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

Abstract

The application discloses a method and device used in a communication node for wireless communication. The communication node receives a first signal; receives a first message, the first message comprising configuration information of a second cell; applies the configuration information of the second cell after the first message is received; transmits a second signal; the first signal triggers the second signal; the second signal triggers the first message; the transmitter of the first signal and the receiver of the second signal are both a second node; the second node is a maintenance base station of the second cell; and the configuration information of the second cell comprises a first identity of the first node. The scheme has the advantages of facilitating the fusion of communication and sensing networks, reducing the delay of UE switching, and improving the success probability of UE switching.

Description

Technical Field

[0001] This application relates to transmission methods and apparatus in wireless communication systems, and more particularly to methods and apparatus for mobility. Background Technology

[0002] With the continuous development of wireless communication, the requirements for mobility, transmission latency, and system capacity are becoming increasingly stringent. The 3GPP RAN (Radio Access Network) #94e meeting decided to study L1 / L2 Triggered Mobility (LTM) in the "Further NR mobility enhancements" work item (WI). On the other hand, 3GPP is considering applying AI (Artificial Intelligence) or ML (Machine Learning) to mobility.

[0003] With the increasing demand for sensing capabilities, the trend of integrating sensing and communication capabilities in networks is becoming increasingly apparent. This has sparked extensive discussions at the 3GPPSA (Service & System Aspects) WG2#158 meeting, and 3GPP RAN is also about to conduct channel modeling for ISAC (Integrated Sensing and Communication).

[0004] The existing handover triggering and execution conditions in mobility do not take into account the potential introduction of ISAC capabilities in the network and the need for proactive handover. This results in high handover latency and low handover success rate due to RRC reconfiguration based solely on the source cell. Summary of the Invention

[0005] The inventors discovered that in the existing handover preparation process, the source base station sends a handover request command to the target base station. Upon receiving the handover request command, the target base station sends a handover request acknowledgment command back to the source base station. Only after receiving the handover request acknowledgment can the source base station configure the target cell / candidate cell for the UE. Network-side signaling interaction latency affects the timing of UE handover, causing unnecessary, premature, or late handovers, or handover failures, thus impacting mobility robustness. Therefore, it is necessary to further research methods to improve mobility robustness, especially, but not limited to, how to utilize ISAC to assist in improving mobility performance when it is used in existing systems.

[0006] To address the aforementioned problems, this application provides a solution. While the NR system is used as an example in the problem description, this application is also applicable to scenarios such as LTE (Long-Term Evolution) or LTE-A (Long-Term Evolution Advanced) systems, achieving similar technical effects to NR systems. Furthermore, although this application provides a specific implementation for 3GPP systems, it can also be used in non-3GPP system scenarios, achieving similar technical effects. Furthermore, adopting a unified design scheme for different scenarios helps reduce hardware complexity and cost. Furthermore, although this application provides a specific implementation for ISAC, it can also be used in non-ISAC scenarios, achieving similar technical effects. Furthermore, although this application is initially intended for the Uu air interface, it can also be used for the PC5 interface, achieving similar technical effects to the Uu air interface. Furthermore, although this application was initially intended for terminal and base station scenarios, it is also applicable to V2X (Vehicle-to-Everything) scenarios, communication scenarios between terminals and relays, and communication scenarios between relays and base stations, achieving similar technical effects. Furthermore, although this application was initially intended for terminal and base station scenarios, it is also applicable to IAB (Integrated Access and Backhaul) communication scenarios, achieving similar technical effects. Furthermore, although this application was initially intended for terrestrial network (TN) scenarios, it is also applicable to non-terrestrial network (NTN) communication scenarios, achieving similar technical effects. In addition, adopting a unified solution for different scenarios helps reduce hardware complexity and cost.

[0007] As an example, the interpretation of the terminology in this application is based on the definitions in the 3GPP specification protocol TS36 series.

[0008] As an example, the interpretation of terms in this application is based on the definitions in the 3GPP specification protocol TS38 series.

