P-RNTI (Paging RNTI), and the first time-domain resource pool belongs to a PO (Paging Occasion).

[0176] As a sub-example of the above embodiment, X is indicated by nrofPDCCH-MonitoringOccasionPerSSB-InPO.

[0177] As an example, the downlink control signaling is identified by SI-RNTI (System Information RNTI), and the first time-domain resource pool belongs to an SI-window.

[0178] As a sub-example of the above embodiment, X is CEIL (the number of PDCCH monitoring opportunities in one SI-window / Q), and CEIL is an up-rounding function.

[0179] As an example, the SI-window is the SI-window occupied by the SImessage of any entry in the schedulingInfoList.

[0180] As an example, the schedulingInfoList belongs to si-SchedulingInfo of SIB1.

[0181] As an example, the second signaling indicates Q2 SSB indices out of the Q SSB indices, and the Q2 SSB indices are respectively used to determine the Q2 time-domain resources.

[0182] As a sub-implementation of the above embodiments, the first time-domain resource is a time-domain resource in the first time-domain resource pool.

[0183] As a sub-implementation of the above embodiment, any one of the Q2 time-domain resources is one of the Q time-domain resources.

[0184] Typically, the first time-domain resource is a time-domain resource in the first time-domain resource pool that is determined by the first integer.

[0185] As an example, at least for the first node U1, the SSBs corresponding to the Q2 SSB indices are considered not to have been actually sent.

[0186] The advantages of the above method include: maintaining good compatibility with traditional UEs, while releasing Q2 SSBs and associated PDCCH monitoring opportunities.

[0187] As a sub-implementation of the above embodiment, the second signaling is used to indicate that at least the SSBs corresponding to the Q2 SSB indices of the first node U1 have not been actually sent.

[0188] As a sub-implementation of the above embodiment, the second signaling is used to instruct at least the first node U1 to abandon cell search using the SSBs corresponding to the Q2 SSB indices.

[0189] As a sub-example of the above embodiments, for a traditional UE, the SSBs corresponding to the Q2 SSB indices are considered to be actually transmitted.

[0190] Typically, the conventional UE cannot recognize the second signaling.

[0191] As an example, the conventional UE includes UEs that support at least 3GPP Release 15 and UEs that support 3GPP Release 16.

[0192] As an example, the conventional UE includes a UE of 3GPP Release 17.

[0193] As an example, for any one of the Q2 time-domain resources, the Q time-domain resources include a corresponding time-domain resource; the second signaling is used to indicate the any one time-domain resource from the corresponding time-domain resource.

[0194] As a sub-implementation of the above embodiment, time-domain resource #i (i = 0, 1, 2, ..., Q2-1) is any one of the Q2 time-domain resources, and time-domain resource #j in the Q time-domain resources corresponds to time-domain resource #i; the time-domain resource #j includes PDCCH monitoring opportunities #0, #1, #2, ...; the second signaling indicates the monitoring opportunity belonging to the time-domain resource #i from the PDCCH monitoring opportunities included in the time-domain resource #j.

[0195] As an example, the second signaling uses a bitmap to indicate whether each PDCCH monitoring opportunity in the PDCCH monitoring opportunities included in the time domain resource #j belongs to the time domain resource #i.

[0196] As a sub-implementation of the above embodiment, the Q2 time-domain resources correspond one-to-one with the Q2 different time-domain resources among the Q time-domain resources.

[0197] Typically, the third signaling is generated at a protocol layer below the RRC (Radio Resource Control) layer.

[0198] As an example, the third signaling is a MAC (Medium Access Control) CE (Control Element).

[0199] As an example, the third signaling is a DCI (Downlink Control Information).

[0200] As an example, the third signaling indicates that at least one search space is associated with the first PCI, and the behavior monitoring downlink control signaling is executed in the at least one search space.

[0201] As an example, the third signaling instructs at least one search space to switch from being associated with the first PCI to being associated with the second PCI, and the behavior monitoring downlink control signaling is executed in the at least one search space; the first PCI is different from the second PCI.

[0202] As a sub-implementation of the above embodiment, Q2 is less than Q, and any one of the Q2 time-domain resources is one of the Q time-domain resources.

[0203] As a sub-implementation of the above embodiment, Q1 is less than Q, and any one of the Q1 time-domain resources is one of the Q time-domain resources.

[0204] As an example, when the TCI state for receiving a PDCCH in a search space is indicated to be associated with an SSB QCL (Quasi co-location) identified by a PCI, the search space is associated with the PCI.

[0205] As an example, when the TCI status received by the PDCCH in a CORESET (Control resource set) is indicated as being associated with an SSB QCL (Quasi co-location) identified by a PCI, a search space corresponding to the CORESET is associated with the PCI.

