A method and apparatus in a communication node for use in wireless communication

Abstract

The present application discloses a method and apparatus in a communication node for use in wireless communication. The communication node receives first signaling that indicates a target identifier, listens for a first PDCCH that is associated with a first downlink RS resource which is associated with a first PCI, receives second signaling that is used to indicate a second PCI, and in response to receiving the second signaling as the action, listens for a second PDCCH and abandons listening for the first PDCCH, where the second PDCCH is associated with a second downlink RS resource which is associated with the second PCI; the first signaling includes an RRC message; the second signaling includes signaling below the RRC layer; the first PDCCH is scrambled with a source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; and the source identifier and the target identifier are each an RNTI respectively.

Description

Technical Field

[0001] The present application relates to transmission methods and devices in a wireless communication system, and particularly to transmission methods and devices for mobility. Background Art

[0002] Traditional network-controlled mobility includes cell-level mobility and beam-level mobility. Among them, cell-level mobility depends on RRC (Radio Resource Control) signaling, and beam-level mobility does not involve RRC signaling. Before 3GPP (the 3rd Generation Partnership Project) R16, beam-level mobility was only for beam management within a single cell of a cell. The 3GPP RAN #80 meeting decided to launch the "Further enhancements on MIMO for NR" work item (WI) to support multi-beam operation and enhance L1 / L2 (Layer 1 / Layer 2)-centric inter-cell mobility. Summary of the Invention

[0003] L1 / L2-centric inter-cell mobility can be achieved in a way similar to mTRP (multiple Transmit / Receive Point). Parameters related to L1 / L2-centric inter-cell mobility are configured through RRC messages. When the UE (User Equipment) is within the coverage of the current serving cell, it determines to use the TRP of another cell for data transmission by receiving a downlink command. The other cell and the current serving cell have different PCIs. When the UE uses the TRP of another cell for data transmission, it will affect the operation of the serving cell and enhancements are needed.

[0004] In view of the above problems, the present application provides a solution. In the above problem description, the uu interface scenario is taken as an example; the present application is also applicable to scenarios such as the sidelink scenario and can achieve similar technical effects as in the uu interface scenario. In addition, using a unified solution for different scenarios helps to reduce hardware complexity and cost.

[0005] As an example, the interpretation of the terms in this application refers to the definitions in the 3GPP specification protocol series TS36.

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

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

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

[0009] It should be noted that, without conflict, the embodiments and features in any node of this application can be applied to any other node. Without conflict, the embodiments and features in the embodiments of this application can be combined with each other arbitrarily.

[0010] This application discloses a method used in a first node for wireless communication, which is characterized by including:

[0011] Receiving a first signaling, where the first signaling indicates a target identifier;

[0012] Monitoring a first PDCCH (Physical Downlink Control Channel), where the first PDCCH is associated with a first downlink RS (Reference Signal) resource, and the first downlink RS resource is associated with a first PCI (Physical Cell Identifier);

[0013] Receiving a second signaling, where the second signaling is used to indicate a second PCI;

[0014] As a response to receiving the second signaling as the said action, monitoring a second PDCCH and giving up monitoring the first PDCCH, where the second PDCCH is associated with a second downlink RS resource, and the second downlink RS resource is associated with the second PCI;

[0015] Among them, the first signaling includes RRC messages; the second signaling includes signaling below the RRC layer; the first PDCCH is scrambled with a source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; the source identifier and the target identifier are each an RNTI (Radio Network Temporary Identifier).

[0016] As an embodiment, the problems to be solved by this application include: how to achieve L1 / L2-centric inter-cell mobility.

[0017] As an embodiment, the L1 / L2-centric inter-cell mobility includes: the first node uses the radio resources of another cell within a serving cell, and the other cell and the serving cell have different PCIs.

[0018] As an embodiment, when the first node uses the radio resources of another cell within a serving cell, the serving cell remains unchanged.

[0019] As an embodiment, when the first node uses the radio resources of another cell within a serving cell, it continues to monitor the BCCH (Broadcast Control Channel) of the serving cell.

[0020] As an embodiment, when the first node uses the radio resources of another cell within a serving cell, it continues to monitor the system information of the serving cell.

[0021] As an embodiment, the L1 / L2-centric inter-cell mobility includes: the first node performs PUSCH (Physical uplink shared channel) / PDSCH (Physical downlink shared channel) transmission through another TRP within a serving cell, and the other TRP does not belong to the serving cell.

[0022] As an embodiment, the L1 / L2-centric inter-cell mobility includes: the first node triggers cell handover according to L1 / L2 measurements.

[0023] As an embodiment, the L1 / L2-centric inter-cell mobility includes: not performing L3 (Layer 3)-based handover.

[0024] As an embodiment, when the first node triggers cell handover based on L1 / L2 measurement, the serving cell changes.

[0025] As an embodiment, the problems to be solved by this application include: how to ensure service continuity.

[0026] As an embodiment, the problems to be solved by this application include: how to implement HARQ operations for inter-cell mobility centered on L1 / L2.

[0027] As an embodiment, the advantages of the above method include: when inter-cell mobility centered on L1 / L2 is executed, the MAC is not reset.

[0028] As an embodiment, the advantages of the above method include: improving service continuity.

[0029] As an embodiment, the advantages of the above method include: reusing HARQ processes.

[0030] As an embodiment, the advantages of the above method include: avoiding triggering unnecessary beam failures.

[0031] As an embodiment, the advantages of the above method include: avoiding HARQ merging of data on cells identified by different PCIs, reducing data processing complexity.

[0032] As an embodiment, the advantages of the above method include: avoiding L3 handover.

[0033] According to one aspect of this application, it is characterized in that it includes:

[0034] As a response to receiving the second signaling for the behavior, regard the first secondary cell as a deactivated state;

[0035] Wherein, the first secondary cell and the cell identified by the first PCI belong to the same cell group.

[0036] As an embodiment, the characteristics of the above method include: when the SpCell (Special Cell) executes inter-cell mobility centered on L1 / L2, regard the SCell within the corresponding cell group as a deactivated state.

[0037] According to one aspect of this application, it is characterized in that the first secondary cell and the cell identified by the second PCI belong to different TAGs (Timing Advance Groups).

[0038] As an embodiment, the characteristics of the above method include: the state of the SCell belonging to the same TAG as the SpCell remains unchanged.

[0039] As an embodiment, the characteristics of the above method include: deactivating the SCell that belongs to a different TAG from the SpCell.

[0040] According to one aspect of the present application, it is characterized in that it includes:

[0041] In response to receiving the second signaling for the said behavior, set the C-RNTI (Cell Radio Network Temporary Identifier) to the said target identifier.

[0042] As an embodiment, the characteristics of the above method include: the UE side only maintains one C-RNTI at the same time, and the value of the C-RNTI is related to the physical resources currently used.

[0043] As an embodiment, the characteristics of the above method include: when the SpCell performs cell-to-cell mobility centered on L1 / L2, set the C-RNTI to the said target identifier.

[0044] According to one aspect of the present application, it is characterized in that it includes:

[0045] Receive a first uplink grant and a second uplink grant, where the first uplink grant is associated with the said source identifier, and the second uplink grant is associated with the said target identifier;

[0046] In response to receiving the first uplink grant and the second uplink grant for the said behavior, consider that the first NDI (New Data Indicator) has flipped;

[0047] Wherein, the first uplink grant and the second uplink grant are associated with the same HARQ (Hybrid Automatic Repeat Request) process; the receiving time of the first uplink grant is earlier than the receiving time of the second uplink grant.

[0048] According to one aspect of the present application, it is characterized in that it includes:

[0049] Receive a first uplink grant and a second uplink grant, where the first uplink grant is associated with the said source identifier, and the second uplink grant is associated with the said target identifier; in response to receiving the first uplink grant and the second uplink grant for the said behavior, consider that the first NDI has not flipped;

[0050] Wherein, the first uplink grant and the second uplink grant are associated with the same HARQ process; the receiving time of the first uplink grant is earlier than the receiving time of the second uplink grant.

[0051] As an example, the characteristics of the above method include: for the same HARQ process, when a UL grant associated with a C-RNTI is received, if the previous UL grant is associated with a target identifier, it is considered that the first NDI has been flipped; wherein, the target identifier is the C-RNTI of the first node in the cell identified by the second PCI.

[0052] According to one aspect of the present application, it is characterized in that it includes:

[0053] In response to receiving the second signaling as the said behavior, clear the first counter; the first counter is maintained at the MAC (Medium Access Control) layer.

[0054] As an example, the characteristics of the above method include: the first counter is BFI_COUNTER.

[0055] As an example, the characteristics of the above method include: the first counter is LBT_COUNTER.

[0056] As an example, the characteristics of the above method include: the first counter is for the cell identified by the first PCI, or the first counter is for the cell identified by the second PCI.

[0057] As an example, the characteristics of the above method include: when the SpCell performs cell-to-cell mobility centered on L1 / L2, clear the first counter.

[0058] According to one aspect of the present application, it is characterized in that it includes:

[0059] Receive a first type of reference signal, the first type of reference signal is associated with the second PCI, and the measurement for the first type of reference signal is used to determine to update the first counter;

[0060] When the first counter reaches a first value, initiate a first random access procedure; in response to the behavior of initiating the first random access procedure, send a first radio signal, the first radio signal is associated with the first PCI;

[0061] Wherein, the first value is a positive integer; the first type of reference signal has nothing to do with the first PCI.

[0062] As an example, the characteristics of the above method include: when the SpCell performs cell-to-cell mobility centered on L1 / L2, if a beam failure occurs on the cell identified by the second PCI, perform beam failure recovery on the cell identified by the first PCI.

[0063] As an embodiment, the characteristics of the above method include: random access resources for BFR are configured on the cell with the first PCI identifier, and random access resources for BFR are not configured on the cell with the second PCI identifier.

[0064] According to one aspect of the present application, it is characterized in that it includes:

[0065] Sending a second wireless signal, the second wireless signal including the source identifier;

[0066] Wherein, the second wireless signal belongs to the first random access procedure; the second wireless signal is sent after the first wireless signal.

[0067] The present application discloses a method in a second node for wireless communication, which is characterized in that it includes:

[0068] Sending a first signaling, the first signaling indicating a target identifier;

[0069] Sending a first PDCCH, the first PDCCH being associated with a first downlink RS resource, the first downlink RS resource being associated with a first PCI;

[0070] Sending a second signaling, the second signaling being used to indicate a second PCI;

[0071] Wherein, in response to receiving the second signaling, a second PDCCH is monitored and the first PDCCH is given up being monitored, the second PDCCH being associated with a second downlink RS resource, the second downlink RS resource being associated with the second PCI; the first signaling includes an RRC message; the second signaling includes a signaling below the RRC layer; the first PDCCH is scrambled with the source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; the source identifier and the target identifier are each an RNTI.

[0072] According to one aspect of the present application, it is characterized in that, in response to receiving the second signaling, a first secondary cell is regarded as being in a deactivated state; wherein, the first secondary cell and the cell identified by the first PCI belong to the same cell group.

[0073] According to one aspect of the present application, it is characterized in that the first secondary cell and the cell identified by the second PCI belong to different TAGs.

[0074] According to one aspect of the present application, it is characterized in that, in response to receiving the second signaling, the C-RNTI is set to the target identifier.

[0075] According to one aspect of the present application, it is characterized in that it includes:

[0076] Send a first uplink grant, where the first uplink grant is associated with the source identifier;

[0077] Wherein, in response to receiving the first uplink grant and the second uplink grant, the first NDI is considered to have flipped; the second uplink grant is associated with the target identifier; the first uplink grant and the second uplink grant are associated with the same HARQ process; the reception time of the first uplink grant is earlier than the reception time of the second uplink grant.

[0078] According to one aspect of the present application, it is characterized in that it includes:

[0079] Send a first uplink grant, where the first uplink grant is associated with the source identifier;

[0080] Wherein, in response to receiving the first uplink grant and the second uplink grant, the first NDI is considered not to have flipped; the second uplink grant is associated with the target identifier; the first uplink grant and the second uplink grant are associated with the same HARQ process; the reception time of the first uplink grant is earlier than the reception time of the second uplink grant.

[0081] According to one aspect of the present application, it is characterized in that in response to receiving the second signaling, the first counter is cleared; the first counter is maintained at the MAC layer.

[0082] According to one aspect of the present application, it is characterized in that it includes:

[0083] Receive a first radio signal, where the first radio signal is associated with the first PCI;

[0084] Wherein, a first type of reference signal is received, the first type of reference signal is associated with the second PCI, the measurement for the first type of reference signal is used to determine updating the first counter; when the first counter reaches a first value, a first random access process is initiated; in response to initiating the first random access process, the first radio signal is sent; the first value is a positive integer; the first type of reference signal has nothing to do with the first PCI.

[0085] According to one aspect of the present application, it is characterized in that it includes:

[0086] Receive a second radio signal, where the second radio signal includes the source identifier;

[0087] Wherein, the second radio signal belongs to the first random access process; the second radio signal is sent after the first radio signal.

[0088] The present application discloses a first node for use in wireless communication, characterized by comprising:

[0089] A first receiver, receiving a first signaling that indicates a target identifier; monitoring a first PDCCH that is associated with a first downlink RS resource which is associated with a first PCI; receiving a second signaling that is used to indicate a second PCI; in response to receiving the second signaling as the said behavior, monitoring a second PDCCH and ceasing to monitor the first PDCCH, the second PDCCH being associated with a second downlink RS resource which is associated with the second PCI;

[0090] Wherein, the first signaling includes an RRC message; the second signaling includes a signaling below the RRC layer; the first PDCCH is scrambled with a source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; the source identifier and the target identifier are each an RNTI.

[0091] The present application discloses a second node for use in wireless communication, characterized by comprising:

[0092] A second transmitter, transmitting a first signaling that indicates a target identifier; transmitting a first PDCCH that is associated with a first downlink RS resource which is associated with a first PCI; transmitting a second signaling that is used to indicate a second PCI;

[0093] Wherein, in response to the second signaling being received, a second PDCCH is monitored and the first PDCCH is ceased to be monitored, the second PDCCH being associated with a second downlink RS resource which is associated with the second PCI; the first signaling includes an RRC message; the second signaling includes a signaling below the RRC layer; the first PDCCH is scrambled with a source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; the source identifier and the target identifier are each an RNTI.

[0094] As an embodiment, compared with the traditional solution, the present application has the following advantages:

[0095] -. Avoiding L3 handover;

[0096] -. Improving service continuity;

[0097] -. Reusing HARQ processes;

[0098] -. Avoiding triggering unnecessary beam failures;

[0099] - When the small cell mobility centered on L1 / L2 is executed, the MAC is not reset;

[0100] - Avoid HARQ combining of data on cells identified by different PCIs to reduce data processing complexity. BRIEF DESCRIPTION OF THE DRAWINGS

[0101] Other features, objects, and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0102] Figure 1 FIG. shows a flowchart of the transmission of a first signaling, a second signaling, a first PDCCH, and a second PDCCH according to an embodiment of the present application;

[0103] Figure 2 FIG. shows a schematic diagram of a network architecture according to an embodiment of the present application;

[0104] Figure 3 FIG. shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0105] Figure 4 FIG. shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

[0106] Figure 5 FIG. shows a flowchart of a radio signal transmission according to an embodiment of the present application;

[0107] Figure 6 FIG. shows a flowchart of a radio signal transmission according to another embodiment of the present application;

[0108] Figure 7 FIG. shows a flowchart of a radio signal transmission according to still another embodiment of the present application;

[0109] Figure 8 FIG. shows a flowchart of a radio signal transmission according to yet another embodiment of the present application;

[0110] Figure 9 FIG. shows a schematic diagram that a first secondary cell and a cell identified by a second PCI belong to different TAGs according to an embodiment of the present application;

[0111] Figure 10 FIG. shows a schematic diagram of the relationship between a second node and a fourth node according to an embodiment of the present application;

[0112] Figure 11 FIG. shows a block diagram of a processing device in a first node according to an embodiment of the present application;

[0113] Figure 12 shows a structural block diagram of a processing device in a second node according to an embodiment of the present application;

[0114] Figure 13 shows a wireless signal transmission flow chart in which receiving a first uplink grant and a second uplink grant are used to determine that it is considered that the first NDI is not flipped according to an embodiment of the present application. Detailed implementation manners

[0115] The technical solutions of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, without conflict, the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily.

[0116] Example 1

[0117] Embodiment 1 exemplifies a flow chart of the transmission of a first signaling, a second signaling, a first PDCCH, and a second PDCCH according to an embodiment of the present application, as shown in the accompanying Figure 1 figures. In the accompanying Figure 1 figures, each box represents a step. It should be emphasized in particular that the order of the boxes in the figures does not represent the chronological order between the represented steps.

[0118] In Embodiment 1, in step 101, a first node in the present application receives a first signaling, the first signaling indicating a target identifier; monitors a first PDCCH, the first PDCCH being associated with a first downlink RS resource, the first downlink RS resource being associated with a first PCI; receives a second signaling, the second signaling being used to indicate a second PCI; in response to receiving the second signaling as the action, monitors a second PDCCH and abandons monitoring the first PDCCH, the second PDCCH being associated with a second downlink RS resource, the second downlink RS resource being associated with the second PCI; wherein, the first signaling includes an RRC message; the second signaling includes a signaling below the RRC layer; the first PDCCH is scrambled with a source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; the source identifier and the target identifier are each an RNTI.

[0119] As an embodiment, the phrase the first signaling includes an RRC message includes: the first signaling includes at least one RRC (Radio Resource Control) message.

[0120] As an example, the phrase "the first signaling includes an RRC message" means that the first signaling includes at least one IE (Information Element) in an RRC message.

[0121] As an example, the phrase "the first signaling includes an RRC message" means that the first signaling includes at least one field in an RRC message.

[0122] As an example, the first signaling includes an RRCReconfiguration message or an RRCConnectionReconfiguration message.

[0123] As an example, the first signaling is transmitted over the air interface.

[0124] As an example, the first signaling is a higher layer message.

[0125] As an example, the Signalling Radio Bearer (SRB) of the first signaling includes SRB1.

[0126] As an example, the Signalling Radio Bearer of the first signaling includes SRB3.