[0009] As an example, the interpretation of terms in this application is based on the definitions in the 3GPP specification protocol TS37 series.

[0010] It should be noted that, unless otherwise specified, the embodiments and features in any node of this application can be applied to any other node. Furthermore, unless otherwise specified, the embodiments and features in any embodiment of this application can be arbitrarily combined with each other.

[0011] This application discloses a method used in a first node of wireless communication, characterized by comprising:

[0012] Receive a first signal; receive a first message, the first message including configuration information of a second cell; after the first message is received, apply the configuration information of the second cell; send a second signal; wherein the first signal triggers the second signal; the second signal triggers the first message; the sender of the first signal and the receiver of the second signal are both second nodes; the second node is a sustaining base station of the second cell; the configuration information of the second cell includes the first identity of the first node.

[0013] As an example, the problems to be solved by this application include: if the ISAC function is to be introduced into NR, how to implement the sensing function of the ISAC system, and how to use the sensing information of the ISAC system to assist the base station in making handover decisions.

[0014] As an example, the features of the above method include: the first message sent by the third node is associated with the first signal sent by the second node and the second signal received.

[0015] As an example, the advantages of the above method include: reduced signaling interaction.

[0016] As an example, the advantages of the above method include: avoiding unnecessary switching, avoiding premature switching, avoiding late switching, or avoiding switching failure.

[0017] As an example, the advantages of the above method include: it helps to increase the probability of successful handover.

[0018] As an example, the advantages of the above method include: it helps to reduce handover latency.

[0019] As an example, the advantages of the above method include: it facilitates network self-configuration and self-optimization.

[0020] According to one aspect of this application, the first message being received triggers the application of the configuration information of the second cell to perform the behavior.

[0021] As an example, the advantages of the above method include: it facilitates routine handover for the UE.

[0022] As an example, the advantages of the above method include: reducing modifications to existing protocol content and simplifying implementation.

[0023] According to one aspect of this application, after the first message is received, a first signaling is received, the first signaling being a protocol layer signaling below the RRC sublayer, the first signaling indicating the second cell; wherein the first signaling triggers the action to apply the configuration information of the second cell.

[0024] As an example, the advantages of the above method include: it facilitates LTM handover for the UE.

[0025] As an example, the advantages of the above method include: it helps to reduce the delay caused by L3 measurement filtering.

[0026] As an example, the advantages of the above method include: it helps to reduce handover latency.

[0027] According to one aspect of this application, after the first message is received, the configuration information of the second cell is applied as a response to the fulfillment of the first execution condition; wherein the first message includes the first execution condition.

[0028] As an example, the advantages of the above method include: it facilitates UEs to perform Conditional Handover (CHO) or Conditional LTM handover.

[0029] As an example, the advantages of the above method include: it facilitates conditional handover for the UE.

[0030] As an example, the advantages of the above method include: it facilitates conditional LTM handover for the UE.

[0031] As an example, the advantages of the above method include: it helps to reduce handover latency.

[0032] According to one aspect of this application, a fourth message is received, the fourth message including a second identity of the first node; wherein the second signal carries the second identity of the first node.

[0033] As an example, the advantages of the above method include: improving the accuracy of base station identification of sensed targets.

[0034] As an example, the advantages of the above method include: it facilitates the base station's perception of multiple targets.

[0035] According to one aspect of this application, the second signal triggering the first message means that: the second signal triggers the second message, and the second message triggers the first message; the recipient of the second message is the sustaining base station of the first cell; and the sender of the second message is the sustaining base station of the second cell.

[0036] As an example, the advantages of the above method include: the base station makes handover decisions by combining multi-source information, which helps to improve the success rate of handover.

[0037] As an example, the advantages of the above method include: it helps to reduce the delay of switching.

[0038] According to one aspect of this application, the third message triggers the first signal; the recipient of the third message is the sustaining base station of the second cell; and the sender of the third message is the sustaining base station of the first cell.

[0039] As an example, the advantages of the above method include: it facilitates the configuration of sensing signals and avoids resource waste caused by normally open signals.