[0206] As an example, when the TCI state for PDCCH reception in a search space is indicated to be associated with a CSI-RS (Channel State Information-Reference Signal) resource QCL and the CSI-RS resource is associated with an SSB QCL (Quasi co-location) identified by a PCI, the search space is associated with the PCI.

[0207] As an example, when the TCI state received by the PDCCH in a CORESET (Control resource set) is indicated as being associated with a CSI-RS resource QCL and the CSI-RS resource is associated with an SSB QCL (Quasi co-location) identified by a PCI, a search space associated with the CORESET is associated with the PCI.

[0208] As an example, Q2 is less than Q, and any one of the Q2 time-domain resources is one of the Q time-domain resources.

[0209] As a sub-implementation of the above embodiment, Q1 is less than Q, and any one of the Q1 time-domain resources is one of the Q time-domain resources.

[0210] As a sub-implementation of the above embodiments, the third signaling indicates that at least one search space is switched from being associated with the first PCI to being associated with the second PCI, and the behavior monitoring downlink control signaling is executed in the at least one search space; the first PCI is different from the second PCI.

[0211] As one embodiment of the above sub-example, the cell identified by the first PCI is the serving cell of the first node, and the cell identified by the second PCI is not configured with ServCellIndex.

[0212] The above method allows the first node to receive downlink control signaling through the cell identified by the second PCI, while maintaining the serving cell unchanged, thus achieving inter-cell mobility at a lower protocol layer.

[0213] As an example, for any PDCCH monitoring opportunity in the Q time-domain resources, if it overlaps with any symbol configured as uplink in the TDD-UL-DL-ConfigCommonIE, the PDCCH monitoring opportunity does not belong to the Q1 time-domain resources; the cell identified by the second PCI is the serving cell of the first node, the third signaling indicates that at least one search space is associated with the first PCI, and the behavior monitoring downlink control signaling is executed in the at least one search space.

[0214] As one embodiment of the above sub-example, the cell identified by the first PCI is not configured with a ServCellIndex.

[0215] As an example, whether the first time-domain resource pool is the first candidate pool or the second candidate pool is related to the first RNTI, and the downlink control signaling is identified by the first RNTI.

[0216] As one embodiment, the downlink control signaling being identified by the first RNTI includes: the first RNTI being used to scramble the CRC of the downlink control signaling.

[0217] As an example, the downlink control signaling identified by the first RNTI includes: the first RNTI being used to generate the RS sequence of the DMRS (DeModulation Reference Signal) of the downlink control signaling.

[0218] As one embodiment, the downlink control signaling being identified by the first RNTI includes: the first RNTI being used to determine the time-frequency resources occupied by the downlink control signaling.

[0219] Typically, when the first RNTI belongs to the first type of RNTI, the first time-domain resource pool is the first candidate resource pool; when the first RNTI belongs to the second type of RNTI, the first time-domain resource pool is the second candidate resource pool.

[0220] Typically, when the first RNTI belongs to the first type of RNTI, the first time-domain resource pool is the first candidate resource pool; when the first RNTI belongs to the second type of RNTI, the third signaling indicates whether the first time-domain resource pool is the first time-domain resource pool or the second candidate resource pool.

[0221] As an example, the first type of RNTI includes P-RNTI.

[0222] As a sub-implementation of the above embodiments, the second type of RNTI includes C-RNTI.

[0223] As a sub-example of the above embodiments, the second type of RNTI includes RNTIs configured via UE-dedicated signaling.

[0224] As a sub-example of the above embodiments, the second type of RNTI includes other RNTIs besides P-RNTI.

[0225] As an example, the first type of RNTI includes SI-RNTI.

[0226] As an example, the first type of RNTI includes RA (Random Access)-RNTI.

[0227] As an example, the first type of RNTI includes MsgB-RNTI.

[0228] As an example, the second type of RNTI includes MCS-RNTI.

[0229] As an example, the second type of RNTI includes C-RNTI.

[0230] As a sub-implementation of the above embodiments, the second type of RNTI includes C-RNTI (Cell Radio Network Temporary Identifier), MCS-C-RNTI, SP (Semi-Persistent)-CSI-RNTI, and CS (Configured Scheduling)-RNTI.

[0231] As an example, whether the first time-domain resource pool is a first candidate pool or a second candidate pool depends on the type of search space occupied by the downlink control signaling.

[0232] Typically, when the type of the search space occupied by the downlink control signaling belongs to a search space type in a first set of search space types, the first time domain resource pool is the first candidate resource pool; when the type of the search space occupied by the downlink control signaling belongs to a search space type in a second set of search space types, the first time domain resource pool is the second candidate resource pool.