[0127] As an example, the first signaling is a command to modify an RRC connection.

[0128] As an example, the first signaling includes an RRCSetup message or an RRCConnectionSetup message.

[0129] As an example, the first signaling includes an RRCReestablishment message or an RRCConnectionReestablishment message.

[0130] As an example, the first signaling includes an RRCResume message or an RRCConnectionResume message.

[0131] As an example, the phrase "the first signaling indicates a target identifier" means that the first signaling is used to determine the target identifier.

[0132] As an example, the phrase "the first signaling indicates a target identifier" means that the target identifier is set according to the first signaling.

[0133] As an example, the phrase "the first signaling indicates a target identifier" means that the first signaling includes the target identifier.

[0134] As an example, the phrase the first signaling indicates a target identifier includes: a field in the first signaling indicates the target identifier.

[0135] As an example, the meaning of the listening includes monitoring.

[0136] As an example, the meaning of the listening includes searching.

[0137] As an example, the meaning of the listening includes monitoring.

[0138] As an example, the meaning of the listening includes checking through CRC (Cyclic Redundancy Check).

[0139] As an example, the act of listening to a PDCCH includes: determining whether there is a DCI (Downlink Control Information) on the search space corresponding to the first PDCCH through energy detection.

[0140] As an example, the act of listening to a PDCCH includes: determining whether there is a DCI on the search space corresponding to the PDCCH through coherent detection, where the PDCCH is the first PDCCH or the second PDCCH.

[0141] As an example, the act of listening to a PDCCH includes: determining whether there is a DCI on the search space corresponding to the PDCCH through wideband detection, where the PDCCH is the first PDCCH or the second PDCCH.

[0142] As an example, the act of listening to a PDCCH includes: determining whether there is a DCI on the search space corresponding to the PDCCH through correlation detection, where the PDCCH is the first PDCCH or the second PDCCH.

[0143] As an example, the act of listening to a PDCCH includes: determining whether there is a DCI on the search space corresponding to the PDCCH through synchronization detection, where the PDCCH is the first PDCCH or the second PDCCH.

[0144] As an example, the act of monitoring a PDCCH includes: determining, through waveform detection, whether there is a DCI in the search space corresponding to the PDCCH, where the PDCCH is the first PDCCH or the second PDCCH.

[0145] As an example, the act of monitoring a PDCCH includes: determining, through maximum likelihood detection, whether there is a DCI in the search space corresponding to the PDCCH, where the PDCCH is the first PDCCH or the second PDCCH.

[0146] As an example, the act of monitoring the first PDCCH includes: monitoring PDCCH candidates of a DCI whose CRC is scrambled by the source identifier.

[0147] As an example, the act of monitoring the second PDCCH includes: monitoring PDCCH candidates of a DCI whose CRC is scrambled by the target identifier.

[0148] As an example, the act of monitoring the first PDCCH is used to determine a DCI whose CRC is scrambled by the source identifier.

[0149] As an example, the act of monitoring the second PDCCH is used to determine a DCI whose CRC is scrambled by the target identifier.

[0150] As an example, the first PDCCH carries at least one DCI.

[0151] As an example, the first PDCCH includes a DCI.

[0152] As an example, the first PDCCH includes a PDCCH candidate.

[0153] As an example, the CRC of the DCI on the first PDCCH is scrambled by the source identifier.

[0154] As an example, the first PDCCH includes a PDCCH candidate of a DCI whose CRC is scrambled by the source identifier.

[0155] As an example, the first PDCCH includes a PDCCH transmission scrambled by the source identifier.

[0156] As an example, the first PDCCH includes a PDCCH transmission scrambled by the source identifier, and the PDCCH transmission includes a DCI.

[0157] As an example, the first PDCCH includes a PDCCH search space.

[0158] As an example, the first PDCCH includes a set of PDCCH search spaces.

[0159] As an example, the first PDCCH includes at least one PDCCH candidate.

[0160] As an example, the first PDCCH includes a set of CSS (Common search space).

[0161] As an example, the first PDCCH includes a set of USS (UE-specific search space).

[0162] As an example, the first PDCCH is a set of USS.

[0163] As an example, the first PDCCH is a Type3-PDCCH CSS set.

[0164] As an example, the first PDCCH is a Type3A-PDCCH CSS set.

[0165] As an example, the first PDCCH is a Type4-PDCCH CSS set.

[0166] As an example, the first PDCCH does not include a Type0-PDCCH CSS set.

[0167] As an example, the first PDCCH does not include a Type0A-PDCCH CSS set.

[0168] As an example, the first PDCCH does not include a Type1-PDCCH CSS set.

[0169] As an example, the first PDCCH does not include a Type2-PDCCH CSS set.

[0170] As an example, the first PDCCH is associated with a search space, the search space is associated with a CORESET, and the CORESET is associated with the first downlink RS resource.

[0171] As an example, the phrase the first PDCCH is associated with a first downlink RS resource includes: the first PDCCH includes a PDCCH dedicated to the first node.

[0172] As an example, the phrase the first PDCCH is associated with a first downlink RS resource includes: the first PDCCH is associated with a time / frequency control resource set (CORESET), and the first downlink RS resource is included in the CORESET.

[0173] As an example, the phrase the first PDCCH is associated with a first downlink RS resource includes: the first PDCCH is associated with a search space, the search space corresponds to a CORESET, and the first downlink RS resource is included in the CORESET.

[0174] As an example, the first downlink RS resource is used to determine a CORESET for searching for downlink control information.

[0175] As an example, the first downlink RS resource corresponds to a CORESET identifier.

[0176] As an example, the first downlink RS resource corresponds to a search space identifier.

[0177] As an example, the first downlink RS resource is associated with a CORESET.

[0178] As an example, the first downlink RS resource corresponds to a Transmission Configuration Indication (TCI) state identifier.

[0179] As an example, the first downlink RS resource is associated with a TCI state.

[0180] As an example, the first downlink RS resource includes at least one Reference Signal.

[0181] As an example, the first downlink RS resource includes at least one Channel State Information Reference Signal (CSI-RS).

[0182] As an example, the first downlink RS resource includes at least one SSB (Synchronization Signal Block).

[0183] As an example, the first downlink RS resource includes a CSI-RS indexed by NZP-CSI-RS-ResourceId.

[0184] As an example, the first downlink RS resource includes an SSB indexed by SSB-Index.

[0185] As an example, the phrase the first downlink RS resource is associated with a first PCI includes: the first downlink RS resource is used to determine a CORESET for searching for downlink control information in a cell identified by the first PCI.

[0186] As an example, the phrase the first downlink RS resource is associated with a first PCI includes: the first downlink RS resource is configured for the cell identified by the first PCI.

[0187] As an example, the phrase the first downlink RS resource is associated with a first PCI includes: the first downlink RS resource is dedicated to the cell identified by the first PCI.

[0188] As an example, the phrase the first downlink RS resource is associated with a first PCI includes: any reference signal included in the first downlink RS resource is transmitted by a TRP in the cell identified by the first PCI.

[0189] As an example, the phrase the first downlink RS resource is associated with a first PCI includes: any reference signal included in the first downlink RS resource corresponds to a beam of a TRP in the cell identified by the first PCI.

[0190] As an example, the phrase the second signaling includes signaling below the RRC layer includes: the second signaling is a MAC layer signaling.

[0191] As an example, the phrase the second signaling includes signaling below the RRC layer includes: the second signaling is a physical layer signaling.

[0192] As an example, the phrase the second signaling includes signaling below the RRC layer includes: the second signaling is generated at the MAC layer.

[0193] As an example, the phrase the second signaling includes signaling below the RRC layer includes: the second signaling is generated at the physical layer.

[0194] As an example, the phrase the second signaling includes signaling below the RRC layer includes: the second signaling is not one of CCCH SDU or DCCH SDU or DTCH SDU or BCCH SDU or PCCH SDU.

[0195] As an example, the second signaling is used to determine the execution of L1 / L2-centered inter-cell mobility.

[0196] As an example, the second signaling is used to determine the radio resources of the cell identified by the second PCI.

[0197] As an example, the second signaling includes a MAC PDU (Protocol Data Unit).

[0198] As an example, the second signaling includes a MAC SDU (Service Data Unit).

[0199] As an example, the second signaling includes a MAC CE (Control Element).

[0200] As an example, the second signaling includes a MAC subheader.

[0201] As an example, the second signaling includes a MAC domain.

[0202] As an example, the second signaling includes a PDCCH.

[0203] As an example, the second signaling includes a DCI.

[0204] As an example, the phrase the second signaling is used to indicate the second PCI includes: the second signaling explicitly indicates the second PCI.

[0205] As an example, the phrase the second signaling is used to indicate the second PCI includes: the second signaling implicitly indicates the second PCI.

[0206] As an example, the phrase the second signaling is used to indicate the second PCI includes: the second signaling is associated with the second PCI.

[0207] As an embodiment, the phrase the second signaling is used to indicate the second PCI includes: the second signaling is used to determine the radio resources of the cell identified by the second PCI.

[0208] As an embodiment, the phrase the second signaling is used to indicate the second PCI includes: the second signaling is used to determine to monitor the PDCCH for the cell identified by the second PCI.

[0209] As an embodiment, the phrase the second signaling is used to indicate the second PCI includes: the second signaling is used to determine to perform L1 / L2-centered inter-cell mobility.

[0210] As an embodiment, the second signaling includes a CORESET ID field, and the CORESET ID field is used to indicate a CORESET.

[0211] As an embodiment, the second signaling includes a CORESET ID field, and the CORESET ID field is used to indicate a CORESET, and the one CORESET is associated with the cell identified by the second PCI.

[0212] As an embodiment, the second signaling includes a TCI State ID field, and the TCI State ID field is used to indicate a TCI state.

[0213] As an embodiment, the second signaling includes a TCI State ID field, and the TCI State ID field is used to indicate a TCI state, and the one TCI state is associated with the cell identified by the second PCI.

[0214] As an embodiment, the second signaling includes a TCI State ID field, and the TCI State ID field is used to indicate a TCI state, and the one TCI state is associated with the second downlink RS resource; wherein, the second downlink RS resource is associated with the second PCI.

[0215] As an embodiment, the second signaling includes a Serving Cell ID field, and the Serving Cell ID field indicates the identifier of the serving cell.

[0216] As an embodiment, the second signaling includes a first field, and the first field indicates the second PCI, and the first field is not one of the Serving Cell ID field, the CORESET ID field, and the TCI State ID field.

[0217] As a sub - embodiment of this embodiment, the first domain is set to the second PCI.

[0218] As a sub - embodiment of this embodiment, the first domain is set to the index of the second PCI.

[0219] As a sub - embodiment of this embodiment, the first domain is set to a first configuration index, the first configuration index corresponding to the cell identified by the second PCI, and the first configuration index is a non - negative integer.

[0220] As an accessory embodiment of this sub - embodiment, the first configuration index is configured by an RRC message.

[0221] As an accessory embodiment of this sub - embodiment, the first configuration index is one of the indexes in an index set.

[0222] As a subordinate embodiment of this accessory embodiment, one of the indexes in the index set is not less than 0 and the configuration index is not greater than 7.

[0223] As a subordinate embodiment of this accessory embodiment, the number of indexes in the index set corresponds to the number of candidate cells for the L1 / L2 - centered inter - cell mobility configured.

[0224] As a sub - embodiment of this embodiment, the first domain indicates the target identifier.

[0225] As a sub - embodiment of this embodiment, the first domain is set to the target identifier, and the target identifier is associated with the second PCI.

[0226] As an embodiment, the second signaling includes at least one of the Serving Cell ID domain, or the CORESET ID domain, or the TCI State ID domain, or the first domain.

[0227] As a sub - embodiment of this embodiment, the second signaling consists of a Serving Cell ID domain, a CORESET ID domain, and a TCI State ID domain.

[0228] As a sub - embodiment of this embodiment, the second signaling consists of a Serving Cell ID domain, two CORESET ID domains, and a TCI State ID domain.

[0229] As a sub - embodiment of this embodiment, the second signaling is composed of one Serving Cell ID field, one CORESET ID field, one TCI State ID field, and one first field.

[0230] As a sub - embodiment of this embodiment, the second signaling is composed of one Serving Cell ID field, two CORESET ID fields, one TCI State ID field, and one first field.

[0231] As an embodiment, the phrase "as a response to the behavior of receiving the second signaling" includes: when the second signaling is received.

[0232] As an embodiment, the phrase "as a response to the behavior of receiving the second signaling" includes: if the second signaling is received.

[0233] As an embodiment, the phrase "as a response to the behavior of receiving the second signaling" includes: if an indication that the second signaling is received is received at the MAC layer.

[0234] As an embodiment, the phrase "as a response to the behavior of receiving the second signaling" includes: as a subsequent action after the second signaling is received.

[0235] As an embodiment, the behavior of receiving the second signaling triggers the behavior of listening to the second PDCCH and giving up listening to the first PDCCH.

[0236] As an embodiment, the second PDCCH carries at least one DCI.

[0237] As an embodiment, the second PDCCH includes a DCI (Downlink Control Information).

[0238] As an embodiment, the second PDCCH includes a PDCCH candidate.

[0239] As an embodiment, the CRC of the DCI on the second PDCCH is scrambled by the target identifier.

[0240] As an embodiment, the second PDCCH includes a PDCCH candidate of a DCI whose CRC is scrambled by the target identifier.

[0241] As an embodiment, the second PDCCH includes a PDCCH transmission scrambled by the target identifier.

[0242] As an example, the second PDCCH includes a PDCCH transmission scrambled by the target identifier, and the PDCCH transmission includes a DCI.

[0243] As an example, the second PDCCH includes a PDCCH search space.

[0244] As an example, the second PDCCH includes a set of PDCCH search spaces.

[0245] As an example, the second PDCCH includes at least one PDCCH candidate.

[0246] As an example, the second PDCCH includes a CSS set.

[0247] As an example, the second PDCCH includes a USS set.

[0248] As an example, the second PDCCH is a USS set.

[0249] As an example, the second PDCCH is a Type3-PDCCH CSS set.

[0250] As an example, the second PDCCH is a Type3A-PDCCH CSS set.

[0251] As an example, the second PDCCH is a Type4-PDCCH CSS set.

[0252] As an example, the second PDCCH does not include a Type0-PDCCH CSS set.

[0253] As an example, the second PDCCH does not include a Type0A-PDCCH CSS set.

[0254] As an example, the second PDCCH does not include a Type1-PDCCH CSS set.

[0255] As an example, the second PDCCH does not include a Type2-PDCCH CSS set.

[0256] As an example, the second PDCCH is associated with a search space, the search space is associated with a CORESET, and the CORESET is associated with the second downlink RS resource.

[0257] As an example, a search space associated with the first PDCCH is different from a search space associated with the second PDCCH.

[0258] As an example, a CORESET associated with the first PDCCH is different from a CORESET associated with the second PDCCH.

[0259] As an example, a CORESET associated with the first PDCCH is the same as a CORESET associated with the second PDCCH.

[0260] As an example, the phrase the second PDCCH is associated with a second downlink RS resource includes: the second PDCCH includes a PDCCH dedicated to the first node.

[0261] As an example, the phrase the second PDCCH is associated with a second downlink RS resource includes: the second PDCCH is associated with a time / frequency control resource set (CORESET), and the second downlink RS resource is included in the CORESET.

[0262] As an example, the phrase the second PDCCH is associated with a second downlink RS resource includes: the second PDCCH is associated with a search space, the search space corresponds to a CORESET, and the second downlink RS resource is included in the CORESET.

[0263] As an example, the second downlink RS resource is used to determine a time / frequency control resource set for searching for downlink control information.

[0264] As an example, the second downlink RS resource corresponds to a CORESET identifier.

[0265] As an example, the second downlink RS resource is associated with a CORESET.

[0266] As an example, the second downlink RS resource corresponds to a TCI State identifier.

[0267] As an example, the second downlink RS resource is associated with a TCI state.

[0268] As an example, the second downlink RS resource includes at least one ReferenceSignal.

[0269] As an example, the second downlink RS resource includes at least one CSI-RS.

[0270] As an example, the second downlink RS resource includes at least one SSB.

[0271] As an example, the second downlink RS resource includes a CSI-RS indexed by NZP-CSI-RS-ResourceId.

[0272] As an example, the second downlink RS resource includes an SSB indexed by SSB-Index.

[0273] As an example, the phrase the second downlink RS resource is associated with the second PCI includes: the second downlink RS resource is used to determine a time-frequency control resource set for searching for downlink control information in the cell identified by the second PCI.

[0274] As an example, the phrase the second downlink RS resource is associated with the second PCI includes: the second downlink RS resource is configured for the cell identified by the second PCI.

[0275] As an example, the phrase the second downlink RS resource is associated with the second PCI includes: the second downlink RS resource is dedicated to the cell identified by the second PCI.

[0276] As an example, the phrase the second downlink RS resource is associated with the second PCI includes: any reference signal included in the second downlink RS resource is transmitted by a TRP in the cell identified by the second PCI.

[0277] As an example, the phrase the second downlink RS resource is associated with the second PCI includes: any reference signal included in the second downlink RS resource corresponds to a beam of a TRP in the cell identified by the second PCI.

[0278] As an example, the act of listening for the second PDCCH and abandoning listening for the first PDCCH includes: starting to listen for the second PDCCH and not continuing to listen for the first PDCCH.

[0279] As an example, the act of listening for the second PDCCH and abandoning listening for the first PDCCH includes: starting to listen for the second PDCCH and not being expected to continue listening for the first PDCCH.

[0280] As an example, the phrase that the first PDCCH is scrambled using the source identifier includes: the CRC of the first PDCCH is scrambled using the source identifier.

[0281] As an example, the phrase that the first PDCCH is scrambled using the source identifier includes: the source identifier is used to generate the scrambling sequence of the first PDCCH.

[0282] As an example, the phrase that the first PDCCH is scrambled using the source identifier includes: the source identifier is used to generate the initial scrambling sequence of the first PDCCH.

[0283] As an example, the phrase that the second PDCCH is scrambled using the target identifier includes: the CRC of the second PDCCH is scrambled using the target identifier.

[0284] As an example, the phrase that the second PDCCH is scrambled using the target identifier includes: the target identifier is used to generate the scrambling sequence of the second PDCCH.