[0040] This application discloses a method used in a second node for wireless communication, characterized by comprising:

[0041] Sending a first signal; receiving a second signal; wherein, the receiver of the first signal receives a first message in a first cell, the first message including configuration information of a second cell; after the first message is received, the receiver of the first signal applies the configuration information of the second cell; the first signal triggers the second signal; the second signal triggers the first message; the second node is a sustaining base station of the second cell.

[0042] According to one aspect of this application, a second message is sent, the second message including the configuration information of the second message; wherein, the second signal triggering the first message means: the second signal triggers the second message, and the second message triggers the first message; the recipient of the second message is the sustaining base station of the first cell.

[0043] According to one aspect of this application, a third message is received; wherein the third message triggers the first signal; and the sender of the third message is the sustaining base station of the first cell.

[0044] According to one aspect of this application, the first message being received triggers the receiver of the first signal to apply the configuration information of the second cell.

[0045] According to one aspect of this application, after the first message is received, the receiver of the first signal receives a first signaling, the first signaling being protocol layer signaling below the RRC sublayer, the first signaling indicating the second cell; the first signaling triggers the receiver of the first signal to apply the configuration information of the second cell.

[0046] According to one aspect of this application, it is characterized by comprising:

[0047] After the first message is received, in response to the fulfillment of the first execution condition, the receiver of the first signal applies the configuration information of the second cell; the first message includes the first execution condition.

[0048] According to one aspect of this application, the receiver of the first signal receives a fourth message, the fourth message including a second identity of the receiver of the first signal; the second signal carries the second identity of the receiver of the first signal.

[0049] This application discloses a method used in a third node for wireless communication, characterized by comprising:

[0050] According to one aspect of this application, a first message is sent in a first cell, the first message including configuration information of a second cell; wherein, after the first message is received, the receiver of the first message applies the configuration information of the second cell; a first signal triggers a second signal; the second signal triggers the first message; the sender of the first signal and the receiver of the second signal are both second nodes; the second node is a sustaining base station of the second cell.

[0051] According to one aspect of this application, a fourth message is sent, the fourth message including a second identity of the recipient of the first message; wherein the second signal carries the second identity of the recipient of the first message.

[0052] According to one aspect of this application, the second message is received, the second message including the configuration information of the second message; wherein, the second signal triggering the first message means: the second signal triggers the second message, and the second message triggers the first message; the recipient of the second message is the sustaining base station of the first cell.

[0053] According to one aspect of this application, a third message is sent; wherein the third message triggers the first signal; and the recipient of the third message is the sustaining base station of the second cell.

[0054] According to one aspect of this application, after the first message is sent, a first signaling is sent, the first signaling being a protocol layer signaling below the RRC sublayer, the first signaling indicating the second cell; wherein the first signaling triggers the recipient of the first message to apply the configuration information of the second cell.

[0055] According to one aspect of this application, the receipt of the first message triggers the recipient of the first message to apply the configuration information of the second cell.

[0056] According to one aspect of this application, after the first message is received, in response to the fulfillment of a first execution condition, the recipient of the first message applies the configuration information of the second cell; wherein the first message includes the first execution condition.

[0057] This application discloses a first node used for wireless communication, characterized in that it comprises:

[0058] A first receiver receives a first signal; receives a first message, the first message including configuration information of a second cell; and after the first message is received, applies the configuration information of the second cell.

[0059] The first transmitter sends the second signal;

[0060] Wherein, the first signal triggers the second signal; the second signal triggers the first message; the sender of the first signal and the receiver of the second signal are both second nodes; the second node is the sustaining base station of the second cell; the configuration information of the second cell includes the first identity of the first node.

[0061] This application discloses a second node used for wireless communication, characterized in that it comprises:

[0062] The second transmitter sends the first signal;

[0063] The second receiver receives the second signal;

[0064] Wherein, the receiver of the first signal receives a first message in a first cell, the first message including configuration information of a second cell; after the first message is received, the receiver of the first signal applies the configuration information of the second cell; the first signal triggers the second signal; the second signal triggers the first message; the second node is a sustaining base station of the second cell.