[0233] Typically, when the type of the search space occupied by the downlink control signaling belongs to a search space type in a first set of search space types, the first time domain resource pool is the first candidate resource pool; when the type of the search space occupied by the downlink control signaling belongs to a search space type in a second set of search space types, the third signaling indicates whether the first time domain resource pool is the first time domain resource pool or the second candidate resource pool.

[0234] As an example, the first search space type set includes at least one search space type: a USS (UE-specific search space) set.

[0235] As an example, the first search space type set includes at least one search space type: Type0-PDCCH CSS set.

[0236] As an example, the first search space type set includes at least two search space types: Type0-PDCCH CSS set and USS set.

[0237] As an example, the second search space type set includes at least one search space type: Type2-PDCCH CSSset.

[0238] As an example, the second search space type set includes at least two search space types: Type2-PDCCH CSS set and Type3-PDCCH CSS set.

[0239] As an example, whether the first time-domain resource pool is the first candidate pool or the second candidate pool depends on the CORESET occupied to accommodate the downlink control signaling.

[0240] Typically, when the CORESET occupied by the downlink control signaling belongs to one of the CORESETs in the first CORESET set, the first time-domain resource pool is the first candidate resource pool; when the CORESET occupied by the downlink control signaling belongs to one of the CORESETs in the second CORESET set, the first time-domain resource pool is the second candidate resource pool.

[0241] Typically, when the CORESET occupied by the downlink control signaling belongs to one of the CORESETs in the first CORESET set, the first time-domain resource pool is the first candidate resource pool; when the CORESET occupied by the downlink control signaling belongs to one of the CORESETs in the second CORESET set, the third signaling indicates whether the first time-domain resource pool is the first time-domain resource pool or the second candidate resource pool.

[0242] As an example, no CORESET can belong to both the first CORESET set and the second CORESET set at the same time.

[0243] As an example, any one of the CORESET sets in the first CORESET set and the second CORESET set is assigned to the first node U1.

[0244] As an example, the coresetPoolIndex of all CORESETs in the first CORESET set is a first value, and the coresetPoolIndex of all CORESETs in the second CORESET set is a second value; the first value is different from the second value.

[0245] As an example, the first value is 0 and the second value is 1.

[0246] As an example, the first value and the second value are both non-negative integers not greater than 8.

[0247] As an example, the first CORESET set includes at least CORESET#0.

[0248] As one embodiment, the second CORESET set includes all CORESETs configured by the first node U1, in addition to the first CORESET set.

[0249] As an example, the first node U1 is a UE, and the second node U2 is a base station.

[0250] As a sub-implementation of the above embodiments, the sender of the third signaling is the first cell, and the sender of the downlink control signaling is the second cell. Both the first cell and the second cell are maintained by the second node U2.

[0251] As an example, the sender of the first signaling and the second signaling is the first cell.

[0252] As one embodiment, the sender of the first signaling and the second signaling is the second cell.

[0253] Example 6

[0254] Example 6 illustrates a schematic diagram of communication between a first node and a first cell and a second cell according to an embodiment of this application, as shown in the attached diagram. Figure 6 As shown.

[0255] In step S300, the first node U3 receives Q1 SSBs; optionally, in step S300, the first node U3 receives Q3 SSBs; in step S301, the first node U3 monitors downlink control signaling in the first time domain resources;

[0256] In step S400, the first cell U4 sends Q1 SSBs;

[0257] Optionally, the second cell U5 sends Q3 SSBs in step S500; the second cell U5 sends downlink control signaling in the first time domain resource in step S501.

[0258] In Example 6, the Q3 SSBs correspond to the Q3 SSB indices.

[0259] As an example, any one of the Q3 SSB indices is a non-negative integer not greater than 63.

[0260] As an example, any one of the Q3 SSB indices is a positive integer not greater than 64.

[0261] As one embodiment, the second signaling indicates Q2 SSB indices out of Q SSB indices, and the third signaling indicates one SSB index; if the one SSB index is one of the Q1 SSB indices, the first time-domain resource pool is a first candidate pool, and the first integer is the one SSB index; if the one SSB index is one of the Q3 SSB indices, the first time-domain resource pool is a second candidate pool, and the one SSB index is used to calculate the first integer, where the first integer is one of the Q2 SSB indices.

[0262] As an example, the SSB index used to calculate the first integer includes: the first integer being Mod(the SSB index, Q2).

[0263] As an example, the use of an SSB index to calculate the first integer includes: the Q3 SSB indices are sorted in order of size, and the first integer is Mod (the position of the SSB index in the sorted Q3 SSB indices, Q2).