[0285] As an example, the phrase that the second PDCCH is scrambled using the target identifier includes: the target identifier is used to generate the initial scrambling sequence of the second PDCCH.

[0286] As an example, the phrase that the source identifier and the target identifier are different includes: the names of the source identifier and the target identifier are different.

[0287] As an example, the phrase that the source identifier and the target identifier are different includes: the names of the source identifier and the target identifier are the same, but the values of the source identifier and the target identifier are different.

[0288] As an example, the phrase that the source identifier and the target identifier are different includes: the names of the source identifier and the target identifier are different, and the values of the source identifier and the target identifier are different.

[0289] As an example, the phrase that the source identifier and the target identifier are different includes: the values of the source identifier and the target identifier are different.

[0290] As an example, the value of a RNTI includes an integer.

[0291] As an example, the value of a RNTI is an integer that is not less than 0 and not greater than 65535.

[0292] As an example, the value of the one RNTI includes RNTI-Value.

[0293] As an example, the value of the one RNTI is a hexadecimal integer.

[0294] As an example, the value of the one RNTI is a hexadecimal integer, and the value of the one RNTI is not less than 0001, and the value of the one RNTI is not greater than FFF2.

[0295] As an example, the one RNTI is C-RNTI.

[0296] As an example, the one RNTI is MCS-C-RNTI.

[0297] As an example, the source identifier is a C-RNTI, and the target identifier is a C-RNTI.

[0298] As an example, the source identifier is an MCS-C-RNTI, and the target identifier is a C-RNTI.

[0299] As an example, the source identifier is a C-RNTI, and the target identifier is an MCS-C-RNTI.

[0300] As an example, the name of the source identifier is C-RNTI, and the name of the target identifier is not C-RNTI.

[0301] As an example, the source identifier is the identifier of the first node in the first cell, and the target identifier is the identifier of the first node in the second cell.

[0302] As an example, the source identifier is the identifier of the first node in the second cell, and the target identifier is the identifier of the first node in the first cell.

[0303] As an example, the source identifier is the identifier of the first node in the cell identified by the first PCI, and the target identifier is the identifier of the first node in the cell identified by the second PCI.

[0304] As an example, the source identifier is the C-RNTI of the first node in the cell identified by the first PCI; the target identifier is the C-RNTI of the first node in the cell identified by the second PCI.

[0305] As an embodiment, the types of the source identifier and the target identifier are the same.

[0306] As an embodiment, the types of the source identifier and the target identifier are different.

[0307] As an embodiment, the name of the source identifier is not a C-RNTI, and the name of the target identifier is a C-RNTI.

[0308] As an embodiment, the source identifier is the RNTI of the first node in the PCell.

[0309] As an embodiment, the source identifier is a C-RNTI.

[0310] As an embodiment, the source identifier is the C-RNTI of the first node for the MCG.

[0311] As an embodiment, the PCI of a serving cell configured for the first node is the same as the first PCI or the second PCI.

[0312] As a sub-embodiment of this embodiment, the PCI of a serving cell configured for the first node is the same as the first PCI.

[0313] As a sub-embodiment of this embodiment, the PCI of a serving cell configured for the first node is the same as the second PCI.

[0314] As a sub-embodiment of this embodiment, the PCI of a serving cell configured for the first node is the same as the first PCI, and the PCI of any serving cell configured for the first node is different from the second PCI.

[0315] As a sub-embodiment of this embodiment, the PCI of a serving cell configured for the first node is the same as the second PCI, and the PCI of any serving cell configured for the first node is different from the first PCI.

[0316] As an embodiment, the first PDCCH indicates the scheduling information of the second signaling.

[0317] As an embodiment, a PDCCH indicates the scheduling information of a PUSCH, and the PDCCH is the first PDCCH or the second PDCCH.

[0318] As an embodiment, a PDCCH indicates the scheduling information of a PDSCH, and the PDCCH is the first PDCCH or the second PDCCH.

[0319] As an example, the scheduling information includes at least one of a time domain position, a frequency domain position, a Modulation and Coding Scheme (MCS), a Redundancy Version (RV), a New Data Indicator (NDI), or a HARQ process identity.

[0320] As an example, the time domain position includes resource allocation in the time domain.

[0321] As an example, the time domain position includes slot allocation.

[0322] As an example, the time domain position includes symbol allocation.

[0323] As an example, the time domain position is calculated according to Section 5.1.2.1 in TS 38.214.

[0324] As an example, the time domain position is calculated according to a field in the DCI corresponding to the one PDCCH, and the one field includes the Time domain resource assignment field, and the one PDCCH is the first PDCCH or the second PDCCH.

[0325] As an example, the time domain position is determined according to the Time domain resource assignment field.

[0326] As an example, the time domain position is determined according to the PDSCH-TimeDomainResourceAllocation field.

[0327] As an example, the time domain position is determined according to Table 5.1.2.1.1-1 in TS 38.214.

[0328] As an example, a field in the DCI corresponding to the one PDCCH indicates an m value, and the m value is used to determine the time domain position, and the m value indicates the row index m + 1 of Table 5.1.2.1.1-1 in TS 38.214, and the one PDCCH is the first PDCCH or the second PDCCH.

[0329] As an example, the Time domain resource assignment field indicates the m value.

[0330] As an example, the row index m+1 is used to determine at least one of the slot offset K0, or the start and length indicator (SLIV), or the direct start symbol S, or the allocation length L, or the PDSCH mapping type.

[0331] As an example, the frequency domain position includes resource allocation in the frequency domain.

[0332] As an example, the frequency domain position is calculated according to Section 5.1.2.2.2 of TS 38.214.

[0333] As an example, the frequency domain position is calculated according to a field in the DCI corresponding to the one PDCCH, the one field includes the Frequency domain resource assignment field, and the one PDCCH is the first PDCCH or the second PDCCH.

[0334] As an example, the frequency domain position is determined according to the downlink resource allocation mode 0 (type0).

[0335] As an example, the frequency domain position is determined according to the downlink resource allocation mode 1 (type1).

[0336] As an example, the frequency domain position is determined by a bitmap that indicates resource block groups (RBGs), and one of the resource block groups includes a set of consecutive virtual resource blocks.

[0337] As an example, a field in the DCI corresponding to the one PDCCH indicates a resource indication value (RIV), the RIV indicates the start of the virtual resource block (RBstart) and the length in terms of consecutively allocated resource blocks (LRBs), and the one PDCCH is the first PDCCH or the second PDCCH.

[0338] As an example, the Frequency domain resource assignment field indicates the RIV.

[0339] As an example, the MCS is determined according to a field in the DCI corresponding to the one PDCCH, the one field includes a modulation and coding scheme field (IMCS), and the one PDCCH is the first PDCCH or the second PDCCH.

[0340] As an example, the MCS includes at least one of a modulation order (Qm) or a target code rate (R).

[0341] As an example, the NDI is determined according to a field in the DCI corresponding to the one PDCCH, the one field includes an NDI field, and the one PDCCH is the first PDCCH or the second PDCCH.

[0342] As an example, the HARQ process number includes HARQ process number.

[0343] As an example, the HARQ process number is determined according to a field in the DCI corresponding to the one PDCCH, the one field includes a HARQ process number field, and the one PDCCH is the first PDCCH or the second PDCCH.

[0344] As an example, the RV is determined according to a field in the DCI corresponding to the one PDCCH, the one field includes a redundancy version field (rv), and the one PDCCH is the first PDCCH or the second PDCCH.

[0345] As an example, one of the cell identified by the first PCI and the cell identified by the second PCI is configured as the serving cell of the first node.

[0346] As an example, the cell identified by the first PCI is the first cell, and the cell identified by the second PCI is the second cell.

[0347] As an embodiment, the source identifier is the identifier of the first node in the cell identified by the first PCI; the target identifier is the identifier of the first node in the cell identified by the second PCI.

[0348] As an embodiment, the first PCI and the second PCI are different.

[0349] As an embodiment, in at least one time slot before the action of receiving the second signaling and at least one time slot after the action of receiving the second signaling, the first node always monitors the BCCH on the cell identified by the first PCI.

[0350] As an embodiment, in at least one time slot before the action of receiving the second signaling and at least one time slot after the action of receiving the second signaling, the first node always has the system information (SI) on the cell identified by the first PCI.

[0351] As an embodiment, the meaning of "associated" includes: being addressed to.

[0352] As an embodiment, the meaning of "associated" includes: being related to.

[0353] As an embodiment, the meaning of "associated" includes: associate.

[0354] As an embodiment, the meaning of "associated" includes: being relevant.

[0355] As an embodiment, the meaning that A1 is associated with B1 includes: B1 can be obtained through A1.

[0356] As an embodiment, the meaning that A1 is associated with B1 includes: A1 can be obtained through B1.

[0357] As an embodiment, the meaning that A1 is associated with B1 includes: A1 is used to determine B1.

[0358] As an embodiment, the meaning that A1 is associated with B1 includes: B1 is used to determine A1.

[0359] As an embodiment, the meaning that A1 is associated with B1 includes: there is a one-to-one correspondence between A1 and B1.

[0360] As an embodiment, the meaning that A1 is associated with B1 includes: A1 includes B1.

[0361] As an embodiment, the meaning that A1 is associated with B1 includes: B1 includes A1.

[0362] As an example, the meaning that A1 is associated with B1 includes: A1 and B1 are related.

[0363] As an example, the meaning that A1 is associated with B1 includes: A1 and B1 correspond to the same parameter.

[0364] As an example, the meaning that A1 is associated with B1 includes: A1 and B1 correspond to the same identifier.

[0365] Example 2

[0366] Example 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in the appendix Figure 2 shown. Appendix Figure 2Describes the network architecture 200 of a 5G NR (New Radio) / LTE (Long-Term Evolution) / LTE-A (Long-Term Evolution Advanced) system. The 5G NR / LTE / LTE-A network architecture 200 may be referred to as 5GS (5G System) / EPS (Evolved Packet System) 200 or some other suitable term. The 5GS / EPS 200 includes at least one of UE (User Equipment) 201, RAN (Radio Access Network) 202, 5GC (5G Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet service 230. The 5GS / EPS may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown, the 5GS / EPS 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 that provide circuit-switched services or other cellular networks. The RAN includes node 203 and other nodes 204. Node 203 provides user and control plane protocol termination towards UE 201. Node 203 may be connected to other nodes 204 via the Xn interface (e.g., backhaul) / X2 interface. Node 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 (Transmit Receive Point), or some other suitable term. Node 203 provides an access point to the 5GC / EPC 210 for UE 201. Examples of UE 201 include cellular phones, smartphones, session initiation protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband Internet of Things devices, machine type communication devices, land vehicles, automobiles, wearable devices, or any other similar functional device. Those skilled in the art may also refer to UE 201 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, handset, user agent, mobile client, client, or some other suitable term.The node 203 is connected to the 5GC / EPC 210 via the S1 / NG interface. The 5GC / EPC 210 includes an MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMFs 214, an S-GW (Service Gateway) / UPF (User Plane Function) 212, and a P-GW (Packet Date Network Gateway) / UPF 213. The MME / AMF / SMF 211 is a control node that processes the signaling between the UE 201 and the 5GC / EPC 210. Generally, the MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocal) packets are transmitted through the S-GW / UPF 212, which is itself connected to the P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF 213 is connected to the Internet service 230. The Internet service 230 includes operator-corresponding Internet protocol services, which may specifically include the Internet, an intranet, an IMS (IP Multimedia Subsystem), and packet-switched streaming services.

[0367] As an embodiment, the UE 201 corresponds to the first node in the present application.

[0368] As an embodiment, the UE 201 is a user equipment (UE).

[0369] As an embodiment, the UE 201 is a terminal.

[0370] As an embodiment, the node 203 corresponds to the second node in the present application.

[0371] As an embodiment, the node 203 is a base station (BS).

[0372] As an embodiment, the node 203 is a base transceiver station (BTS).

[0373] As an embodiment, the node 203 is a Node B (NB).

[0374] As an embodiment, the node 203 is a gNB.

[0375] As an embodiment, the node 203 is an eNB.

[0376] As an embodiment, the node 203 is an ng-eNB.

[0377] As an embodiment, the node 203 is an en-gNB.

[0378] As an embodiment, the node 203 is a user equipment.

[0379] As an embodiment, the node 203 is a relay.

[0380] As an embodiment, the node 203 is a Gateway.

[0381] As an embodiment, the node 203 includes at least one TRP.

[0382] As an embodiment, the node 204 corresponds to the third node in the present application.

[0383] As an embodiment, the node 204 corresponds to the fourth node in the present application.

[0384] As an embodiment, the node 204 is a Base Station (BS).

[0385] As an embodiment, the node 204 is a BS.

[0386] As an embodiment, the node 204 is a BTS.

[0387] As an embodiment, the node 204 is an NB.

[0388] As an embodiment, the node 204 is a gNB.

[0389] As an embodiment, the node 204 is an eNB.

[0390] As an embodiment, the node 204 is an ng-eNB.

[0391] As an embodiment, the node 204 is an en-gNB.

[0392] As an embodiment, the node 204 is a user equipment.

[0393] As an example, the node 204 is a relay.

[0394] As an example, the node 204 is a Gateway.

[0395] As an example, the node 204 includes at least one TRP.

[0396] As an example, the user equipment supports the transmission of a Non-Terrestrial Network (NTN).

[0397] As an example, the user equipment supports the transmission of a Terrestrial Network.

[0398] As an example, the user equipment supports the transmission in a network with large latency differences.

[0399] As an example, the user equipment supports Dual Connection (DC) transmission.

[0400] As an example, the user equipment includes an aircraft.

[0401] As an example, the user equipment includes a vehicle-mounted terminal.

[0402] As an example, the user equipment includes a ship.

[0403] As an example, the user equipment includes an Internet of Things (IoT) terminal.

[0404] As an example, the user equipment includes a terminal of the industrial Internet of Things.

[0405] As an example, the user equipment includes a device that supports low-latency and high-reliability transmission.

[0406] As an example, the user equipment includes a test device.

[0407] As an example, the user equipment includes a signaling tester.

[0408] As an example, the user equipment supports NR.

[0409] As an example, the user equipment supports UTRA.

[0410] As an example, the user equipment supports EUTRA.

[0411] As an example, the base station device supports transmission in a non-terrestrial network.

[0412] As an example, the base station device supports transmission in a large delay difference network.

[0413] As an example, the base station device supports transmission in a terrestrial network.

[0414] As an example, the base station device includes a macro cellular base station.

[0415] As an example, the base station device includes a micro cell base station.

[0416] As an example, the base station device includes a pico cell base station.

[0417] As an example, the base station device includes a femtocell.

[0418] As an example, the base station device includes a base station device that supports large delay differences.

[0419] As an example, the base station device includes a flying platform device.

[0420] As an example, the base station device includes a satellite device.

[0421] As an example, the base station device includes a TRP (Transmitter Receiver Point).

[0422] As an example, the base station device includes a CU (Centralized Unit).

[0423] As an example, the base station device includes a DU (Distributed Unit).

[0424] As an example, the base station device includes a test device.

[0425] As an example, the base station device includes a signaling tester.

[0426] As an example, the base station device includes an IAB (Integrated Access and Backhaul)-node.

[0427] As an example, the base station device includes an IAB-donor.

[0428] As an embodiment, the base station device includes an IAB-donor-CU.

[0429] As an embodiment, the base station device includes an IAB-donor-DU.

[0430] As an embodiment, the base station device includes an IAB-DU.

[0431] As an embodiment, the base station device includes an IAB-MT.

[0432] As an embodiment, the relay includes a relay.

[0433] As an embodiment, the relay includes an L3 relay.

[0434] As an embodiment, the relay includes an L2 relay.

[0435] As an embodiment, the relay includes a router.

[0436] As an embodiment, the relay includes a switch.

[0437] As an embodiment, the relay includes a user equipment.

[0438] As an embodiment, the relay includes a base station device.

[0439] As an embodiment, at least one of the connection between the UE201 and the node 203 and the connection between the UE201 and the node 204 exists.

[0440] As a sub-embodiment of this embodiment, the connection between the UE201 and the node 203 exists, and the connection between the UE201 and the node 204 does not exist.

[0441] As a sub-embodiment of this embodiment, the connection between the UE201 and the node 203 does not exist, and the connection between the UE201 and the node 204 exists.

[0442] As a sub-embodiment of this embodiment, the connection between the UE201 and the node 203 exists, and the connection between the UE201 and the node 204 exists.

[0443] Example 3

[0444] Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to the present application, as shown in the appendix Figure 3 as shown. Figure 3FIG. is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300. Figure 3 The radio protocol architecture for the control plane 300 is shown with three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. The L1 layer will be referred to as PHY 301 herein. Layer 2 (L2 layer) 305 is above PHY 301 and includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets and provides handover support. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3 layer) of the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling. The radio protocol architecture of the user plane 350 includes Layer 1 (L1 layer) and Layer 2 (L2 layer). In the user plane 350, the radio protocol architecture is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355. However, the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 also includes an SDAP (Service Data Adaptation Protocol) sublayer 356. The SDAP sublayer 356 is responsible for mapping QoS flows and data radio bearers (DRBs) to support service diversity.

[0445] As an example, the Figure 3 radio protocol architecture in the appendix is applicable to the first node described in this application.

[0446] As an example, the Figure 3The wireless protocol architecture in [reference] is applicable to the second node in this application.

[0447] As an example, append Figure 3 The wireless protocol architecture in [reference] is applicable to the third node in this application.

[0448] As an example, append Figure 3 The wireless protocol architecture in [reference] is applicable to the fourth node in this application.

[0449] As an example, the first signaling in this application is generated by the RRC306.

[0450] As an example, the first signaling in this application is generated by the MAC302 or MAC352.

[0451] As an example, the first signaling in this application is generated by the PHY301 or PHY351.

[0452] As an example, the second signaling in this application is generated by the MAC302 or MAC352.

[0453] As an example, the second signaling in this application is generated by the PHY301 or PHY351.

[0454] As an example, the first PDCCH in this application is generated by the PHY301 or PHY351.

[0455] As an example, the second PDCCH in this application is generated by the PHY301 or PHY351.