[0065] This application discloses a third node used for wireless communication, characterized in that it comprises:

[0066] The third processor sends a first message in the first cell, the first message including the configuration information of the second cell;

[0067] Wherein, after the first message is received, the recipient of the first message applies the configuration information of the second cell; the first signal triggers the second signal; the second signal triggers the first message; the sender of the first signal and the recipient of the second signal are both second nodes; the second node is the sustaining base station of the second cell.

[0068] As an example, compared with conventional solutions, this application has the following advantages:

[0069] - It facilitates the optimization of the handover process by combining it with the ISAC function;

[0070] - It helps increase the success rate of UE handover;

[0071] - It helps reduce the latency of UE handover;

[0072] - It facilitates network convergence;

[0073] - It facilitates network self-configuration and self-optimization. Attached Figure Description

[0074] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0075] Figure 1 A flowchart of communication according to an embodiment of this application is shown;

[0076] Figure 2 A schematic diagram of a network architecture according to an embodiment of this application is shown;

[0077] Figure 3 A schematic diagram of an embodiment of a wireless protocol architecture for the user plane and control plane according to an embodiment of this application is shown;

[0078] Figure 4 A schematic diagram of a first communication device and a second communication device according to an embodiment of this application is shown;

[0079] Figure 5 A flowchart illustrating a wireless signal transmission process according to an embodiment of this application is shown;

[0080] Figure 6 A schematic diagram is shown illustrating the application of configuration information of the second cell by receiving the first message according to an embodiment of this application, which triggers the behavior.

[0081] Figure 7 A schematic diagram illustrating the application of second cell configuration information triggered by a first signaling according to an embodiment of this application is shown in the attached diagram. Figure 7 As shown;

[0082] Figure 8 A schematic diagram is shown illustrating the application of the configuration information of the second cell in response to the fulfillment of a first execution condition according to an embodiment of this application;

[0083] Figure 9 A structural block diagram of a processing apparatus for a first node according to an embodiment of this application is shown;

[0084] Figure 10 A structural block diagram of a processing apparatus for a second node according to an embodiment of this application is shown;

[0085] Figure 11 A structural block diagram of a processing apparatus for a third node according to an embodiment of this application is shown;

[0086] Figure 12 A schematic diagram showing the time-domain resources occupied by a first signal and a second signal according to an embodiment of this application is shown. Detailed Implementation

[0087] The technical solution of this application will be further described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0088] Example 1

[0089] Example 1 illustrates a communication flowchart according to an embodiment of this application, as shown in the attached diagram. Figure 1 As shown. (Attached) Figure 1 In the diagram, each box represents a step. It is particularly important to emphasize that the order of the boxes does not represent the chronological order of the steps they represent.

[0090] In Embodiment 1, the first node in this application receives a first signal in step 101; sends a second signal in step 102; receives a first message in step 103, the first message including configuration information of the second cell; and applies the configuration information of the second cell in step 104 after the first message is received. The first signal triggers the second signal; the second signal triggers the first message; both the sender of the first signal and the receiver of the second signal are the second node; the second node is the sustaining base station of the second cell; and the configuration information of the second cell includes the first identity of the first node.

[0091] In one embodiment, the first signal is passively received by the first node.

[0092] As an example, the first signal is detected by the first node.

[0093] As an example, the first signal is a modulated signal.

[0094] As a sub-example of the above embodiments, the modulation is spatial modulation.

[0095] As a sub-example of the above embodiment, the modulation is OFDM (Orthogonal Frequency Division Multiplexing) modulation.

[0096] As a sub-example of the above embodiment, the modulation is OTFS (Orthogonal Time Frequency Space) modulation.

[0097] As a sub-example of the above embodiments, the modulation is FMCW (Frequency Modulated Continuous Wave) modulation.

[0098] As an example, the first signal is an unmodulated signal.

[0099] As an example, the first signal is a multi-carrier signal.

[0100] As an example, the first signal is a single-carrier signal.