[0264] As an example, at least the first node U3 assumes that the SSBs corresponding to the Q2 SSB indices have not been sent by the first cell U4.

[0265] Typically, both the first cell U4 and the second cell U5 are maintained by the second node; the first signaling in this application is SIB (System Information Block) 1; the second signaling in this application is generated at the RRC layer; the third signaling in this application is a MACCE or a DCI.

[0266] As an example, the first cell U4 is the serving cell of the first node U3, and the second cell U5 is not configured with ServCellIndex.

[0267] As a sub-implementation of the above embodiment, Q1 is less than Q, Q2 is less than Q in this application, and the Q time-domain resources are composed of the Q1 time-domain resources and the Q2 time-domain resources.

[0268] As a sub-implementation of the above embodiment, Q1 is equal to Q, and the Q1 time-domain resources are the Q time-domain resources; Q2 is less than Q in this application, and any one of the Q2 time-domain resources is one of the Q time-domain resources.

[0269] In one embodiment, the second cell U5 is the serving cell of the first node U3, and the first cell U4 is not configured with ServCellIndex.

[0270] As a sub-implementation of the above embodiment, at least one of the Q2 time-domain resources is a proper subset of one of the Q time-domain resources.

[0271] As an example, the Q1 SSBs and the Q3 SSBs are transmitted on the same BWP (Bandwidth Part).

[0272] As an example, the Q1 SSBs and the Q3 SSBs are transmitted on the same carrier.

[0273] As an example, the first PCI is used to generate the Q1 SSBs, and the second PCI is used to generate the Q3 SSBs.

[0274] As an example, the second PCI is used to generate the Q1 SSBs, and the first PCI is used to generate the Q3 SSBs.

[0275] Example 7

[0276] Example 7 illustrates a schematic diagram of a first temporal resource pool according to an embodiment of this application; as shown in the appendix. Figure 7 As shown. (Attached) Figure 7 In the diagram, each small square represents a PDCCH monitoring opportunity in the first time domain resource pool, with the gray-filled small squares belonging to the first time domain resources.

[0277] As an example, the first node monitors the downlink control signaling periodically, and the first time-domain resource pool consists of all PDCCH monitoring opportunities that can be occupied by the downlink control signaling within a period.

[0278] As an example, a PDCCH monitoring event belongs to a time slot.

[0279] As an example, a PDCCH monitoring event belongs to a span.

[0280] As an example, the number of PDCCH monitoring opportunities belonging to the first time domain resource pool between any two adjacent PDCCH monitoring opportunities in the first time domain resource is the same.

[0281] As an example, the period is a PO of a first cell, which is identified by a first PCI.

[0282] As an example, the period is an SI-window of a first cell, which is identified by a first PCI.

[0283] As an example, when the first time-domain resource pool is the first candidate pool, all PDCCH monitoring opportunities that can be occupied by the downlink control signaling do not include PDCCH monitoring opportunities where the OFDM symbols configured for uplink by the tdd-UL-DL-ConfigurationCommon sent by the first cell overlap, and the first cell is identified by the first PCI; the tdd-UL-DL-ConfigurationCommon sent by the second cell is not used by the first node to determine all PDCCH monitoring opportunities that can be occupied by the downlink control signaling, and the second cell is identified by the second PCI.

[0284] As an example, both the first cell and the second cell can send data to the first node.

[0285] As an example, both the first cell and the second cell can receive data from the first node.

[0286] As an example, the first RNTI is used to identify the downlink control signaling. When the first node performs blind decoding on the first RNTI during a PDCCH monitoring opportunity, the PDCCH monitoring opportunity can be occupied by the downlink control signaling.

[0287] As an example, the first RNTI is used to identify the downlink control signaling. When the first node does not perform blind decoding for the first RNTI during a PDCCH monitoring opportunity, the PDCCH monitoring opportunity cannot be occupied by the downlink control signaling.

[0288] Example 8

[0289] Example 8 illustrates a schematic diagram of the cell coverage status of a first node according to an embodiment of this application; as shown in the appendix. Figure 8 As shown.

[0290] As an example, the RRC layer of the first node terminates at the cell identified by the reference PCI.

[0291] As an example, the PDCP (Packet Data Convergence Protocol) layer of the first node terminates to the cell identified by the reference PCI.

[0292] As an example, the RLC (Radio Link Control) layer of the first node terminates to the cell identified by the reference PCI.

[0293] As an example, the MAC sublayer of the first node terminates at the cell identified by the reference PCI.

[0294] As an example, the cell identified by the reference PCI is a physical cell.

[0295] As an example, the cell identified by the reference PCI is the serving cell of the first node.

[0296] As an example, the cell identified by the target PCI is a physical cell.