[0456] As an example, the first uplink grant in this application is generated by the MAC302 or MAC352.

[0457] As an example, the first uplink grant in this application is generated by the PHY301 or PHY351.

[0458] As an example, the second uplink grant in this application is generated by the MAC302 or MAC352.

[0459] As an example, the second uplink grant in this application is generated by the PHY301 or PHY351.

[0460] As an example, the first type of reference signal in this application is generated by the PHY301 or PHY351.

[0461] As an example, the first wireless signal in the present application is generated by the MAC302 or MAC352.

[0462] As an example, the first wireless signal in the present application is generated by the PHY301 or PHY351.

[0463] As an example, the second wireless signal in the present application is generated by the MAC302 or MAC352.

[0464] As an example, the second wireless signal in the present application is generated by the PHY301 or PHY351.

[0465] Example 4

[0466] Example 4 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in the appendix Figure 4 as shown. Figure 4 It is a block diagram of a first communication device 450 and a second communication device 410 that communicate with each other in an access network.

[0467] The first communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter / receiver 454, and an antenna 452.

[0468] The second communication device 410 includes a controller / processor 475, a memory 476, a receive processor 470, a transmit processor 416, a multi-antenna receive processor 472, a multi-antenna transmit processor 471, a transmitter / receiver 418, and an antenna 420.

[0469] In the transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements the functionality of the L2 layer. In the transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation for the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmission of lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, and mapping of signal constellations based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding on the encoded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to subcarriers, multiplexes with reference signals (e.g., pilots) in the time domain and / or frequency domain, and then uses the inverse fast Fourier transform (IFFT) to generate a physical channel carrying a time-domain multi-carrier symbol stream. Subsequently, the multi-antenna transmit processor 471 performs transmit analog precoding / beamforming operations on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream and then provides it to a different antenna 420.

[0470] In the transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives signals via its respective antenna 452. Each receiver 454 recovers the information modulated onto the radio frequency carrier and converts the radio frequency stream into a baseband multi-carrier symbol stream for providing to the receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receive processor 458 performs receive analog precoding / beamforming operations on the baseband multi-carrier symbol stream from the receivers 454. The receive processor 456 uses the fast Fourier transform (FFT) to convert the baseband multi-carrier 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 receive processor 456, where the reference signal will be used for channel estimation, and the data signal recovers any spatial streams destined for the first communication device 450 after multi-antenna detection in the multi-antenna receive processor 458. The symbols on each spatial stream are demodulated and recovered in the receive processor 456, and soft decisions are generated. Subsequently, the receive processor 456 decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel. Subsequently, the upper layer data and control signals are provided to the controller / processor 459. The controller / processor 459 implements the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program code and data. The memory 460 may be referred to as a computer-readable medium. In the transmission from the second communication device 410 to the second communication device 450, the controller / processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover upper layer data packets from the core network. Subsequently, the upper layer data packets are provided to all protocol layers above the L2 layer. Various control signals may also be provided to the L3 for L3 processing.

[0471] In the transmission from the first communication device 450 to the second communication device 410, at the first communication device 450, a data source 467 is used to provide upper layer data packets to a controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmit function described at the second communication device 410 in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, and implements L2 layer functions for both the user plane and the control plane. The controller / processor 459 is also responsible for retransmission of lost packets and signaling to the second communication device 410. A transmit processor 468 performs modulation mapping and channel coding processing, and a multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Subsequently, the transmit processor 468 modulates the generated spatial streams into multi-carrier / single-carrier symbol streams, which are then provided to different antennas 452 via a transmitter 454 after an analog precoding / beamforming operation in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and then provides it to the antenna 452.

[0472] In the transmission from the first communication device 450 to the second communication device 410, the functions at the second communication device 410 are similar to the receive functions described at the first communication device 450 in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 jointly implement L1 layer functions. A controller / processor 475 implements 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 a computer-readable medium. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the UE 450. The upper layer data packets from the controller / processor 475 may be provided to the core network.

[0473] As an example, the first 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 together with the at least one processor, and the first communication device 450 is at least: receiving first signaling that indicates a target identifier; monitoring a first PDCCH that is associated with a first downlink RS resource, the first downlink RS resource being associated with a first PCI; receiving second signaling that is used to indicate a second PCI; in response to receiving the second signaling as the action, monitoring a second PDCCH and ceasing to monitor the first PDCCH, the second PDCCH being associated with a second downlink RS resource, the second downlink RS resource being associated with the second PCI; wherein the first signaling includes an RRC message; the second signaling includes signaling below the RRC layer; the first PDCCH is scrambled with a source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; the source identifier and the target identifier are each an RNTI.

[0474] As an example, the first communication device 450 includes: a memory storing a computer-readable instruction program that, when executed by at least one processor, causes actions including: receiving first signaling that indicates a target identifier; monitoring a first PDCCH that is associated with a first downlink RS resource, the first downlink RS resource being associated with a first PCI; receiving second signaling that is used to indicate a second PCI; in response to receiving the second signaling as the action, monitoring a second PDCCH and ceasing to monitor the first PDCCH, the second PDCCH being associated with a second downlink RS resource, the second downlink RS resource being associated with the second PCI; wherein the first signaling includes an RRC message; the second signaling includes signaling below the RRC layer; the first PDCCH is scrambled with a source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; the source identifier and the target identifier are each an RNTI.

[0475] As an embodiment, the second 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 second communication device 410 is at least: sending a first signaling, the first signaling indicating a target identifier; sending a first PDCCH, the first PDCCH being associated with a first downlink RS resource, the first downlink RS resource being associated with a first PCI; sending a second signaling, the second signaling being used to indicate a second PCI; wherein, in response to receiving the second signaling, a second PDCCH is monitored and the first PDCCH is abandoned from being monitored, the second PDCCH being associated with a second downlink RS resource, the second downlink RS resource being associated with the second PCI; the first signaling includes an RRC message; the second signaling includes a signaling below the RRC layer; the first PDCCH is scrambled with a source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; the source identifier and the target identifier are each an RNTI.

[0476] As an embodiment, the second communication device 410 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating actions when executed by at least one processor, the actions including: sending a first signaling, the first signaling indicating a target identifier; sending a first PDCCH, the first PDCCH being associated with a first downlink RS resource, the first downlink RS resource being associated with a first PCI; sending a second signaling, the second signaling being used to indicate a second PCI; wherein, in response to receiving the second signaling, a second PDCCH is monitored and the first PDCCH is abandoned from being monitored, the second PDCCH being associated with a second downlink RS resource, the second downlink RS resource being associated with the second PCI; the first signaling includes an RRC message; the second signaling includes a signaling below the RRC layer; the first PDCCH is scrambled with a source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; the source identifier and the target identifier are each an RNTI.

[0477] As an embodiment, the antenna 452, the receiver 454, the receiving processor 456, the controller / processor 459 are used to receive the first signaling; at least one of the antenna 420, the transmitter 418, the transmitting processor 416, the controller / processor 475 is used to send the first signaling.

[0478] As an example, the antenna 452, the receiver 454, the receiving processor 456, and the controller / processor 459 are used to receive a second signaling; at least one of the antenna 420, the transmitter 418, the transmitting processor 416, and the controller / processor 475 is used to send a second signaling.

[0479] As an example, the antenna 452, the receiver 454, the receiving processor 456, and the controller / processor 459 are used to receive a first uplink grant; at least one of the antenna 420, the transmitter 418, the transmitting processor 416, and the controller / processor 475 is used to send a first uplink grant.

[0480] As an example, the antenna 452, the receiver 454, the receiving processor 456, and the controller / processor 459 are used to receive a second uplink grant; at least one of the antenna 420, the transmitter 418, the transmitting processor 416, and the controller / processor 475 is used to send a second uplink grant.

[0481] As an example, the antenna 452, the receiver 454, the receiving processor 456, and the controller / processor 459 are used to receive a first type of reference signal; at least one of the antenna 420, the transmitter 418, the transmitting processor 416, and the controller / processor 475 is used to send a first type of reference signal.

[0482] As an example, the antenna 452, the receiver 454, the receiving processor 456, and the controller / processor 459 are used to monitor a first PDCCH; at least one of the antenna 420, the transmitter 418, the transmitting processor 416, and the controller / processor 475 is used to send a first PDCCH.

[0483] As an example, the antenna 452, the receiver 454, the receiving processor 456, and the controller / processor 459 are used to monitor a second PDCCH; at least one of the antenna 420, the transmitter 418, the transmitting processor 416, and the controller / processor 475 is used to send a second PDCCH.

[0484] As an example, the antenna 452, the transmitter 454, the transmitting processor 468, and the controller / processor 459 are used to send a second wireless signal; at least one of the antenna 420, the receiver 418, the receiving processor 470, and the controller / processor 475 is used to receive a second wireless signal.

[0485] As an embodiment, the first communication device 450 corresponds to the first node in the present application.

[0486] As an embodiment, the second communication device 410 corresponds to the second node in the present application.

[0487] As an embodiment, the second communication device 410 corresponds to the third node in the present application.

[0488] As an embodiment, the second communication device 410 corresponds to the fourth node in the present application.

[0489] As an embodiment, the first communication device 450 is a user equipment.

[0490] As an embodiment, the first communication device 450 is a user equipment supporting large time delay difference.

[0491] As an embodiment, the first communication device 450 is a user equipment supporting NTN.

[0492] As an embodiment, the first communication device 450 is an aircraft equipment.

[0493] As an embodiment, the first communication device 450 has positioning capability.

[0494] As an embodiment, the first communication device 450 does not have positioning capability.

[0495] As an embodiment, the first communication device 450 is a user equipment supporting TN.

[0496] As an embodiment, the second communication device 410 is a base station device (gNB / eNB / ng-eNB).

[0497] As an embodiment, the second communication device 410 is a base station device supporting large time delay difference.

[0498] As an embodiment, the second communication device 410 is a base station device supporting NTN.

[0499] As an embodiment, the second communication device 410 is a satellite device.

[0500] As an embodiment, the second communication device 410 is a flying platform device.

[0501] As an embodiment, the second communication device 410 is a base station device supporting TN.

[0502] Example 5

[0503] Example 5 exemplifies a wireless signal transmission flowchart according to an embodiment of the present application, as shown in the appendix Figure 5 It should be specifically noted that the order in this example does not limit the signal transmission order and the implementation order in the present application.

[0504] For First Node U01 , in step S5101, a first signaling is received, and the first signaling indicates a target identifier; in step S5102, a first PDCCH is monitored, and the first PDCCH is associated with a first downlink RS resource, and the first downlink RS resource is associated with a first PCI; in step S5103, a second signaling is received, and the second signaling is used to indicate a second PCI; in step S5104, in response to receiving the second signaling as the action, a second PDCCH is monitored and the monitoring of the first PDCCH is abandoned, and the second PDCCH is associated with a second downlink RS resource, and the second downlink RS resource is associated with the second PCI.

[0505] For Second Node N02 , in step S5201, the first signaling is sent; in step S5202, the second signaling is sent.

[0506] For Third Node N03 , in step S5301, the first signaling is sent.

[0507] In Example 5, the first signaling includes an RRC message; the second signaling includes a signaling below the RRC layer; the first PDCCH is scrambled with a source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; the source identifier and the target identifier are each an RNTI.

[0508] As an embodiment, the first node U01 is a user equipment.

[0509] As an embodiment, the first node U01 is a terminal.

[0510] As an embodiment, the second node N02 includes a TRP.

[0511] As an embodiment, the second node N02 includes a DU.

[0512] As an embodiment, the second node N02 includes a gNB.

[0513] As an embodiment, the second node N02 includes a base station device.

[0514] As an example, the second node N02 includes a user equipment.

[0515] As an example, the third node N03 includes a TRP.

[0516] As an example, the third node N03 includes a TRP.

[0517] As an example, the third node N03 includes a DU.

[0518] As an example, the third node N03 includes a gNB.

[0519] As an example, the third node N03 includes a base station device.

[0520] As an example, the third node N03 includes a user equipment.

[0521] As an example, the second node N02 and the third node N03 are each a TRP, the second node N02 is associated with the first PCI, and the third node N03 is associated with the second PCI.

[0522] As an example, the uplink transmission timings of the second node N02 and the third node N03 are the same.

[0523] As an example, the uplink transmission timings of the second node N02 and the third node N03 are different.

[0524] As an example, the link between the second node N02 and the third node N03 is an ideal backhaul.

[0525] As an example, the link between the second node N02 and the third node N03 is a non-ideal backhaul.

[0526] As an example, the second node N02 and the third node N03 belong to the same DU.

[0527] As an example, the second node N02 and the third node N03 belong to different DUs.

[0528] As an example, the dashed box F5.1 is optional.

[0529] As an example, the dashed box F5.1 exists.

[0530] As an example, the dashed box F5.1 does not exist.

[0531] As an example, the dashed box F5.2 is optional.

[0532] As an embodiment, the dashed box F5.2 exists.

[0533] As an embodiment, the dashed box F5.2 does not exist.

[0534] As an embodiment, the dashed box F5.1 exists and the dashed box F5.2 does not exist.

[0535] As an embodiment, the third node N03 includes a serving base station of a cell before the PCell of the first node U01 is switched to the cell identified by the first PCI.

[0536] As an embodiment, the third node N03 includes a serving base station of the cell identified by the second PCI.

[0537] As an embodiment, the second node N02 includes a serving base station of the cell identified by the first PCI.

[0538] As an embodiment, the cell identified by the first PCI includes the second cell.

[0539] As an embodiment, the second node N02 includes a serving base station of the second cell.

[0540] As an embodiment, the second node N02 includes the second TRP.

[0541] As an embodiment, the first signaling is used for a synchronous reconfiguration process.

[0542] As an embodiment, the first signaling is used for handover configuration.

[0543] As an embodiment, the first signaling includes physical layer parameters of the first node U01 in the first cell.

[0544] As an embodiment, the first signaling includes the C-RNTI of the first node U01 in the first cell, and the C-RNTI is the target identifier.

[0545] As an embodiment, the first signaling includes MAC layer parameters of the first node U01 in the first cell.

[0546] As an embodiment, the first signaling includes PDCP layer parameters of the first node U01 in the first cell.

[0547] As an embodiment, the first signaling includes RLC layer parameters of the first node U01 in the first cell.

[0548] As an embodiment, the first signaling includes the second PCI of the first cell.

[0549] As an embodiment, the first signaling includes a timer T304.

[0550] As an embodiment, the first signaling includes a reconfigurationWithSync field.

[0551] As an embodiment, when the first signaling is received, the configuration in the first signaling is applied.

[0552] As an embodiment, the phrase the first signaling indicates a target identity includes: applying the value of an identity indicated by the first signaling as the target identity.

[0553] As a sub - embodiment of this embodiment, the identity includes newUE - Identity; the value of the identity includes an RNTI - Value; the target identity includes C - RNTI.

[0554] As a sub - embodiment of this embodiment, the first signaling includes a field in an RRC message, and the name of the field includes reconfigurationWithSync.

[0555] As a sub - embodiment of this embodiment, during the process of reconfiguration with sync performed by the first node U01, the value of an identity indicated by the first signaling is applied as the target identity.

[0556] As a sub - embodiment of this embodiment, the phrase applying the value of an identity indicated by the first signaling as the target identity includes: applying the value of newUE - Identity as the C - RNTI for the first cell group.

[0557] As an embodiment, the dashed box F5.1 does not exist, and the dashed box F5.2 exists.

[0558] As an embodiment, the second node N02 includes the serving base station of the cell identified by the first PCI.

[0559] As an embodiment, the cell identified by the first PCI is the first cell.

[0560] As an embodiment, the second node N02 includes the serving base station of the first cell.

[0561] As an embodiment, the second node N02 includes the first TRP.

[0562] As an embodiment, the first signaling includes an RRCReconfiguration message.

[0563] As an embodiment, the first signaling is used to configure a candidate cell.

[0564] As an embodiment, the first signaling is used to configure a C-RNTI.

[0565] As an embodiment, the first signaling is used to configure the C-RNTI of a cell other than the serving cell of the first node U01.

[0566] As an embodiment, the first signaling includes the physical layer parameters of the first node U01 in the second cell.

[0567] As an embodiment, the first signaling includes the C-RNTI of the first node U01 in the second cell, and the C-RNTI is the target identifier.

[0568] As an embodiment, when the first signaling is received, the configuration in the first signaling is not applied, and when the second signaling is received, the configuration in the first signaling is applied.

[0569] As an embodiment, the meaning of the serving base station of a cell includes: the radio signals in the cell are sent or received by the serving base station.

[0570] As an embodiment, the meaning of the serving base station of a cell includes: the cell is associated with the serving base station.

[0571] As an embodiment, the source identifier is the identifier of the first node U01 in the first cell, and the target identifier is the identifier of the first node U01 in the second cell.

[0572] As an embodiment, the source identifier is the identifier of the first node U01 in the second cell, and the target identifier is the identifier of the first node U01 in the first cell.

[0573] Example 6

[0574] Example 6 illustrates a wireless signal transmission flowchart according to another embodiment of the present application, as shown in the appendix Figure 6 It should be specifically noted that the order in this example does not limit the signal transmission order and implementation order in the present application.

[0575] For First Node U01 , in step S6101, a first signaling is received, and the first signaling indicates a target identifier; in step S6102, a first uplink grant is received, and the first uplink grant is associated with the source identifier; in step S6103, a first PDCCH is monitored, and the first PDCCH is associated with a first downlink RS resource, and the first downlink RS resource is associated with a first PCI; in step S6104, a second signaling is received, and the second signaling is used to indicate a second PCI; in step S6105, in response to receiving the second signaling as the action, a second PDCCH is monitored and the monitoring of the first PDCCH is abandoned, and the second PDCCH is associated with a second downlink RS resource, and the second downlink RS resource is associated with the second PCI; in step S6106, a second uplink grant is received, and the second uplink grant is associated with the target identifier; in step S6107, in response to receiving the first uplink grant and the second uplink grant as the action, it is considered that the first NDI has been flipped.

[0576] For Second Node N02 , in step S6201, the first uplink grant is sent; in step S6202, the second signaling is sent.

[0577] For Fourth Node N04 , in step S6401, the second uplink grant is sent.