[0101] As an example, the first signal is an OFDM signal.

[0102] As an example, the first signal is not an OFDM signal.

[0103] As an example, the first signal is an OTFS signal.

[0104] As an example, the first signal is a pulse signal.

[0105] As an example, the first signal is an FMCW signal.

[0106] As an example, the first signal is a physical layer signal.

[0107] As an example, the first signal is a radar signal.

[0108] As an example, the first signal is a reference signal (RS).

[0109] As a sub-implementation of the above embodiments, the first signal is SSB.

[0110] As a sub-implementation of the above embodiments, the first signal is PRS.

[0111] As a sub-implementation of the above embodiments, the first signal is CSI-RS.

[0112] As a sub-implementation of the above embodiments, the first signal is CRS.

[0113] As a sub-example of the above embodiment, the first signal is DMRS in PDSCH.

[0114] As a sub-implementation of the above embodiments, the first signal is a dedicated reference signal for sensing.

[0115] As an example, the first signal is a signal in the PDSCH.

[0116] As an example, the first signal is a signal in the PDSCH specifically used for sensing.

[0117] As one embodiment, the first signal is transmitted over a dedicated physical channel for sensing.

[0118] As an example, the first signal carries user data.

[0119] As an example, the first signal does not carry user data.

[0120] As an example, the first signal carries information.

[0121] As an example, the first signal does not carry information.

[0122] As an example, the first signal is a signal in a dedicated physical channel for sensing.

[0123] As an example, the first signal is pre-configured.

[0124] As an example, the first signal is periodic.

[0125] As an example, the first signal is semi-continuous.

[0126] As an example, the first signal is one of a plurality of signals in a first set of signals.

[0127] As an example, the first set of signals is periodic.

[0128] As an example, the first set of signals is pre-configured.

[0129] As an example, the first signal is transmitted in a beam scanning manner.

[0130] As an example, the first signal is transmitted using digital beamforming.

[0131] As an example, the first signal is transmitted in an omnidirectional manner.

[0132] As an example, the second node senses the first node through at least the first signal.

[0133] As one embodiment, the second node detects the first node through at least the first signal.

[0134] As one embodiment, the second node tracks the first node via at least the first signal.

[0135] As one embodiment, the second node positions the first node using at least the first signal.

[0136] As an example, the action of receiving the first signal means measuring the first signal.

[0137] As one embodiment, the action of receiving the first signal means searching for the first signal.

[0138] As one embodiment, receiving the first signal means detecting the first signal.

[0139] As an example, the first message includes at least one RRC message.

[0140] As an example, the first message is an RRC message.

[0141] As an example, the first message is an RRC IE (Information Element).

[0142] As an example, the first message is a MAC CE.

[0143] As an example, the first message is UE-specific (UE-Specifc).

[0144] As an example, the first message is transmitted via DCCH (Dedicated Control Channel).

[0145] As an example, the first message is transmitted via SCCH (Sidelink Control Channel).

[0146] As an example, the first message is transmitted via SRB1 (Signalling Radio Bearer 1).

[0147] As an example, the first message is transmitted via SRB3 (Signalling Radio Bearer 3).

[0148] As an example, the first message includes an RRCReconfiguration message.

[0149] As an example, the first message includes an RRCResume message.

[0150] As an example, the first message includes an RRCReestablishment message.

[0151] As one embodiment, the configuration information of the second cell includes the physical layer configuration information of the second cell.

[0152] As one embodiment, the configuration information of the second cell includes the first node's C(Cell)-RNTI (Radio Network Temporary Identifier) ​​in the second cell.

[0153] As one example, the configuration information of the second cell includes the common configuration information of the second cell.

[0154] As an example, the configuration information of the second cell includes at least some fields in ServingCellConfigCommonIE.

[0155] As one example, the configuration information of the second cell includes the PCI of the second cell.

[0156] As an example, the configuration information of the second cell includes the downlink common configuration (DownlinkConfigCommon) of the second cell.