[0297] As an example, the cell identified by the target PCI is the serving cell of the first node.

[0298] As an example, the cell identified by the target PCI is not the serving cell of the first node.

[0299] As an example, the cell identified by the target PCI provides additional resources on top of the cell identified by the reference PCI.

[0300] As an example, the cell identified by the target PCI is a candidate cell configured for L1 / L2 mobility.

[0301] As an example, the cell identified by the target PCI and the cell identified by the reference PCI are on the same frequency.

[0302] As an example, the cell identified by the target PCI and the cell identified by the reference PCI are of different frequencies.

[0303] As an example, the cell identified by the target PCI is a mobility management cell configured for the cell identified by the reference PCI.

[0304] As an example, when the first node transmits data using the cell identified by the target PCI, the serving cell of the first node remains unchanged.

[0305] As a sub-implementation of this embodiment, the phrase serving cell remaining unchanged means that at least one of the protocol stacks of the RRC layer, PDCP layer, RLC layer, MAC sublayer, or PHY layer does not need to be relocated.

[0306] As a sub-example of this embodiment, the phrase serving cell remaining unchanged means that the RRC connection remains unchanged.

[0307] As a sub-example of this embodiment, the phrase "the serving cell remains unchanged" means that the serving cell identifier remains unchanged.

[0308] As a sub-example of this embodiment, the phrase "the serving cell remains unchanged" means that all or part of the configuration in the ServingCellConfigCommon and / or ServingCellConfigCommonSIB configurations remains unchanged.

[0309] As an example, different RNTIs are used to determine the scrambling sequence of the physical layer channel transmitted or received by the first node in the cell identified by the target PCI and the scrambling sequence of the physical layer channel transmitted or received in the cell identified by the reference PCI.

[0310] As a sub-implementation of the above embodiments, the physical layer channel includes one or more of PDCCH, PDSCH, PUCCH (Physical Uplink Control Channel) or PUSCH (Physical Uplink Shared Channel).

[0311] As an example, the CRC of the PDCCH received by the first node in the cell identified by the target PCI and the CRC of the PDCCH received in the cell identified by the reference PCI are scrambled by different RNTIs.

[0312] As an example, the first PCI in this application is the reference PCI, and the second PCI in this application is the target PCI.

[0313] As an example, the second PCI in this application is the reference PCI, and the first PCI in this application is the target PCI.

[0314] Example 9

[0315] Example 9 illustrates a schematic diagram of the transmission of return signaling between a first node and a second node according to an embodiment of this application; as shown in the appendix. Figure 9 As shown. (Attached) Figure 9 A full-duplex working method is described, with appendix. Figure 9 The first and second rounds of signaling are both sent via the air interface.

[0316] Typically, the second node N2 and the third node N3 are each a base station.

[0317] As an example, the transmission of the first backhaul signaling overlaps in time with the uplink reception of the second node N2 (as shown by arrow A21), and the reception of the first backhaul signaling overlaps in time with the uplink reception of the third node N3 (as shown by arrow A31); that is, the second node N2 transmits the first backhaul signaling in full-duplex mode.

[0318] As an example, the transmission of the first backhaul signaling overlaps in time with the downlink transmission of the second node N2 (as shown by arrow A22), and the reception of the first backhaul signaling overlaps in time with the downlink transmission of the third node N3 (as shown by arrow A32); that is, the third node N3 transmits the first backhaul signaling in full-duplex mode.

[0319] As an example, the reception of the second backhaul signaling overlaps in time with the uplink reception of the second node N2 (as shown by arrow A21), and the transmission of the second backhaul signaling overlaps in time with the uplink reception of the third node N3 (as shown by arrow A31); that is, the third node N3 transmits the first backhaul signaling in full-duplex mode.

[0320] As an example, the reception of the second backhaul signaling overlaps in time with the downlink transmission of the second node N2 (as shown by arrow A22), and the transmission of the second backhaul signaling overlaps in time with the downlink transmission of the third node N3 (as shown by arrow A32); that is, the second node N2 transmits the first backhaul signaling in full-duplex mode.

[0321] As one embodiment, Q2 SSB indices correspond to Q2 SSBs respectively. The air interface resources reserved for the Q2 SSBs are allocated to the first backhaul signaling or the second backhaul signaling for information exchange between base stations. This application can avoid the first node from measuring the Q2 SSBs. At the same time, this embodiment allows the first node to receive downlink control signaling when it is associated with the PDCCH monitoring of the Q2 SSBs, avoiding the waste of time and frequency resources and improving transmission efficiency.

[0322] Example 10

[0323] Example 10 illustrates a structural block diagram of a processing apparatus for a first node according to an embodiment of this application; as shown in the appendix. Figure 10 As shown. In the appendix Figure 10 In the first node, the processing device 1000 includes a first receiver 1001.