[0578] In Example 6, the first signaling includes an RRC message; the second signaling includes a signaling below the RRC layer; the first PDCCH is scrambled with the source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; the source identifier and the target identifier are each an RNTI; the first uplink grant and the second uplink grant are associated with the same HARQ process; the reception time of the first uplink grant is earlier than the reception time of the second uplink grant.

[0579] As an embodiment, the first PDCCH indicates scheduling information of the first uplink grant; the scheduling information includes at least one of a time domain position, a frequency domain position, an MCS, an RV, an NDI, or a HARQ process number.

[0580] As an embodiment, the second PDCCH indicates scheduling information of the second uplink grant; the scheduling information includes at least one of a time domain position, a frequency domain position, an MCS, an RV, an NDI, or a HARQ process number.

[0581] As an embodiment, there is no Xn connection between the second node N02 and the fourth node N04.

[0582] As an embodiment, there is an Xn connection between the second node N02 and the fourth node N04.

[0583] As an embodiment, the connection between the second node N02 and the fourth node N04 is an ideal backhaul.

[0584] As an embodiment, the connection between the second node N02 and the fourth node N04 is a non-ideal backhaul.

[0585] As an embodiment, the second node N02 and the fourth node N04 belong to the same physical cell.

[0586] As an embodiment, the second node N02 and the fourth node N04 belong to different physical cells.

[0587] As an embodiment, the second node N02 and the fourth node N04 have the same Physical Cell Identity (PCI).

[0588] As an embodiment, the second node N02 and the fourth node N04 have different physical cell identities.

[0589] As an embodiment, the second node N02 and the fourth node N04 belong to two different sites.

[0590] As an embodiment, the first uplink grant includes one UL grant.

[0591] As an embodiment, the first uplink grant is received on the PDCCH.

[0592] As an embodiment, the first uplink grant is a UL grant sent to the source identity.

[0593] As an embodiment, the first uplink grant is received on the first PDCCH.

[0594] As an embodiment, the first uplink grant is received on the PDCCH for the source identity.

[0595] As an example, the second uplink grant includes a UL grant.

[0596] As an example, the second uplink grant is received on the PDCCH.

[0597] As an example, the second uplink grant is a UL grant sent to the target identity.

[0598] As an example, the second uplink grant is received on the second PDCCH.

[0599] As an example, the second uplink grant is received on the PDCCH for the target identity.

[0600] As an example, the phrase the first uplink grant is associated with the source identity includes: the first uplink grant is received on the PDCCH for the source identity.

[0601] As an example, the phrase the first uplink grant is associated with the source identity includes: the first UL grant is for the source identity.

[0602] As an example, the phrase the second uplink grant is associated with the target identity includes: the second uplink grant is received on the PDCCH for the target identity.

[0603] As an example, the phrase the second uplink grant is associated with the target identity includes: the second uplink grant is for the target identity.

[0604] As an example, the phrase in response to the act of receiving the first uplink grant and the second uplink grant includes: if the first uplink grant is received and the second uplink grant is received.

[0605] As an example, the phrase in response to the act of receiving the first uplink grant and the second uplink grant includes: when the second uplink grant is received, if the first uplink grant was received previously.

[0606] As an example, the meaning of the act "in response to the act of receiving the first uplink grant and the second uplink grant, consider that the first NDI has flipped" includes: regardless of whether the value of the first NDI provided in the HARQ information associated with the first uplink grant is different from the value of the first NDI provided in the HARQ information associated with the second uplink grant, consider that the first NDI has flipped.

[0607] As an example, the meaning of the action "consider the first NDI to have been toggled in response to receiving a first uplink grant and a second uplink grant as the action" includes: considering the second uplink grant to be used for transmitting new data in response to receiving the first uplink grant and the second uplink grant as the action.

[0608] As an example, the action of considering the first NDI to have been toggled includes: considering the value of the first NDI to have changed.

[0609] As an example, the action of considering the first NDI to have been toggled includes: consider the first NDI to have been toggled.

[0610] As an example, for the same HARQ process, when the values of the first NDI provided in the HARQ information associated with two consecutive UL grants are different, the latter UL grant is used for transmitting new data.

[0611] As an example, for the same HARQ process, when the values of the first NDI provided in the HARQ information associated with two consecutive UL grants are the same, the latter UL grant is used for retransmission.

[0612] As an example, the first NDI is an NDI.

[0613] As an example, the first NDI includes 1 bit.

[0614] As an example, the value of the first NDI is equal to 0 or 1.

[0615] As an example, the first NDI is received in the HARQ information.

[0616] As an example, the first NDI is received in the DCI.

[0617] As an example, the first NDI is dedicated to a HARQ process.

[0618] As an example, the first receiver receives a DCI, which includes the first uplink grant and the first HARQ information. The first uplink grant is associated with a HARQ process, and the HARQ process is identified by a target integer. The first HARQ information includes the first NDI, and the first NDI is set to a first value. The first receiver also receives another DCI, which includes the second uplink grant and the second HARQ information. The second uplink grant is associated with a HARQ process, and the HARQ process is identified by the target integer. The second HARQ information includes the first NDI, and the first NDI is set to a second value. Herein, the one DCI is associated with the first PDCCH, the other DCI is associated with the second PDCCH, and the target integer is a non - negative integer.

[0619] As a sub - example of this example, the target integer is not less than 0 and not greater than 15.

[0620] As a sub - example of this example, the target integer is not less than 0 and not greater than 31.

[0621] As a sub - example of this example, the target integer is the HARQ process identifier.

[0622] As an example, within the time interval between the reception time of the first uplink grant and the reception time of the second uplink grant, the MAC entity is not reset.

[0623] As an example, within the time interval between the reception time of the first uplink grant and the reception time of the second uplink grant, no other UL grant is received.

[0624] As an example, within the time interval between the reception time of the first uplink grant and the reception time of the second uplink grant, no other UL grant is received via PDCCH.

[0625] As an example, the phrase that the first uplink grant and the second uplink grant are associated with the same HARQ process includes: the first uplink grant and the second uplink grant have the same HARQ process identifier (HARQ process ID).

[0626] As an example, the phrase that the first uplink grant and the second uplink grant are associated with the same HARQ process includes: the first uplink grant and the second uplink grant belong to the same HARQ process.

[0627] As an example, the HARQ process associated with the first uplink grant is identified by the target integer, and the HARQ process associated with the second uplink grant is identified by the target integer.

[0628] As an example, the second uplink grant is a UL grant after the first uplink grant.

[0629] As an example, the action of "considering that the first NDI has been toggled in response to receiving the second uplink grant" includes: if the second uplink grant for the Serving Cell has been received on the PDCCH for the MAC entity's target identity, and if the second uplink grant received for the MAC entity's second identity, and if the previous uplink grant delivered to the HARQ entity for the same HARQ process was an uplink grant received for the MAC entity’s first identity, consider the NDI to have been toggled for the corresponding HARQ process regardless of the value of the NDI.

[0630] As a sub - example of this example, for Section 5.4.1 of TS 38.321, the following is performed:

[0631] 1>if an uplink grant for this Serving Cell has been received on the PDCCH for the MAC entity's source identity (source identity) or Temporary C-RNTI or the target identity (target identity); or

[0632] 1>if an uplink grant has been received in a Random Access Response:

[0633] 2>if the uplink grant is for MAC entity's C-RNTI and if the previousuplink grant delivered to the HARQ entity for the same HARQ process waseither an uplink grant received for the MAC entity's CS-RNTI or a configureduplink grant,or,

[0634] 2>if the uplink grant received for the MAC entity's target identityand if the previous uplink grant delivered to the HARQ entity for the sameHARQ process was an uplink grant received for the MAC entity's sourceidentity,or,

[0635] 3>consider the NDI to have been toggled for the corresponding HARQprocess regardless of the value of the NDI.

[0636] As a subsidiary embodiment of this sub-embodiment, at least one of the source identifier and the target identifier is a C-RNTI of the first node U01 in a serving cell.

[0637] As a subsidiary embodiment of this sub - embodiment, the source identifier is a C - RNTI.

[0638] As a lower - level embodiment of this subsidiary embodiment, the target identifier is the C - RNTI of the first node U01 in the second cell.

[0639] As a subsidiary embodiment of this sub - embodiment, the target identifier is a C - RNTI.

[0640] As a lower - level embodiment of this subsidiary embodiment, the source identifier is the C - RNTI of the first node U01 in the second cell.

[0641] Example 7

[0642] Embodiment 7 exemplifies a wireless signal transmission flowchart according to another embodiment of the present application, as shown in the appendix Figure 7 Specifically, the order in this example does not limit the signal transmission order and implementation order in the present application.

[0643] For First Node U01 , in step S7101, receive a first signaling, where the first signaling indicates a target identifier; in step S7102, monitor a first PDCCH, where the first PDCCH is associated with a first downlink RS resource, and the first downlink RS resource is associated with a first PCI; in step S7103, receive a second signaling, where the second signaling is used to indicate a second PCI; in step S7104, as a response to the act of receiving the second signaling, monitor a second PDCCH and stop monitoring the first PDCCH, where the second PDCCH is associated with a second downlink RS resource, and the second downlink RS resource is associated with the second PCI; in step S7105, as a response to the act of receiving the second signaling, clear a first counter; in step S7106, as a response to the act of receiving the second signaling, consider a first secondary cell as a deactivated state; in step S7107, as a response to the act of receiving the second signaling, set the C - RNTI as the target identifier.

[0644] For Second Node N02 , in step S7201, send the second signaling.

[0645] In Embodiment 7, the first signaling includes an RRC message; the second signaling includes signaling below the RRC layer; the first PDCCH is scrambled with a source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; the source identifier and the target identifier are each an RNTI; the first counter is maintained at the MAC layer; the first secondary cell and the cell identified by the first PCI belong to the same cell group.

[0646] As an embodiment, the act of receiving the second signaling triggers clearing the first counter.

[0647] As an embodiment, the act of receiving the second signaling triggers the act of treating the first secondary cell as a deactivated state.

[0648] As an embodiment, the act of receiving the second signaling triggers the act of setting the C-RNTI to the target identifier.

[0649] As an embodiment, the act of receiving the second signaling triggers the act of listening to the second PDCCH and ceasing to listen to the first PDCCH, or the act of clearing the first counter, or the act of treating the first secondary cell as a deactivated state, or the act of setting the C-RNTI to the target identifier, or at least one of these.

[0650] As an embodiment, a first receiver receives first signaling that indicates a target identifier, listens to a first PDCCH that is associated with a first downlink RS resource that is associated with a first PCI, receives second signaling that is used to indicate a second PCI, and in response to the act of receiving the second signaling, treats the first secondary cell as a deactivated state and listens to the second PDCCH and ceases to listen to the first PDCCH, where the second PDCCH is associated with a second downlink RS resource that is associated with the second PCI; wherein the first signaling includes an RRC message; the second signaling includes signaling below the RRC layer; the first PDCCH is scrambled with a source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; the source identifier and the target identifier are each an RNTI; the first secondary cell and the cell identified by the first PCI belong to the same cell group.

[0651] As an embodiment, the first secondary cell is a SCell.

[0652] As an embodiment, the first secondary cell is a SCell in the MCG.

[0653] As an example, the first secondary cell is an SCell in the SCG.

[0654] As an example, the first secondary cell is any SCell in the MCG.

[0655] As an example, the first secondary cell is any SCell in the SCG.

[0656] As an example, the act of considering the first secondary cell as a deactivated state includes: if the first secondary cell is in an active state, converting the first secondary cell to the deactivated state.

[0657] As an example, the act of considering the first secondary cell as a deactivated state includes: if the first secondary cell is in a deactivated state, maintaining the first secondary cell in the deactivated state.

[0658] As an example, the act of considering the first secondary cell as a deactivated state includes: regardless of whether the first secondary cell is in a deactivated state, the first secondary cell performs the behavior of the deactivated state.

[0659] As an example, the act of considering the first secondary cell as a deactivated state includes at least one of the following behaviors:

[0660] - Stop the sCellDeactivationTimer associated with the first secondary cell.

[0661] - Stop the bwp-InactivityTimer associated with the first secondary cell.

[0662] - Deactivate any active BWP associated with the first secondary cell.

[0663] - Delete the configured downlink assignment and the configured uplink grant Type 2 associated with the first secondary cell.

[0664] - Delete the PUSCH resources for semi-persistent CSI reporting associated with the first secondary cell.

[0665] - Suspend the configured uplink grant Type 1 associated with the first secondary cell.

[0666] - Refresh all HARQ buffers associated with the first secondary cell.

[0667] - If there is a consecutive LBT failure triggered for the first secondary cell, cancel the consecutive LBT failure triggered for the first secondary cell.

[0668] As an embodiment, the behavior of considering the first secondary cell as a deactivated state includes: not transmitting SRS on the first secondary cell.

[0669] As an embodiment, the behavior of considering the first secondary cell as a deactivated state includes: not reporting CSI on the first secondary cell.

[0670] As an embodiment, the behavior of considering the first secondary cell as a deactivated state includes: not transmitting on the UL-SCH on the first secondary cell.

[0671] As an embodiment, the behavior of considering the first secondary cell as a deactivated state includes: not transmitting on the RACH on the first secondary cell.

[0672] As an embodiment, the behavior of considering the first secondary cell as a deactivated state includes: not monitoring PDCCH on the first secondary cell.

[0673] As an embodiment, the behavior of considering the first secondary cell as a deactivated state includes: not monitoring the PDCCH for the first secondary cell.

[0674] As an embodiment, the behavior of considering the first secondary cell as a deactivated state includes: not transmitting PUCCH on the first secondary cell.

[0675] As an embodiment, the first secondary cell includes an SCell.

[0676] As an embodiment, the same cell group is the MCG.

[0677] As an embodiment, the same cell group is an SCG.

[0678] As an embodiment, the phrase that the first secondary cell and the cell identified by the first PCI belong to the same cell group includes: the first secondary cell and the cell identified by the first PCI are two cells in the same cell group.

[0679] As an embodiment, the phrase that the first secondary cell and the cell identified by the first PCI belong to the same cell group includes: the first secondary cell and the cell identified by the first PCI are configured with the same cellGroupId.

[0680] As an example, the cell identified by the first PCI is the PCell of the MCG, and the first secondary cell is an SCell of the MCG.

[0681] As an example, the cell identified by the first PCI is the PSCell of an SCG, and the first secondary cell is an SCell of the SCG.

[0682] As an example, the first secondary cell and the cell identified by the second PCI belong to different TAGs.

[0683] As an example, the first secondary cell and the cell identified by the second PCI belong to the same TAG.

[0684] As an example, a first receiver receives a first signaling that indicates a target identifier, listens for a first PDCCH that is associated with a first downlink RS resource which is associated with a first PCI, receives a second signaling that is used to indicate a second PCI, and in response to receiving the second signaling, sets the C-RNTI to the value of the target identifier, listens for a second PDCCH and stops listening for the first PDCCH, where the second PDCCH is associated with a second downlink RS resource which is associated with the second PCI; wherein, the first signaling includes an RRC message; the second signaling includes a signaling below the RRC layer; the first PDCCH is scrambled with a source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; and the source identifier and the target identifier are each an RNTI.

[0685] As an example, the act of setting the C-RNTI to the target identifier includes: setting the C-RNTI to the value of the target identifier.

[0686] As an example, the act of setting the C-RNTI to the target identifier includes: setting the C-RNTI to the value of the target identifier.

[0687] As an example, the act of setting the C-RNTI to the target identifier includes: modifying the C-RNTI from the source identifier to the target identifier at the MAC layer.

[0688] As an example, the act of setting the C-RNTI to the target identifier includes: modifying the C-RNTI from the source identifier to the target identifier at the PHY layer.

[0689] As an example, set the C-RNTI to the target identifier at the MAC layer.

[0690] As an example, set the C-RNTI to the target identifier at the PHY layer.

[0691] As an example, the C-RNTI is the C-RNTI of the first node U01 in the MAC entity corresponding to the cell group to which the cell identified by the first PCI belongs.

[0692] As an example, the C-RNTI is the C-RNTI of the first node U01 in the MAC entity corresponding to the cell group to which the first cell belongs.

[0693] As an example, the C-RNTI is the C-RNTI of the first node U01 in the MAC entity corresponding to the MCG.

[0694] As an example, the C-RNTI is the C-RNTI of the first node U01 in the MAC entity corresponding to the SCG.

[0695] As an example, the C-RNTI is maintained by the first node U01 in the MAC entity corresponding to the cell group to which the cell identified by the first PCI belongs.

[0696] As an example, the C-RNTI is associated with the cell group to which the cell identified by the first PCI belongs.

[0697] As an example, the C-RNTI corresponds to the cell group to which the cell identified by the first PCI belongs.

[0698] As an example, the C-RNTI is the identifier of the first node U01 in the first cell group.

[0699] As an example, just before the action sets the C-RNTI to the target identifier, the C-RNTI is the value of the source identifier, and just after the action sets the C-RNTI to the target identifier, the C-RNTI is the value of the target identifier.

[0700] As an example, just before the action sets the C-RNTI to the target identifier, the first node U01 listens to the first PDCCH; just after the action sets the C-RNTI to the target identifier, the first node U01 listens to the second PDCCH.

[0701] As an example, a first receiver receives a first signaling that indicates a target identifier, listens for a first PDCCH that is associated with a first downlink RS resource which is associated with a first PCI, receives a second signaling that is used to indicate a second PCI, and in response to receiving the second signaling, clears a first counter and listens for a second PDCCH and abandons listening for the first PDCCH, where the second PDCCH is associated with a second downlink RS resource which is associated with the second PCI; wherein the first signaling includes an RRC message; the second signaling includes a signaling below the RRC layer; the first PDCCH is scrambled with a source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; and the first counter is maintained at the MAC layer.

[0702] As an example, the phrase "in response to receiving the second signaling" includes: when receiving the second signaling.

[0703] As an example, the phrase "in response to receiving the second signaling" includes: if receiving the second signaling.

[0704] As an example, the phrase "in response to receiving the second signaling" includes: if a MAC entity receives the second signaling.

[0705] As an example, the phrase "in response to receiving the second signaling" includes: if a MAC entity receives the second signaling.