[0157] As an example, the configuration information of the second cell includes the uplink common configuration (UplinkConfigCommon) of the second cell.

[0158] As one example, the configuration information of the second cell includes the period of the SSB of the second cell.

[0159] As an example, the configuration information of the second cell includes the PBCH (Physical broadcast channel) configuration of the second cell.

[0160] As an example, the SSB is SS (Synchronization Signals) / PBCH.

[0161] As an example, the SSB is a Synchronization Signals Block.

[0162] As an example, the second cell is a candidate cell.

[0163] As an example, the second cell is a candidate cell of the first cell.

[0164] As an example, the second cell is not a candidate cell of the first cell.

[0165] As an example, the candidate cell refers to a CHO (Conditional Handover) candidate cell.

[0166] As an example, the candidate cell refers to either an LTM candidate cell or a CHO candidate cell.

[0167] As an example, the candidate cell refers to a candidate cell for LTM switching.

[0168] As an example, the candidate cell refers to an LTM candidate cell.

[0169] As an example, the candidate cell refers to a candidate SpCell.

[0170] As an example, the second cell is a target cell.

[0171] As an example, the target cell refers to the target SpCell.

[0172] As an example, the target cell refers to the target cell for handover.

[0173] As an example, the target cell refers to the target cell of the LTM switch.

[0174] As an example, the LTM switch refers to LTM switching.

[0175] As an example, the LTM switch refers to: LTM conversion.

[0176] As an example, the first cell is the source serving cell of the first node.

[0177] As an example, the first cell is the source cell of the first node.

[0178] As an example, the first cell is the source PCell of the first node.

[0179] As an example, the first cell is the source PSCell of the first node.

[0180] As an example, a ServingCellConfig IE in the first message includes the configuration information of the second message.

[0181] As an example, a ServingCellConfigCommon IE in the first message includes the configuration information of the second message.

[0182] As an example, a CellGroupConfig IE in the first message includes the configuration information of the second message.

[0183] As an example, one of the SpCellConfig IEs in the first message includes the configuration information of the second message.

[0184] As one example, the second signal is an echo signal.

[0185] As an example, the second signal being an echo signal means that the second signal is the signal after the first signal has been reflected, scattered, or refracted by the first node.

[0186] As an example, the second signal being an echo signal means that the sentence "first transmitter, sending a second signal" means that the second signal is the echo signal generated by the first signal passing through the first node; wherein the first transmitter has no gain for the second signal.

[0187] As one example, the second signal is a feedback signal.

[0188] As one embodiment, the second signal is partly an echo signal and partly a feedback signal.

[0189] As one embodiment, the second signal is a reference signal.

[0190] As an example, the second signal is SRS.

[0191] As an example, the second signal is a preamble.

[0192] As an example, the second signal is transmitted on the PUSCH.

[0193] As one embodiment, the second signal is transmitted over a dedicated physical channel for sensing.

[0194] As one example, the second signal is a radar signal.

[0195] As one embodiment, the second signal is the echo signal of the first signal.

[0196] In one embodiment, the second signal is passively sent by the first node.

[0197] In one embodiment, the second signal is actively sent by the first node.

[0198] As one example, the second signal is reflected by the first node.

[0199] As one embodiment, the second signal is a modulated signal.

[0200] As one example, the second signal is an unmodulated signal.

[0201] As an example, the physical layer parameters for the second signal transmission are predefined.

[0202] As one embodiment, the physical layer parameters for the second signal transmission are pre-configured.

[0203] As an example, the physical layer parameters of the second signal transmission are related to the first signal.

[0204] As one example, the time-frequency resources occupied by the second signal depend on the first signal.

[0205] As one example, the time-frequency resources occupied by the second signal depend on the reception of the first signal.

[0206] As one example, the time-frequency resources occupied by the second signal depend on the environment in which the first node is located.

[0207] As an example, the time-frequency resources occupied by the second signal are indicated by the first signal.

[0208] As one embodiment, the time-frequency resources occupied by the second signal are indicated by the first message.

[0209] As an example, the time-domain resources occupied by the second signal are pre-configured.