[0324] In embodiment 10, a first receiver 1001 receives a first signaling and a second signaling. The first signaling indicates that Q SSBs are transmitted, and the Q SSBs correspond to Q SSB indices. The Q SSB indices are used to determine Q time-domain resources, where Q is a positive integer greater than 1. A first time-domain resource is determined based on at least a first integer, and the candidates for the first time-domain resource form a first time-domain resource pool. Downlink control signaling is monitored in the first time-domain resource.

[0325] In Example 10, the first integer is one of the Q SSB indices, the first time-domain resource belongs to one time-domain resource in the first time-domain resource pool, and the first time-domain resource pool is one of a first candidate pool and a second candidate pool; the first candidate pool includes Q1 time-domain resources, and the second candidate pool includes Q2 time-domain resources; any one of the Q1 time-domain resources is one of the Q time-domain resources, and at least one of the Q1 time-domain resources does not belong to the Q2 time-domain resources; the Q2 time-domain resources are a proper subset of the Q time-domain resources; the second signaling is used to determine the Q2 time-domain resources; and the Q SSBs are associated with a first PCI.

[0326] As an example, the first receiver 1001 receives a third signaling, which is used to determine whether the first time-domain resource pool is a first candidate pool or a second candidate pool.

[0327] As an example, the second signaling indicates Q2 SSB indices out of the Q SSB indices, and the Q2 SSB indices are respectively used to determine the Q2 time-domain resources.

[0328] As an example, at least for the first node, the SSBs corresponding to the Q2 SSB indices are considered not to have been actually sent.

[0329] As an example, for any one of the Q2 time-domain resources, the Q time-domain resources include a corresponding time-domain resource; the second signaling is used to indicate the any one time-domain resource from the corresponding time-domain resource.

[0330] As an example, the Q time-domain resources each contain Q CSS (Common search space) sets, and each of the Q CSS set sets includes at least one CSS set.

[0331] As one embodiment, whether the first time-domain resource pool is a first candidate pool or a second candidate pool is related to the first RNTI, and the downlink control signaling is identified by the first RNTI; or, whether the first time-domain resource pool is a first candidate pool or a second candidate pool is related to the CORESET that contains the downlink control signaling.

[0332] As an example, the first node is a user equipment.

[0333] As an example, the first node is a relay node device.

[0334] As an example, the first receiver 1001 includes {antenna 452, receiver processor 456, multi-antenna receiver processor 458, controller / processor 459} as in Example 4.

[0335] As one embodiment, the first receiver 1001 includes at least one of {memory 460, data source 467} in embodiment 4.

[0336] Example 11

[0337] Example 11 illustrates a structural block diagram of a processing apparatus for a second node according to an embodiment of this application; as shown in the appendix. Figure 11 As shown. In the appendix Figure 11 In the second node, the processing device 1100 includes a first transmitter 1101.

[0338] In embodiment 11, the first transmitter 1101 sends a first signaling and a second signaling. The first signaling indicates that Q SSBs are sent. The Q SSBs correspond to Q SSB indices, and the Q SSB indices are used to determine Q time-domain resources. Q is a positive integer greater than 1.

[0339] In Example 11, at least a first integer is used to determine a first time-domain resource, and the candidates for the first time-domain resource form a first time-domain resource pool; the first time-domain resource is reserved for downlink control signaling; the first integer is one of the Q SSB indices, the first time-domain resource belongs to one time-domain resource in the first time-domain resource pool, and the first time-domain resource pool is one of a first candidate pool and a second candidate pool; the first candidate pool includes Q1 time-domain resources, and the second candidate pool includes Q2 time-domain resources; any one of the Q1 time-domain resources is one of the Q time-domain resources, and at least one of the Q1 time-domain resources does not belong to the Q2 time-domain resources; the Q2 time-domain resources are a proper subset of the Q time-domain resources; the second signaling is used to determine the Q2 time-domain resources; the Q SSBs are associated with a first PCI.

[0340] As an example, the first transmitter 1101 sends a third signaling message, which is used to determine whether the first time-domain resource pool is a first candidate pool or a second candidate pool.

[0341] As an example, the second signaling indicates Q2 SSB indices out of the Q SSB indices, and the Q2 SSB indices are respectively used to determine the Q2 time-domain resources.

[0342] As an example, at least for the first node, the SSBs corresponding to the Q2 SSB indices are considered not to have been actually sent.

[0343] As an example, for any one of the Q2 time-domain resources, the Q time-domain resources include a corresponding time-domain resource; the second signaling is used to indicate the any one time-domain resource from the corresponding time-domain resource.