[0706] As an example, the act of clearing the first counter includes: setting the first counter to 0.

[0707] As an example, the act of clearing the first counter includes: setting the value of the first counter to 0.

[0708] As an example, the act of clearing the first counter includes: resetting the first counter.

[0709] As an example, the act of clearing the first counter includes: setting the first counter to an initial value.

[0710] As an example, the act of clearing the first counter includes: initializing the first counter with an initial value of 0.

[0711] As an example, the phrase "the first counter is maintained at the MAC layer" includes: the first counter is a MAC layer counter.

[0712] As an example, the phrase the first counter is maintained at the MAC layer includes: the first counter is maintained at the MAC entity.

[0713] As an example, the first counter is a counter for beam failure instance indication, and the initial value of the first counter is set to 0.

[0714] As an example, the first counter is used to count the number of beam failure instance indications.

[0715] As an example, the first counter is a counter for LBT (Listen Before Talk) failure indication, and the initial value of the first counter is set to 0.

[0716] As an example, the first counter is used to count the number of LBT failure indications.

[0717] As an example, the beam failure instance indication is indicated from the physical layer to the MAC layer.

[0718] As an example, the first counter is BFI_COUNTER.

[0719] As an example, the first counter is LBT_COUNTER.

[0720] As an example, in response to receiving the second signaling for the behavior, the first timer is stopped, and the first timer is maintained at the MAC layer.

[0721] As an example, in response to receiving the second signaling for the behavior, the first counter is cleared and the first timer is stopped; the first counter is maintained at the MAC layer, and the first timer is maintained at the MAC layer.

[0722] As an example, the first timer includes lbt-FailureDetectionTimer.

[0723] As an example, the first timer includes beamFailureDetectionTimer.

[0724] As an example, the first timer is lbt-FailureDetectionTimer.

[0725] As an example, the first timer is the beamFailureDetectionTimer.

[0726] As an example, the dashed box F7.1 is optional.

[0727] As an example, the dashed box F7.1 exists.

[0728] As an example, the dashed box F7.1 does not exist.

[0729] As an example, the dashed box F7.2 is optional.

[0730] As an example, the dashed box F7.2 exists.

[0731] As an example, the dashed box F7.2 does not exist.

[0732] As an example, the dashed box F7.3 is optional.

[0733] As an example, the dashed box F7.3 exists.

[0734] As an example, the dashed box F7.3 does not exist.

[0735] As an example, at least one of the dashed box F7.1, or the dashed box F7.2, or the dashed box F7.3 exists.

[0736] Example 8

[0737] Example 8 illustrates a wireless signal transmission flow chart according to still another example of the present application, as shown in the appendix Figure 8 It should be specifically noted that the order in this example does not limit the signal transmission order and the implementation order in the present application.

[0738] For First Node U01, in step S8101, receive a first signaling, the first signaling indicating a target identifier; in step S8102, monitor a first PDCCH, the first PDCCH being associated with a first downlink RS resource, the first downlink RS resource being associated with a first PCI; in step S8103, receive a second signaling, the second signaling being used to indicate a second PCI; in step S8104, in response to receiving the second signaling as the act, monitor a second PDCCH and stop monitoring the first PDCCH, the second PDCCH being associated with a second downlink RS resource, the second downlink RS resource being associated with the second PCI; in step S8105, in response to receiving the second signaling as the act, clear a first counter; in step S8106, receive a first type of reference signal, the first type of reference signal being associated with the second PCI, measurements for the first type of reference signal being used to determine an update to the first counter; in step S8107, the first counter reaches a first value; in step S8108, when the first counter reaches the first value, initiate a first random access procedure; in step S8109, in response to initiating the first random access procedure as the act, transmit a first radio signal, the first radio signal being associated with the first PCI; in step S8110, receive a first RAR; in step S8111, transmit a second radio signal, the second radio signal including the source identifier.

[0739] For Second Node N02 , in step S8201, transmit the first signaling; in step S8202, transmit the second signaling; in step S8203, receive the first radio signal; in step S8204, transmit the first RAR; in step S8205, receive the second radio signal.

[0740] For Fourth Node N04 , in step S8401, transmit the first type of reference signal.

[0741] In Embodiment 8, the first signaling includes an RRC message; the second signaling includes a signaling below the RRC layer; the first PDCCH is scrambled with the source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; the source identifier and the target identifier are each an RNTI; the first counter is maintained at the MAC layer; the first value is a positive integer; the first type of reference signal is not related to the first PCI; the second radio signal belongs to the first random access procedure; the second radio signal is transmitted after the first radio signal.

[0742] As an example, the cell identified by the first PCI is the first cell; the cell identified by the second PCI is the second cell.

[0743] As an example, the first counter is BFI_COUNTER.

[0744] As an example, the phrase the first type of reference signal is associated with the second PCI includes: the first type of reference signal is only for the cell identified by the second PCI.

[0745] As an example, the phrase the first type of reference signal is associated with the second PCI includes: the first type of reference signal is configured for the cell identified by the second PCI.

[0746] As an example, the phrase the first type of reference signal is associated with the second PCI includes: the first type of reference signal is sent by the serving base station of the cell identified by the second PCI.

[0747] As an example, the phrase the first type of reference signal is associated with the second PCI includes: the first type of reference signal is dedicated to the cell identified by the second PCI.

[0748] As an example, the first type of reference signal is used for beam measurement.

[0749] As an example, the first type of reference signal is used for L1 measurement.

[0750] As an example, the first type of reference signal is for Beam Failure Detection (BFD).

[0751] As an example, the first type of reference signal is a physical layer signal.

[0752] As an example, the first type of reference signal is cell-specific.

[0753] As an example, the first type of reference signal is beam-specific.

[0754] As an example, the first type of reference signal is a periodic signal.

[0755] As an example, the first type of reference signal is dedicated to an antenna port.

[0756] As an example, the first type of reference signal is associated with a beam.

[0757] As an example, the first type of reference signal is associated with a beam of the first cell.

[0758] As an example, the first type of reference signal is associated with a beam of the second cell.

[0759] As an example, the first type of reference signal includes SSB.

[0760] As an example, the first type of reference signal includes CSI-RS.

[0761] As an example, the phrase "when the first counter reaches the first value" includes: if the first counter reaches the first value.

[0762] As an example, the phrase "when the first counter reaches the first value" includes: if the first counter is equal to the first value.

[0763] As an example, the phrase "when the first counter reaches the first value" includes: if the first counter is greater than the first value.

[0764] As an example, the phrase "when the first counter reaches the first value" includes: if the first counter is not less than the first value.

[0765] As an example, the act of initiating the first random access procedure includes: triggering the first random access procedure.

[0766] As an example, the act of initiating the first random access procedure includes: starting the first random access procedure.

[0767] As an example, the act of initiating the first random access procedure includes: starting to execute Section 5.1.1 or Section 5.1.1a in TS 38.321.

[0768] As an example, the act of initiating the first random access procedure includes: starting to execute Section 5.1.2 or Section 5.1.2a in TS 38.321.

[0769] As an example, the term "initiate" means initiate.

[0770] As an example, the first random access procedure refers to a random access procedure on the cell identified by the first PCI, and the cell identified by the first PCI is a PCell or a PSCell.

[0771] As an example, the first random access procedure is used for BFR.

[0772] As an example, the first random access procedure is used for fallback to the cell identified by the first PCI.

[0773] As an example, the phrase in response to the behavior initiating the first random access procedure includes: after the first random access procedure is triggered.

[0774] As an example, the phrase in response to the behavior initiating the first random access procedure includes: when the first random access procedure is being executed.

[0775] As an example, the phrase in response to the behavior initiating the first random access procedure includes: during the process of executing the first random access procedure.

[0776] As an example, the first radio signal includes at least a random access preamble.

[0777] As an example, for a four-step random access procedure, the first radio signal includes only a random access preamble.

[0778] As an example, for a two-step random access procedure, the first radio signal includes a random access preamble.

[0779] As an example, for a two-step random access procedure, the first radio signal includes a random access preamble and a PUSCH transmission.

[0780] As a sub-example of this example, the PUSCH transmission includes a MAC CE.

[0781] As a sub-example of this example, the PUSCH transmission includes a C-RNTI MAC CE.

[0782] As an ancillary example of this sub-example, the PUSCH transmission includes the second radio signal.

[0783] As an ancillary example of this sub-example, the PUSCH transmission is the second radio signal.

[0784] As a sub-example of this example, the first radio signal is MSGA.

[0785] As an example, the first value is configurable.

[0786] As an example, the first value is pre-configured.

[0787] As an embodiment, the first value is configured by an RRC message.

[0788] As an embodiment, the first value is configured for the cell identified by the second PCI.

[0789] As an embodiment, the phrase that the first type of reference signal has nothing to do with the first PCI includes: the first type of reference signal has nothing to do with the cell identified by the first PCI.

[0790] As an embodiment, the phrase that the first type of reference signal has nothing to do with the first PCI includes: any reference signal in the first type of reference signal is different from any reference signal in the cell identified by the first PCI.

[0791] As an embodiment, the phrase that the first type of reference signal has nothing to do with the first PCI includes: any reference signal in the first type of reference signal is not associated with any reference signal in the cell identified by the first PCI.

[0792] As an embodiment, the second radio signal includes MSG3.

[0793] As an embodiment, the second radio signal includes a MAC PDU.

[0794] As an embodiment, the second radio signal includes a MAC sub-header.

[0795] As an embodiment, the second radio signal includes a C-RNTI MAC CE.

[0796] As an embodiment, the second radio signal is transmitted through the UL-SCH.

[0797] As an embodiment, the phrase that the second radio signal includes the source identifier includes: the second radio signal indicates the source identifier.

[0798] As an embodiment, the phrase that the second radio signal includes the source identifier includes: a field in the second radio signal indicates the source identifier.

[0799] As an embodiment, the phrase that the second radio signal includes the source identifier includes: the second radio signal is a C-RNTI MAC CE, and the C-RNTI field in the C-RNTI MAC CE indicates the source identifier.

[0800] As an embodiment, the phrase that the second radio signal belongs to the first random access procedure includes: the second radio signal is a signal in the first random access procedure.

[0801] As an example, the phrase that the second wireless signal belongs to the first random access procedure includes: the second wireless signal is transmitted during the first random access procedure.

[0802] As an example, the phrase that the second wireless signal belongs to the first random access procedure includes: the uplink resource used by the second wireless signal is indicated by a RAR received during the first random access procedure.

[0803] As an example, the first RAR is a MAC RAR.

[0804] As an example, the first RAR is a fallback RAR.

[0805] As an example, the first RAR is a success RAR.

[0806] As an example, the first RAR is used to determine the UL grant of the second wireless signal.

[0807] As an example, the dashed box F8.1 is optional.

[0808] As an example, the dashed box F8.1 exists.

[0809] As an example, the dashed box F8.1 does not exist.

[0810] As an example, the dashed box F8.2 is optional.

[0811] As an example, the dashed box F8.2 exists.

[0812] As an example, the dashed box F8.2 does not exist.

[0813] As an example, the dashed box F8.3 is optional.

[0814] As an example, the dashed box F8.3 exists.

[0815] As an example, the dashed box F8.3 does not exist.

[0816] As an example, the dashed box F8.2 does not exist and the dashed box F8.3 does not exist.

[0817] As a sub - example of this example, the first wireless signal is for a four - step random access procedure, and the first wireless signal only includes a random access preamble.

[0818] As a sub - embodiment of this embodiment, the first wireless signal is for a two - step random access process, and the first wireless signal includes a random access preamble.

[0819] As a sub - embodiment of this embodiment, the first RAR is not successfully received.

[0820] As a sub - embodiment of this embodiment, the first RAR is not sent.

[0821] As a sub - embodiment of this embodiment, the first wireless signal is not received by the second node N02.

[0822] As an embodiment, the dashed box F8.2 exists, and the dashed box F8.3 exists.

[0823] As a sub - embodiment of this embodiment, the first wireless signal is for a four - step random access process, and the first wireless signal only includes a random access preamble.

[0824] As a sub - embodiment of this embodiment, the second wireless signal includes MSG3.

[0825] As an embodiment, the dashed box F8.2 does not exist, and the dashed box F8.3 exists.

[0826] As a sub - embodiment of this embodiment, the first wireless signal is for a two - step random access process.

[0827] As a sub - embodiment of this embodiment, the first wireless signal includes a random access preamble and the second wireless signal.

[0828] As a sub - embodiment of this embodiment, the second wireless signal is a part of the first wireless signal.

[0829] Example 9

[0830] Embodiment 9 exemplifies a schematic diagram of a first secondary cell and a cell identified by a second PCI belonging to different TAGs according to an embodiment of the present application, as shown in the appendix Figure 9 as shown.

[0831] In Embodiment 9, a first signaling is received, where the first signaling indicates a target identifier; a first PDCCH is monitored, where the first PDCCH is associated with a first downlink RS resource, and the first downlink RS resource is associated with a first PCI; a second signaling is received, where the second signaling is used to indicate a second PCI; in response to receiving the second signaling as the action, a second PDCCH is monitored and monitoring of the first PDCCH is abandoned, where the second PDCCH is associated with a second downlink RS resource, and the second downlink RS resource is associated with the second PCI; in response to receiving the second signaling as the action, a first secondary cell is regarded as a deactivated state; where the first signaling includes an RRC message; the second signaling includes a signaling below the RRC layer; the first PDCCH is scrambled with a source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; the source identifier and the target identifier are each an RNTI; the first secondary cell and the cell identified by the first PCI belong to the same cell group; the first secondary cell and the cell identified by the second PCI belong to different TAGs.

[0832] As an embodiment, the uplink transmission timing of the first node in the first secondary cell is different from the uplink transmission timing of the first node in the cell associated with the target identifier.

[0833] As an embodiment, the first secondary cell and the cell associated with the target identifier belong to different TAGs.

[0834] As an embodiment, the first secondary cell and the cell associated with the target identifier are configured in different TAGs.

[0835] As an embodiment, when the first secondary cell and the cell associated with the target identifier belong to different TAGs, in response to receiving the second signaling as the action, the first secondary cell is regarded as a deactivated state.

[0836] As an embodiment, when the first secondary cell and the cell associated with the target identifier belong to the same TAG, in response to receiving the second signaling as the action, the state of the first secondary cell is maintained.

[0837] As a sub - embodiment of this embodiment, the action of maintaining the state of the first secondary cell includes: the state of the first secondary cell does not change.

[0838] As a sub - embodiment of this embodiment, the behavior of maintaining the state of the first secondary cell includes: if the state of the first secondary cell is the active state just before receiving the second signaling in this behavior, then the state of the first secondary cell is the active state just after receiving the second signaling in this behavior.

[0839] As a sub - embodiment of this embodiment, the behavior of maintaining the state of the first secondary cell includes: if the state of the first secondary cell is the de - active state just before receiving the second signaling in this behavior, then the state of the first secondary cell is the de - active state just after receiving the second signaling in this behavior.

[0840] Example 10

[0841] Embodiment 10 exemplifies a schematic diagram of the relationship between a second node and a fourth node according to an embodiment of the present application, as shown in the appendix Figure 10 as follows.

[0842] As an embodiment, the second node includes at least the first TRP1002.

[0843] As an embodiment, the first TRP1002 belongs to the first DU1004.

[0844] As an embodiment, the first TRP1002 is part of the second node.

[0845] As an embodiment, the first TRP1002 belongs to the first cell 1006.

[0846] As an embodiment, the second node includes the first DU1004.

[0847] As an embodiment, the first DU1004 includes a CU.

[0848] As an embodiment, the first DU1004 includes a DU.

[0849] As an embodiment, the first DU1004 includes part of the second node.

[0850] As an embodiment, the fourth node includes at least the second TRP1003.

[0851] As an embodiment, the second TRP1003 belongs to the second DU1005.

[0852] As an embodiment, the second TRP1003 is part of the fourth node.

[0853] As an example, the second TRP 1003 belongs to the second cell 1007.

[0854] As an example, the fourth node includes the second DU 1005.

[0855] As an example, the second DU 1005 includes a CU.

[0856] As an example, the second DU 1005 includes a DU.

[0857] As an example, the second DU 1005 includes a part of the fourth node.

[0858] As an example, the first DU 1004 and the second DU 1005 are the same DU.

[0859] As an example, the first DU 1004 and the second DU 1005 are two different DUs.

[0860] As an example, the beam of the first TRP 1002 and the beam of the second TRP 1003 correspond to the same CORESET.

[0861] As an example, the beam of the first TRP 1002 and the beam of the second TRP 1003 correspond to different CORESETs.

[0862] As an example, the first cell 1006 includes one or more beams in the second node.

[0863] As an example, the first cell 1006 includes one or more beams of the first TRP 1002.

[0864] As an example, the first cell 1006 is associated with the second node.

[0865] As an example, the serving base station of the first cell 1006 is the second node.

[0866] As an example, the first cell 1006 is the primary cell of the first node, and the second cell 1007 is an adjacent cell of the primary cell of the first node.

[0867] As an example, the first cell 1006 is a physical cell.

[0868] As an example, the first cell 1006 belongs to the serving cell of the first node 1001, and the second cell 1007 does not belong to the serving cell of the first node 1001.

[0869] As an example, the first cell 1006 is the SpCell of the first node.

[0870] As an example, the first downlink RS resource belongs to the first cell 1006.

[0871] As an example, the first downlink RS resource corresponds to at least one beam of the first TRP 1002.

[0872] As an example, the first downlink RS resource is associated with the first cell 1006.

[0873] As an example, the first PCI is used to identify the first cell 1006.

[0874] As an example, the second cell 1007 includes one or more beams in the fourth node.

[0875] As an example, the second cell 1007 includes one or more beams of the second TRP 1003.

[0876] As an example, the second cell 1007 is associated with the fourth node.

[0877] As an example, the serving base station of the second cell 1007 is the fourth node.

[0878] As an example, the second cell 1007 is a physical cell.

[0879] As an example, when the second cell 1007 is configured, the first node 1001 maintains an RRC connection with the first cell 1006; when the second cell 1007 is applied, the serving cell identifier of the first node 1001 remains unchanged.

[0880] As an example, the second downlink RS resource belongs to the second cell 1007.

[0881] As an example, the second downlink RS resource corresponds to at least one beam of the second TRP 1003.

[0882] As an example, the second downlink RS resource is associated with the second cell 1007.

[0883] As an example, the second PCI is used to identify the second cell 1007.

[0884] As an example, the first cell 1006 and the second cell 1007 are of the same frequency.

[0885] As an example, the first cell 1006 and the second cell 1007 are of different frequencies.

[0886] As an example, the cell identified by the first PCI is the first cell 1006; the cell identified by the second PCI is the second cell 1007.

[0887] As an example, the cell identified by the first PCI is the second cell 1007; the cell identified by the second PCI is the first cell 1006.

[0888] As an example, the first cell 1006 includes the serving cell of the first node 1001, and the second cell 1007 includes the non - serving cell of the first node 1001.

[0889] As an example, the first cell 1006 includes the serving cell of the first node 1001, and the second cell 1007 includes an adjacent cell of the first cell 1006.

[0890] As an example, there is an RRC connection between the first node 1001 and the first cell 1006, and there is no RRC connection between the first node 1001 and the second cell 1007.

[0891] As an example, the first PDCCH is sent by the serving base station of the second cell 1007; the second PDCCH is sent by the serving base station of the first cell 1006.

[0892] As an example, the first PDCCH is sent by the second TRP 1003; the second PDCCH is sent by the first TRP 1002.

[0893] As an example, the first PDCCH is sent by the serving base station of the first cell 1006; the second PDCCH is sent by the serving base station of the second cell 1007.

[0894] As an example, the first PDCCH is sent by the first TRP 1002; the second PDCCH is sent by the second TRP 1003.

[0895] As an example, the arrow 1008 represents at least one of the BCCH, or the paging signal, or the system information.

[0896] As an example, the arrow 1009 represents at least one of the PUSCH, or the PDSCH, or the PDCCH.

[0897] As an example, arrow 1010 represents at least one of PUSCH, PDSCH, or PDCCH.

[0898] As an example, one of arrow 1009 and arrow 1010 exists.

[0899] As an example, arrow 1009 and arrow 1010 do not exist simultaneously.

[0900] As an example, arrow 1009 includes the first PDCCH, and arrow 1010 includes the second PDCCH.

[0901] As an example, arrow 1009 includes the first uplink grant, and arrow 1010 includes the second uplink grant.

[0902] As an example, arrow 1009 includes the second PDCCH, and arrow 1010 includes the first PDCCH.

[0903] As an example, arrow 1009 includes the second uplink grant, and arrow 1010 includes the first uplink grant.

[0904] As an example, the first node 1001 determines physical resources between the first cell 1006 and the second cell 1007 through the second signaling.

[0905] As an example, when the first node 1001 moves between the first cell 1006 and the second cell 1007, the serving cell of the first node 1001 remains unchanged.

[0906] As a sub - example of this example, the phrase "the serving cell of the first node 1001 remains unchanged" includes that at least one of the protocol stacks of the RRC layer, PDCP layer, RLC layer, MAC layer, or PHY layer of the first node 1001 does not require relocation.

[0907] As a sub - example of this example, the phrase "the serving cell of the first node 1001 remains unchanged" includes that the RRC connection of the first node 1001 remains unchanged.

[0908] As a sub - example of this example, the phrase "the serving cell of the first node 1001 remains unchanged" includes that the serving cell identifier of the first node 1001 remains unchanged.

[0909] As a sub - embodiment of this embodiment, the phrase "the serving cell of the first node 1001 remains unchanged" includes: all or part of the configurations in the ServingCellConfigCommon configuration of the first node 1001 remain unchanged.

[0910] As a sub - embodiment of this embodiment, the phrase "the serving cell of the first node 1001 remains unchanged" includes: all or part of the configurations in the ServingCellConfigCommonSIB configuration of the first node 1001 remain unchanged.

[0911] As an embodiment, the serving cell refers to a PCell or a PSCell or an SCell.

[0912] As a sub - embodiment of this embodiment, the PCell refers to a cell operating on the primary frequency, and the first node 1001 performs an initial connection establishment process or initiates a connection re - establishment process on the PCell.

[0913] As a sub - embodiment of this embodiment, the PSCell refers to the SCG cell on which the first node 1001 performs a random access process when performing a synchronous re - configuration process for the first node 1001 configured with dual - connectivity operation.

[0914] As a sub - embodiment of this embodiment, the SCell refers to a cell that provides additional radio resources for the first node 1001 configured with CA on top of the SpCell.

[0915] As an embodiment, the serving cell includes the first cell 1006.

[0916] As an embodiment, the second cell 1007 provides additional physical resources on top of the serving cell.

[0917] As an embodiment, the first node 1001 does not have an independent MAC entity for the second cell 1007.

[0918] As an embodiment, the first node 1001 does not have an independent MAC process for the second cell 1007.

[0919] As an embodiment, the MAC entity of the first node 1001 does not have an independent HARQ entity for the second cell 1007.

[0920] As an example, the MAC entity of the first node 1001 includes one HARQ entity for the first cell 1006 and the second cell 1007.

[0921] As an example, the MAC entity of the first node 1001 shares the same HARQ entity for the first cell 1006 and the second cell 1007.

[0922] As an example, the first cell 1006 and the second cell 1007 are associated with the same HARQ entity.

[0923] Example 11

[0924] Embodiment 11 exemplifies a structural block diagram of a processing device in a first node according to an embodiment of the present application; as shown in the appendix Figure 11 shown. In the appendix Figure 11 shown, the processing device 1100 in the first node includes a first receiver 1101 and a first transmitter 1102.

[0925] The first receiver 1101 receives first signaling that indicates a target identifier; monitors a first PDCCH that is associated with a first downlink RS resource that is associated with a first PCI; receives second signaling that is used to indicate a second PCI; in response to receiving the second signaling as the behavior, monitors a second PDCCH and abandons monitoring the first PDCCH, where the second PDCCH is associated with a second downlink RS resource that is associated with the second PCI;

[0926] In Embodiment 11, the first signaling includes an RRC message; the second signaling includes signaling below the RRC layer; the first PDCCH is scrambled with a source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; the source identifier and the target identifier are each an RNTI.

[0927] As an example, the first receiver 1101, in response to receiving the second signaling as the behavior, treats a first secondary cell as a deactivated state; where the first secondary cell and the cell identified by the first PCI belong to the same cell group.

[0928] As an example, the first secondary cell and the cell identified by the second PCI belong to different TAGs.

[0929] As an example, the first receiver 1101, in response to receiving the second signaling as the behavior, sets the C-RNTI to the target identifier.

[0930] As an embodiment, the first receiver 1101 receives a first uplink grant and a second uplink grant. The first uplink grant is associated with the source identifier, and the second uplink grant is associated with the target identifier. In response to receiving the first uplink grant and the second uplink grant, it is considered that the first NDI has been flipped. Wherein, the first uplink grant and the second uplink grant are associated with the same HARQ process, and the reception time of the first uplink grant is earlier than the reception time of the second uplink grant.

[0931] As an embodiment, the first receiver 1101 clears a first counter in response to receiving the second signaling. The first counter is maintained at the MAC layer.

[0932] As an embodiment, the first receiver 1101 receives a first type of reference signal associated with the second PCI. Measurements on the first type of reference signal are used to determine an update to the first counter. The first transmitter 1102 initiates a first random access procedure when the first counter reaches a first value. In response to initiating the first random access procedure, a first radio signal associated with the first PCI is transmitted. Wherein, the first value is a positive integer, and the first type of reference signal has nothing to do with the first PCI.

[0933] As an embodiment, the first transmitter 1102 transmits a second radio signal including the source identifier. Wherein, the second radio signal belongs to the first random access procedure and is transmitted after the first radio signal.

[0934] As an embodiment, the first receiver 1101 includes antenna 452, receiver 454, multi-antenna reception processor 458, reception processor 456, controller / processor 459, memory 460, and data source 467 attached in this application Figure 4

[0935] As an embodiment, the first receiver 1101 includes antenna 452, receiver 454, multi-antenna reception processor 458, and reception processor 456 attached in this application Figure 4

[0936] As an embodiment, the first receiver 1101 includes antenna 452, receiver 454, and reception processor 456 attached in this application Figure 4

[0937] As an embodiment, the first transmitter 1102 includes those attached in this application Figure 4 ​​​antenna 452, transmitter 454, multi-antenna transmission processor 457, transmission processor 468, controller / processor 459, memory 460, and data source 467 therein.

[0938] As an example, the first transmitter 1102 includes the appendix of this application Figure 4 antenna 452, transmitter 454, multi-antenna transmission processor 457, transmission processor 468 therein.

[0939] As an example, the first transmitter 1102 includes the appendix of this application Figure 4 antenna 452, transmitter 454, transmission processor 468 therein.

[0940] Example 12

[0941] Example 12 illustrates a structural block diagram of a processing device in a second node according to an embodiment of the present application; as shown in the appendix Figure 12 shown. In the appendix Figure 12 the processing device 1200 in the second node includes a second transmitter 1201 and a second receiver 1202.

[0942] The second transmitter 1201 sends first signaling indicating a target identifier; sends a first PDCCH associated with a first downlink RS resource associated with a first PCI; sends second signaling used to indicate a second PCI;

[0943] In Example 12, in response to receiving the second signaling, a second PDCCH is monitored and the first PDCCH is given up being monitored. The second PDCCH is associated with a second downlink RS resource associated with the second PCI; the first signaling includes an RRC message; the second signaling includes signaling below the RRC layer; the first PDCCH is scrambled with a source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; the source identifier and the target identifier are each an RNTI.

[0944] As an example, the second PDCCH is sent by a serving base station of a cell identified by the second PCI.

[0945] As an example, in response to receiving the second signaling, a first secondary cell is considered in a deactivated state; wherein the first secondary cell and the cell identified by the first PCI belong to the same cell group.

[0946] As an example, the first secondary cell and the cell identified by the second PCI belong to different TAGs.

[0947] As an example, in response to receiving the second signaling, the C-RNTI is set to the target identifier.

[0948] As an example, the C-RNTI is set to the target identifier in the MAC entity of the receiver of the second signaling.

[0949] As an example, the second transmitter 1201 sends a first uplink grant associated with the source identifier; wherein, in response to receiving the first uplink grant and the second uplink grant, the first NDI is considered to have flipped; the second uplink grant is associated with the target identifier; the first uplink grant and the second uplink grant are associated with the same HARQ process; the reception time of the first uplink grant is earlier than the reception time of the second uplink grant.

[0950] As an example, the first NDI is considered by the receiver of the second signaling to have flipped.

[0951] As an example, in response to receiving the second signaling, the first counter is cleared; the first counter is maintained at the MAC layer.

[0952] As an example, the first counter is cleared by the MAC entity of the receiver of the second signaling.

[0953] As an example, the second receiver 1202 receives a first radio signal associated with the first PCI; wherein, a first type of reference signal is received, the first type of reference signal is associated with the second PCI, and the measurement of the first type of reference signal is used to determine to update the first counter; when the first counter reaches a first value, a first random access procedure is initiated; in response to initiating the first random access procedure, the first radio signal is sent; the first value is a positive integer; the first type of reference signal has nothing to do with the first PCI.

[0954] As an example, the first type of reference signal is received by the receiver of the second signaling.

[0955] As an example, the first random access procedure is sent by the receiver of the second signaling.

[0956] As an example, the first radio signal is sent by the receiver of the second signaling.

[0957] As an example, the second receiver 1202 receives a second wireless signal, where the second wireless signal includes the source identifier; wherein, the second wireless signal belongs to the first random access procedure; the second wireless signal is transmitted after the first wireless signal.

[0958] As an example, the second transmitter 1201 includes antenna 420, transmitter 418, multi-antenna transmission processor 471, transmission processor 416, controller / processor 475, and memory 476 as attached in the present application. Figure 4

[0959] As an example, the second transmitter 1201 includes antenna 420, transmitter 418, multi-antenna transmission processor 471, and transmission processor 416 as attached in the present application. Figure 4

[0960] As an example, the second transmitter 1201 includes antenna 420, transmitter 418, and transmission processor 416 as attached in the present application. Figure 4

[0961] As an example, the second receiver 1202 includes antenna 420, receiver 418, multi-antenna reception processor 472, reception processor 470, controller / processor 475, and memory 476 as attached in the present application. Figure 4

[0962] As an example, the second receiver 1202 includes antenna 420, receiver 418, multi-antenna reception processor 472, and reception processor 470 as attached in the present application. Figure 4

[0963] As an example, the second receiver 1202 includes antenna 420, receiver 418, and reception processor 470 as attached in the present application. Figure 4

[0964] Example 13

[0965] Example 13 exemplifies a wireless signal transmission flow chart for receiving a first uplink grant and a second uplink grant to determine that the first NDI is considered not flipped according to an embodiment of the present application, as shown in the attachment. Figure 13 It should be specifically noted that the order in this example does not limit the signal transmission order and implementation order in the present application.

[0966] For First Node U01, in step S13101, receive a first signaling, the first signaling indicating a target identifier; in step S13102, receive a first uplink grant, the first uplink grant being associated with the source identifier; in step S13103, monitor a first PDCCH, the first PDCCH being associated with a first downlink RS resource, the first downlink RS resource being associated with a first PCI; in step S13104, receive a second signaling, the second signaling being used to indicate a second PCI; in step S13105, in response to receiving the second signaling as the action, monitor a second PDCCH and stop monitoring the first PDCCH, the second PDCCH being associated with a second downlink RS resource, the second downlink RS resource being associated with the second PCI; in step S13106, receive a second uplink grant, the second uplink grant being associated with the target identifier; in step S13107, in response to receiving the first uplink grant and the second uplink grant as the action, consider that the first NDI has not been flipped.

[0967] For Second Node N02 , in step S13201, transmit the first uplink grant; in step S13202, transmit the second signaling.

[0968] For Fourth Node N04 , in step S13401, transmit the second uplink grant.

[0969] In Embodiment 13, the first signaling includes an RRC message; the second signaling includes a signaling below the RRC layer; the first PDCCH is scrambled with the source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; the source identifier and the target identifier are each an RNTI; the first uplink grant and the second uplink grant are associated with the same HARQ process; the reception time of the first uplink grant is earlier than the reception time of the second uplink grant.

[0970] As an embodiment, the meaning of the action "in response to receiving the first uplink grant and the second uplink grant as the action, consider that the first NDI has not been flipped" includes: regardless of whether the value of the first NDI provided in the HARQ information associated with the first uplink grant is different from the value of the first NDI provided in the HARQ information associated with the second uplink grant, consider that the first NDI has not been flipped.

[0971] As an embodiment, the meaning of the action "in response to receiving the first uplink grant and the second uplink grant as the action, consider that the first NDI has not been flipped" includes: in response to receiving the first uplink grant and the second uplink grant as the action, consider that the second uplink grant is used for retransmission.

[0972] As an example, the action of "considering that the first NDI has not been toggled as a response to receiving the second uplink grant" includes: if the second uplink grant is received on the PDCCH for the target identity of the MAC entity, and if the second uplink grant is for the target identity of the MAC entity, and if the previous uplink grant for the same HARQ process delivered to the HARQ entity is an uplink grant for the source identity of the MAC entity, then regardless of the value of the NDI, consider that the NDI of the corresponding HARQ process has not been toggled.

[0973] As an example, the action of considering that the first NDI has not been toggled includes: consider the first NDI not to have been toggled.

[0974] As an example, the action of considering that the first NDI has not been toggled includes: consider that the value of the first NDI has not changed.

[0975] Those of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by a program instructing relevant hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk, or an optical disc, etc. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above embodiments can be implemented in hardware form or in the form of a software function module. This application is not limited to any specific form of the 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 control airplanes, aircraft, small airplanes, mobile phones, tablet computers, laptops, vehicle-mounted communication devices, wireless sensors, network cards, Internet of Things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, network cards, vehicle-mounted communication devices, low-cost mobile phones, low-cost tablet computers, and other wireless communication devices. The base station or system device in this application includes, but is not limited to, macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR Node B) NR node B, TRP (Transmitter Receiver Point), and other wireless communication devices.

[0976] The above description is only a preferred embodiment of the present application and is not intended to limit the protection scope of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A first node for use in wireless communication, characterized in that, comprising: a first receiver, receiving first signaling, the first signaling indicating a target identifier; monitoring a first PDCCH, the first PDCCH being associated with a first downlink RS resource, the first downlink RS resource being associated with a first PCI; receiving second signaling, the second signaling being used to indicate a second PCI; in response to receiving the second signaling, monitoring a second PDCCH and ceasing to monitor the first PDCCH, the second PDCCH being associated with a second downlink RS resource, the second downlink RS resource being associated with the second PCI; wherein, the first signaling includes an RRC message; the second signaling includes signaling below the RRC layer; the first PDCCH is scrambled with a source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; the source identifier and the target identifier are each an RNTI.

2. The first node according to claim 1, characterized in that, comprising: the first receiver, in response to receiving the second signaling, treating a first secondary cell as a deactivated state; wherein, the first secondary cell and the cell identified by the first PCI belong to the same cell group.

3. The first node according to claim 2, characterized in that, the first secondary cell and the cell identified by the second PCI belong to different TAGs.

4. The first node according to claim 2 or 3, characterized in that, treating the first secondary cell as a deactivated state includes stopping the sCellDeactivationTimer associated with the first secondary cell or stopping the bwp-InactivityTimer associated with the first secondary cell or deactivating any active BWP associated with the first secondary cell or deleting the configured downlink allocation and configured uplink grant type 2 associated with the first secondary cell or deleting the PUSCH resources for semi-persistent CSI reporting associated with the first secondary cell or suspending the configured uplink grant type 1 associated with the first secondary cell or flushing all HARQ buffers associated with the first secondary cell or if there is a continuous LBT failure triggered for the first secondary cell, canceling at least one of the continuous LBT failures triggered for the first secondary cell.

5. The first node according to any one of claims 1 to 4, characterized in that, comprising: the first receiver, in response to receiving the second signaling, setting the C-RNTI to the target identifier.