[0344] As an example, the Q time-domain resources each contain Q CSS (Common search space) sets, and each of the Q CSS set sets includes at least one CSS set.

[0345] As one embodiment, whether the first time-domain resource pool is a first candidate pool or a second candidate pool is related to the first RNTI, and the downlink control signaling is identified by the first RNTI; or, whether the first time-domain resource pool is a first candidate pool or a second candidate pool is related to the CORESET that contains the downlink control signaling.

[0346] As one example, the second node is a base station device.

[0347] As one example, the second node is a TRP device.

[0348] As one example, the second node is a relay node device.

[0349] As one example, the second node is a CU device.

[0350] As one embodiment, the second node is a DU device.

[0351] As an example, the first transmitter 1101 includes {antenna 420, transmitter 418, transmission processor 416, multi-antenna transmission processor 471} as in Example 4.

[0352] As one embodiment, the first transmitter 1101 includes at least one of {controller / processor 475, memory 476} in embodiment 4.

[0353] Those skilled in the art will understand that all or part of the steps in the above methods can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium, such as a read-only memory, hard disk, or optical disk. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiments can be implemented in hardware or in the form of software functional modules. This application is not limited to any specific combination of software and hardware. The user equipment, terminal, and UE in this application include, but are not limited to, drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablets, laptops, vehicle-mounted communication devices, vehicles, RSUs, wireless sensors, internet access cards, IoT terminals, RFID terminals, NB-IoT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, internet access cards, vehicle-mounted communication devices, low-cost mobile phones, low-cost tablets, and other wireless communication devices. The base stations or system equipment in this application include, but are not limited to, macrocell base stations, microcell base stations, small cell base stations, home base stations, relay base stations, eNBs, gNBs, TRPs (Transmitter Receiver Points), GNSS, relay satellites, satellite base stations, airborne base stations, RSUs (Road Side Units), drones, and testing equipment, such as transceivers or signaling testers that simulate some functions of a base station, and other wireless communication equipment.

[0354] Those skilled in the art will understand that the present invention can be practiced in other specified forms without departing from its core or essential characteristics. Therefore, the embodiments disclosed herein should in any way be considered descriptive rather than restrictive. The scope of the invention is defined by the appended claims rather than the foregoing description, and all modifications within their equivalent meaning and scope are considered to be included therein.

Claims

1. A user equipment (UE) configured for wireless communication, the UE comprising: include: The receiver receives a first signaling and a second signaling. The first signaling indicates that Q SSBs are transmitted, each corresponding to a Q SSB index. These Q SSB indices are used to determine Q time-domain resources, where Q is a positive integer greater than 1. The UE determines a first time-domain resource based on at least a first integer. Candidates for the first time-domain resources form a first time-domain resource pool. The UE monitors downlink control signaling within these first time-domain resources. Wherein, the first integer is one of the Q SSB indices, the first time-domain resource belongs to one time-domain resource in the first time-domain resource pool, the first time-domain resource pool is one of the first candidate pool and the second candidate pool; the first candidate pool includes Q1 time-domain resources, and the second candidate pool includes Q2 time-domain resources; any one of the Q1 time-domain resources is one of the Q time-domain resources, and at least one of the Q1 time-domain resources does not belong to the Q2 time-domain resources; the Q2 time-domain resources are a proper subset of the Q time-domain resources; the second signaling is used to determine the Q2 time-domain resources; the Q SSBs are associated with the first PCI.

2. The UE according to claim 1, characterized in that, The second signaling indicates Q2 SSB indices out of the Q SSB indices, and the Q2 SSB indices are used to determine the Q2 time-domain resources respectively.

3. The UE according to claim 2, characterized in that, At least for the UE, the SSBs corresponding to the Q2 SSB indices are considered not to have been actually transmitted.

4. The UE according to claim 1, characterized in that, For any one of the Q2 time-domain resources, the Q time-domain resources include a corresponding time-domain resource; the second signaling is used to indicate the any one time-domain resource from the corresponding time-domain resource.

5. The UE according to any one of claims 1 to 4, characterized in that, The Q time-domain resources each contain Q public search space CSS set groups, and each of the Q CSS set groups includes at least one CSS set.

6. The UE according to claim 1, characterized in that, include: The receiver receives a third signaling message, which is used to determine whether the first time-domain resource pool is a first candidate pool or a second candidate pool.

7. The UE according to claim 1, characterized in that, Whether the first time-domain resource pool is the first candidate pool or the second candidate pool is related to the first radio network provisional identifier (RNTI), and the downlink control signaling is identified by the first RNTI; or, whether the first time-domain resource pool is the first candidate pool or the second candidate pool is related to the control resource set (CORESET) that accommodates the downlink control signaling.