6. The first node according to any one of claims 1 to 5, characterized in that, comprising: the first receiver, receiving a first uplink grant and a second uplink grant, the first uplink grant being associated with the source identifier, the second uplink grant being associated with the target identifier; in response to receiving the first uplink grant and the second uplink grant, considering that the first NDI has flipped; Wherein, the first uplink grant and the second uplink grant are associated with the same HARQ process; The reception time of the first uplink grant is earlier than the reception time of the second uplink grant.

7. The first node according to any one of claims 1 to 6, characterized in that, comprising: The first receiver, in response to receiving the second signaling, clears a first counter; The first counter is maintained at the MAC layer.

8. The first node according to claim 7, characterized in that, comprising: The first receiver, receives a first type of reference signal, the first type of reference signal is associated with the second PCI, and the measurement for the first type of reference signal is used to determine to update the first counter; The first transmitter, when the first counter reaches a first value, initiates a first random access procedure; In response to initiating the first random access procedure, transmits a first radio signal, the first radio signal is associated with the first PCI; Wherein, the first value is a positive integer; the first type of reference signal has nothing to do with the first PCI.

9. The first node according to claim 8, characterized in that, comprising: The first transmitter, transmits a second radio signal, the second radio signal includes the source identifier; Wherein, the second radio signal belongs to the first random access procedure; the second radio signal is transmitted after the first radio signal.

10. The first node according to any one of claims 7 to 9, characterized in that, The first counter is BFI_COUNTER.

11. The first node according to any one of claims 7 to 9, characterized in that, The first counter is LBT_COUNTER.

12. The first node according to any one of claims 1 to 11, characterized in that, comprising: The first receiver, receives a first uplink grant and a second uplink grant, the first uplink grant is associated with the source identifier, and the second uplink grant is associated with the target identifier; In response to receiving the first uplink grant and the second uplink grant, it is considered that the first NDI has not flipped; Wherein, the first uplink grant and the second uplink grant are associated with the same HARQ process; The reception time of the first uplink grant is earlier than the reception time of the second uplink grant.

13. The first node according to any one of claims 2 to 4, characterized in that, The source identifier is the C-RNTI of the first node in the cell identified by the first PCI; the target identifier is the C-RNTI of the first node in the cell identified by the second PCI.

14. The first node according to any one of claims 1 to 13, characterized in that, One search space associated with the first PDCCH is different from one search space associated with the second PDCCH.

15. The first node according to any one of claims 1 to 14, characterized in that, The CORESET associated with the first PDCCH is different from the CORESET associated with the second PDCCH.

16. The first node according to any one of claims 1 to 15, wherein, the first PDCCH indicates scheduling information of the second signaling, and the scheduling information includes at least one of a time domain position, a frequency domain position, a modulation and coding format, a redundancy version, a new data flag, or a HARQ process number.

17. The first node according to any one of claims 1 to 16, wherein, the second signaling includes a MAC CE; the second signaling includes a first field, and the first field is set to a first configuration index, and the first configuration index corresponds to the cell identified by the second PCI, and the first configuration index is a non-negative integer.

18. The first node according to claim 17, wherein, the first configuration index is configured by an RRC message; the first configuration index is an index in an index set.

19. A second node used for wireless communication, wherein, comprising: a second transmitter that sends a first signaling indicating a target identifier; sending a first PDCCH, the first PDCCH being associated with a first downlink RS resource, and the first downlink RS resource being associated with a first PCI; sending a second signaling, the second signaling being used to indicate a second PCI; wherein, in response to receiving the second signaling, a second PDCCH is monitored and the first PDCCH is abandoned from being monitored, the second PDCCH being associated with a second downlink RS resource, and the second downlink RS resource being associated with the second PCI; the first signaling includes an RRC message; the second signaling includes a signaling below the RRC layer; the first PDCCH is scrambled with a source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; the source identifier and the target identifier are each an RNTI.

20. The second node according to claim 19, wherein, in response to receiving the second signaling, a first secondary cell is regarded as being in a deactivated state; wherein, the first secondary cell and the cell identified by the first PCI belong to the same cell group.

21. The second node according to claim 20, wherein, the first secondary cell and the cell identified by the second PCI belong to different TAGs.

22. The second node according to claim 20 or 21, wherein, Regarding the first secondary cell as being in a deactivated state includes stopping the sCellDeactivationTimer associated with the first secondary cell, or stopping the bwp-InactivityTimer associated with the first secondary cell, or deactivating any active BWP associated with the first secondary cell, or deleting the configured downlink allocation and configured uplink grant type 2 associated with the first secondary cell, or deleting the PUSCH resources for semi-persistent CSI reporting associated with the first secondary cell, or suspending the configured uplink grant type 1 associated with the first secondary cell, or flushing all HARQ buffers associated with the first secondary cell, or canceling at least one of the consecutive LBT failures triggered for the first secondary cell if there are any consecutive LBT failures triggered for the first secondary cell.

23. The second node according to any one of claims 19 to 22, wherein, in response to receiving the second signaling, the C-RNTI is set to the target identifier.

24. The second node according to any one of claims 19 to 23, wherein, comprises: the second transmitter that sends a first uplink grant, the first uplink grant being associated with the source identifier; wherein, in response to receiving the first uplink grant and the second uplink grant, the first NDI is considered to have flipped; the second uplink grant is associated with the target identifier; the first uplink grant and the second uplink grant are associated with the same HARQ process; the reception time of the first uplink grant is earlier than the reception time of the second uplink grant.

25. The second node according to any one of claims 19 to 24, wherein, in response to receiving the second signaling, the first counter is cleared; the first counter is maintained at the MAC layer.

26. The second node according to claim 25, wherein, comprises: the second receiver that receives a first radio signal, the first radio signal being associated with the first PCI; wherein, a first type of reference signal is received, the first type of reference signal being associated with the second PCI, and the measurement for the first type of reference signal is used to determine to update the first counter; when the first counter reaches a first value, a first random access procedure is initiated; in response to initiating the first random access procedure, the first radio signal is sent; the first value is a positive integer; the first type of reference signal has nothing to do with the first PCI.

27. The second node according to claim 26, wherein, comprises: the second receiver that receives a second radio signal, the second radio signal including the source identifier; wherein, the second radio signal belongs to the first random access procedure; the second radio signal is sent after the first radio signal.

28. The second node according to any one of claims 25 to 27, wherein, the first counter is BFI_COUNTER.

29. The second node according to any one of claims 25 to 27, wherein, the first counter is LBT_COUNTER.

30. The second node according to any one of claims 19 to 29, wherein, comprising: the second transmitter that sends a first uplink grant, the first uplink grant being associated with the source identifier; wherein, in response to receiving the first uplink grant and the second uplink grant, a first NDI is considered not flipped; the second uplink grant is associated with the target identifier; the first uplink grant and the second uplink grant are associated with the same HARQ process; and the reception time of the first uplink grant is earlier than the reception time of the second uplink grant.

31. The second node according to any one of claims 20 to 22, wherein, the source identifier is the C-RNTI of the receiver of the first signaling in the cell identified by the first PCI; the target identifier is the C-RNTI of the receiver of the first signaling in the cell identified by the second PCI.

32. The second node according to any one of claims 19 to 31, wherein, a search space associated with the first PDCCH is different from a search space associated with the second PDCCH.

33. The second node according to any one of claims 19 to 32, wherein, a CORESET associated with the first PDCCH is different from a CORESET associated with the second PDCCH.

34. The second node according to any one of claims 19 to 33, wherein, the first PDCCH indicates scheduling information of the second signaling, the scheduling information including at least one of a time domain position, or a frequency domain position, or a modulation and coding format, or a redundancy version, or a new data flag, or a HARQ process number.

35. The second node according to any one of claims 19 to 34, wherein, the second signaling includes a MAC CE; the second signaling includes a first field, the first field being set to a first configuration index, the first configuration index corresponding to the cell identified by the second PCI, and the first configuration index being a non-negative integer.

36. The second node according to claim 35, wherein, the first configuration index is configured by an RRC message; the first configuration index is an index in an index set.

37. A method in a first node for use in wireless communication, wherein, comprising: receiving a first signaling that indicates a target identifier; monitoring a first PDCCH, the first PDCCH being associated with a first downlink RS resource, the first downlink RS resource being associated with a first PCI; receiving a second signaling that is used to indicate a second PCI; In response to receiving the second signaling, listen for the second PDCCH and stop listening for the first PDCCH, where the second PDCCH is associated with a second downlink RS resource, and the second downlink RS resource is associated with the second PCI; Wherein, the first signaling includes an RRC message; the second signaling includes signaling below the RRC layer; the first PDCCH is scrambled with a source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; the source identifier and the target identifier are each an RNTI.

38. The method in a first node for wireless communication according to claim 37, characterized in that, comprising: In response to receiving the second signaling, consider a first secondary cell as a deactivated state; Wherein, the first secondary cell and the cell identified by the first PCI belong to the same cell group.

39. The method in a first node for wireless communication according to claim 38, characterized in that, The first secondary cell and the cell identified by the second PCI belong to different TAGs.

40. The method in a first node for wireless communication according to claim 38 or 39, characterized in that, The act of considering the first secondary cell as a deactivated state includes stopping the sCellDeactivationTimer associated with the first secondary cell or stopping the bwp-InactivityTimer associated with the first secondary cell or deactivating any active BWP associated with the first secondary cell or deleting the configured downlink allocation and configured uplink grant type 2 associated with the first secondary cell or deleting the PUSCH resources for semi-persistent CSI reporting associated with the first secondary cell or suspending the configured uplink grant type 1 associated with the first secondary cell or flushing all HARQ buffers associated with the first secondary cell or canceling at least one of the continuous LBT failures triggered for the first secondary cell if there are continuous LBT failures triggered for the first secondary cell.

41. The method in a first node for wireless communication according to any one of claims 37 to 40, characterized in that, comprising: In response to receiving the second signaling, set the C-RNTI to the target identifier.

42. The method in a first node for wireless communication according to any one of claims 37 to 41, characterized in that, comprising: Receive a first uplink grant and a second uplink grant, the first uplink grant being associated with the source identifier and the second uplink grant being associated with the target identifier; In response to receiving the first uplink grant and the second uplink grant, consider that the first NDI has flipped; Wherein, the first uplink grant and the second uplink grant are associated with the same HARQ process; The reception time of the first uplink grant is earlier than the reception time of the second uplink grant.

43. The method in the first node for wireless communication according to any one of claims 37 to 42, characterized in that, comprising: as a response to receiving the second signaling, clearing a first counter; the first counter is maintained at the MAC layer.

44. The method in the first node for wireless communication according to claim 43, characterized in that, comprising: receiving a first type of reference signal, the first type of reference signal being associated with the second PCI, and measurements for the first type of reference signal are used to determine an update to the first counter; when the first counter reaches a first value, initiating a first random access procedure; as a response to initiating the first random access procedure, sending a first wireless signal, the first wireless signal being associated with the first PCI; wherein, the first value is a positive integer; the first type of reference signal has nothing to do with the first PCI.

45. The method in the first node for wireless communication according to claim 44, characterized in that, comprising: sending a second wireless signal, the second wireless signal including the source identifier; wherein, the second wireless signal belongs to the first random access procedure; the second wireless signal is sent after the first wireless signal.

46. The method in the first node for wireless communication according to any one of claims 43 to 45, characterized in that, the first counter is BFI_COUNTER.

47. The method in the first node for wireless communication according to any one of claims 43 to 45, characterized in that, the first counter is LBT_COUNTER.

48. The method in the first node for wireless communication according to any one of claims 37 to 47, characterized in that, comprising: receiving a first uplink grant and a second uplink grant, the first uplink grant being associated with the source identifier, and the second uplink grant being associated with the target identifier; as a response to receiving the first uplink grant and the second uplink grant, considering that the first NDI has not flipped; wherein, the first uplink grant and the second uplink grant are associated with the same HARQ process; the receiving time of the first uplink grant is earlier than the receiving time of the second uplink grant.

49. The method in the first node for wireless communication according to any one of claims 38 to 40, characterized in that, the source identifier is the C-RNTI of the first node in the cell identified by the first PCI; the target identifier is the C-RNTI of the first node in the cell identified by the second PCI.

50. The method in the first node for wireless communication according to any one of claims 37 to 49, characterized in that, one search space associated with the first PDCCH is different from one search space associated with the second PDCCH.

51. The method in the first node for wireless communication according to any one of claims 37 to 50, characterized in that, The CORESET associated with the first PDCCH is different from the CORESET associated with the second PDCCH.

52. The method in a first node for wireless communication according to any one of claims 37 to 51, wherein, the first PDCCH indicates scheduling information of the second signaling, and the scheduling information includes at least one of a time domain position, a frequency domain position, a modulation and coding format, a redundancy version, a new data flag, or a HARQ process number.

53. The method in a first node for wireless communication according to any one of claims 37 to 52, wherein, the second signaling includes a MAC CE; a first domain is included in the second signaling, and the first domain is set to a first configuration index, and the first configuration index corresponds to the cell identified by the second PCI, and the first configuration index is a non - negative integer.

54. The method in a first node for wireless communication according to claim 53, wherein, the first configuration index is configured by an RRC message; the first configuration index is one of an index set.

55. A method in a second node for wireless communication, wherein, comprising: sending a first signaling, the first signaling indicating a target identifier; sending a first PDCCH, the first PDCCH being associated with a first downlink RS resource, and the first downlink RS resource being associated with a first PCI; sending a second signaling, the second signaling being used to indicate a second PCI; wherein, in response to receiving the second signaling, a second PDCCH is monitored and monitoring of the first PDCCH is abandoned, the second PDCCH being associated with a second downlink RS resource, and the second downlink RS resource being associated with the second PCI; the first signaling includes an RRC message; the second signaling includes a signaling below the RRC layer; the first PDCCH is scrambled with a source identifier; the second PDCCH is scrambled with the target identifier; the source identifier and the target identifier are different; the source identifier and the target identifier are each an RNTI.

56. The method in a second node for wireless communication according to claim 55, wherein, in response to receiving the second signaling, a first secondary cell is regarded as in a deactivated state; wherein the first secondary cell and the cell identified by the first PCI belong to the same cell group.

57. The method in a second node for wireless communication according to claim 56, wherein, the first secondary cell and the cell identified by the second PCI belong to different TAGs.

58. The method in a second node for wireless communication according to claim 56 or 57, wherein, Regarding the first secondary cell as a deactivated state includes stopping the sCellDeactivationTimer associated with the first secondary cell, or stopping the bwp-InactivityTimer associated with the first secondary cell, or deactivating any active BWP associated with the first secondary cell, or deleting the configured downlink allocation and configured uplink grant type 2 associated with the first secondary cell, or deleting the PUSCH resources for semi-persistent CSI reporting associated with the first secondary cell, or suspending the configured uplink grant type 1 associated with the first secondary cell, or flushing all HARQ buffers associated with the first secondary cell, or canceling at least one of the continuous LBT failures triggered for the first secondary cell if there is a continuous LBT failure triggered for the first secondary cell.

59. The method in a second node for wireless communication according to any one of claims 55 to 58, wherein, In response to receiving the second signaling, the C-RNTI is set to the target identifier.

60. The method in a second node for wireless communication according to any one of claims 55 to 59, wherein, includes: Transmitting a first uplink grant, the first uplink grant being associated with the source identifier; wherein, in response to receiving the first uplink grant and the second uplink grant, the first NDI is considered to have flipped; the second uplink grant is associated with the target identifier; the first uplink grant and the second uplink grant are associated with the same HARQ process; the reception time of the first uplink grant is earlier than the reception time of the second uplink grant.

61. The method in a second node for wireless communication according to any one of claims 55 to 60, wherein, In response to receiving the second signaling, the first counter is cleared; the first counter is maintained at the MAC layer.

62. The method in a second node for wireless communication according to claim 61, wherein, includes: Receiving a first radio signal, the first radio signal being associated with the first PCI; wherein, a first type of reference signal is received, the first type of reference signal being associated with the second PCI, and the measurement for the first type of reference signal is used to determine to update the first counter; When the first counter reaches a first value, a first random access procedure is initiated; in response to initiating the first random access procedure, the first radio signal is transmitted; the first value is a positive integer; the first type of reference signal has nothing to do with the first PCI.

63. The method in a second node for wireless communication according to claim 62, wherein, includes: Receiving a second radio signal, the second radio signal including the source identifier; wherein, the second radio signal belongs to the first random access procedure; the second radio signal is transmitted after the first radio signal.

64. The method in a second node for wireless communication according to any one of claims 61 to 63, characterized in that, the first counter is BFI_COUNTER.

65. The method in a second node for wireless communication according to any one of claims 61 to 63, characterized in that, the first counter is LBT_COUNTER.

66. The method in a second node for wireless communication according to any one of claims 55 to 64, characterized in that, comprising: sending a first uplink grant associated with the source identifier; wherein, in response to receiving the first uplink grant and the second uplink grant, the first NDI is considered not flipped; the second uplink grant is associated with the target identifier; the first uplink grant and the second uplink grant are associated with the same HARQ process; and the reception time of the first uplink grant is earlier than the reception time of the second uplink grant.

67. The method in a second node for wireless communication according to any one of claims 56 to 58, characterized in that, the source identifier is the C-RNTI of the receiver of the first signaling in the cell identified by the first PCI; the target identifier is the C-RNTI of the receiver of the first signaling in the cell identified by the second PCI.

68. The method in a second node for wireless communication according to any one of claims 55 to 67, characterized in that, one search space associated with the first PDCCH is different from one search space associated with the second PDCCH.

69. The method in a second node for wireless communication according to any one of claims 55 to 68, characterized in that, one CORESET associated with the first PDCCH is different from one CORESET associated with the second PDCCH.

70. The method in a second node for wireless communication according to any one of claims 55 to 69, characterized in that, the first PDCCH indicates scheduling information of the second signaling, and the scheduling information includes at least one of a time domain position, a frequency domain position, a modulation and coding format, a redundancy version, a new data flag, or a HARQ process number.

71. The method in a second node for wireless communication according to any one of claims 55 to 70, characterized in that, the second signaling includes a MAC CE; the second signaling includes a first field, and the first field is set to a first configuration index corresponding to the cell identified by the second PCI, and the first configuration index is a non-negative integer.

72. The method in a second node for wireless communication according to claim 71, characterized in that, the first configuration index is configured by an RRC message; the first configuration index is an index in an index set.

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