8. A base station device used for wireless communication, characterized in that, include: The transmitter sends a first signaling and a second signaling. The first signaling indicates that Q SSBs are sent. The Q SSBs correspond to Q SSB indices, and the Q SSB indices are used to determine Q time-domain resources. Q is a positive integer greater than 1. Wherein, at least a first integer is used to determine a first time-domain resource, and the candidates for the first time-domain resource form a first time-domain resource pool; the first time-domain resource is reserved for downlink control signaling; the first integer is one of the Q SSB indices, the first time-domain resource belongs to one time-domain resource in the first time-domain resource pool, and the first time-domain resource pool is one of a first candidate pool and a second candidate pool; the first candidate pool includes Q1 time-domain resources, and the second candidate pool includes Q2 time-domain resources; any one of the Q1 time-domain resources is one of the Q time-domain resources, and at least one of the Q1 time-domain resources does not belong to the Q2 time-domain resources; the Q2 time-domain resources are a proper subset of the Q time-domain resources; The second signaling is used to determine the Q2 time-domain resources; the Q SSBs are associated with the first PCI.

9. A method used in a user equipment (UE) for wireless communication, characterized in that, include: Receive first signaling and second signaling, the first signaling indicating that Q SSBs are sent, the Q SSBs respectively corresponding to Q SSB indices, the Q SSB indices being used to determine Q time-domain resources, where Q is a positive integer greater than 1; determine a first time-domain resource based on at least a first integer, the candidates for the first time-domain resource forming a first time-domain resource pool; monitor downlink control signaling in the first time-domain resource; Wherein, the first integer is one of the Q SSB indices, the first time-domain resource belongs to one time-domain resource in the first time-domain resource pool, and the first time-domain resource pool is one of the first candidate pool and the second candidate pool; the first candidate pool includes Q1 time-domain resources, and the second candidate pool includes Q2 time-domain resources; any one of the Q1 time-domain resources is one of the Q time-domain resources, and at least one of the Q1 time-domain resources does not belong to the Q2 time-domain resources; the Q2 time-domain resources are a proper subset of the Q time-domain resources; The second signaling is used to determine the Q2 time-domain resources; the Q SSBs are associated with the first PCI.

10. The method in the UE according to claim 9, characterized in that, The second signaling indicates Q2 SSB indices out of the Q SSB indices, and the Q2 SSB indices are used to determine the Q2 time-domain resources respectively.

11. The method in the UE according to claim 9, characterized in that, At least for the UE, the SSBs corresponding to the Q2 SSB indices are considered not to have been actually transmitted.

12. The method in the UE according to claim 9, characterized in that, For any one of the Q2 time-domain resources, the Q time-domain resources include a corresponding time-domain resource; the second signaling is used to indicate the any one time-domain resource from the corresponding time-domain resource.

13. The method in the UE according to claim 9, characterized in that, The Q time-domain resources each contain Q public search space CSS set groups, and each of the Q CSS set groups includes at least one CSS set.

14. The method in the UE according to claim 9, characterized in that, include: A third signaling is received, which is used to determine whether the first time-domain resource pool is a first candidate pool or a second candidate pool.

15. The method in the UE according to claim 9, characterized in that, Whether the first time-domain resource pool is the first candidate pool or the second candidate pool is related to the first radio network provisional identifier (RNTI), and the downlink control signaling is identified by the first RNTI; or, whether the first time-domain resource pool is the first candidate pool or the second candidate pool is related to the control resource set (CORESET) that accommodates the downlink control signaling.

16. A method used in a base station device for wireless communication, characterized in that, include: Send a first signaling and a second signaling, wherein the first signaling indicates that Q SSBs are sent, the Q SSBs correspond to Q SSB indices respectively, and the Q SSB indices are used to determine Q time-domain resources respectively, wherein Q is a positive integer greater than 1; Wherein, at least a first integer is used to determine a first time-domain resource, and the candidates of the first time-domain resource form a first time-domain resource pool; the first time-domain resource is reserved for downlink control signaling; the first integer is one of the Q SSB indices, the first time-domain resource belongs to a time-domain resource in the first time-domain resource pool, and the first time-domain resource pool is one of a first candidate pool and a second candidate pool; the first candidate pool includes Q1 time-domain resources, and the second candidate pool includes Q2 time-domain resources; any one of the Q1 time-domain resources is one of the Q time-domain resources, and at least one of the Q1 time-domain resources does not belong to the Q2 time-domain resources; the Q2 time-domain resources are a proper subset of the Q time-domain resources; the second signaling is used to determine the Q2 time-domain resources; the Q SSBs are associated with a first PCI.

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