[0210] As an example, the time domain resources occupied by the first signal are downlink time slots.

[0211] As an example, the time domain resources occupied by the first signal are downlink time slots or flexible time slots.

[0212] As an example, the time-domain resources occupied by the first signal include uplink time slots.

[0213] The above method increases the probability of the first signal being received.

[0214] As an example, the time domain resource occupied by the second signal is the uplink time slot.

[0215] As one embodiment, the time domain resources occupied by the second signal are uplink time slots or flexible time slots.

[0216] As one embodiment, the time-domain resources occupied by the second signal include downlink time slots.

[0217] The above method shortens the delay of the second signal.

[0218] As an example, the time-domain resources occupied by the second signal depend on the first signal.

[0219] As a sub-implementation of the above embodiment, the second signal is transmitted at a time after the first signal is received.

[0220] As a sub-implementation of the above embodiment, the second signal is transmitted at a time interval after the first signal is received.

[0221] As a sub-implementation of the above sub-implementation, the first time interval is predefined.

[0222] As a sub-implementation of the above sub-implementation, the first time interval is pre-configured.

[0223] As a sub-implementation of the above sub-implementation, the first time interval may be 0.

[0224] As a sub-example of the above sub-example, the first time interval is configured by the first signal.

[0225] As a sub-implementation of the above sub-implementation, the first time interval is determined by the first node; wherein, the first node reports the first time interval in the second signal.

[0226] As an example, the frequency domain resource location occupied by the second signal is pre-configured.

[0227] As one example, the frequency domain resources occupied by the second signal depend on the first signal.

[0228] As a sub-implementation of the above embodiments, the frequency domain resources occupied by the second signal are the same as those occupied by the first signal.

[0229] As a sub-implementation of the above embodiment, the frequency position of the second signal transmission is a subset of frequencies within the frequency of the first signal.

[0230] As a sub-implementation of the above embodiment, the frequency position of the second signal transmission is at the frequency of the first signal frequency reference point plus a first frequency offset.

[0231] As a sub-example of the above sub-example, the first signal frequency reference point refers to the center frequency of the first signal.

[0232] As a sub-example of the above sub-example, the first signal frequency reference point refers to the lower starting point of the frequency of the first signal.

[0233] As a sub-example of the above sub-example, the first signal frequency reference point refers to the starting point of the frequency of the first signal.

[0234] As a sub-implementation of the above sub-implementation, the first frequency bias is predefined.

[0235] As a sub-implementation of the above sub-implementation, the first frequency bias is pre-configured.

[0236] As a sub-implementation of the above sub-implementation, the first frequency bias can be 0.

[0237] As a sub-example of the above sub-example, the first frequency bias is configured by the first signal.

[0238] As an example, the transmission power of the second signal is predefined.

[0239] As an example, the transmission power of the second signal is pre-configured.

[0240] As one example, the transmission power of the second signal depends on the first signal.

[0241] As one embodiment, the transmission power of the second signal is configured as that of the first signal.

[0242] As one embodiment, the transmission power of the second signal is determined by the first node; wherein the first node reports the transmission power of the second signal in the second signal.

[0243] As one embodiment, the transmission power of the second signal is the first power plus a first power bias.

[0244] As a sub-example of the above sub-example, the first power is predefined.

[0245] As a sub-example of the above sub-example, the first power is pre-configured.

[0246] As a sub-example of the above sub-example, the first power is configured by the first signal.

[0247] As a sub-example of the above sub-example, the first power is the transmission power of the first signal.

[0248] As a sub-example of the above sub-example, the first power is the received power of the first node receiving the first signal.

[0249] As a sub-implementation of the above sub-implementation, the first power is determined by the first node; wherein, the first node reports the first power in the second signal.

[0250] As a sub-implementation of the above sub-implementation, the first power bias is predefined.

[0251] As a sub-example of the above sub-example, the first power bias is pre-configured.

[0252] As a sub-example of the above sub-example, the first power bias is configured by the first signal.

[0253] As a sub-implementation of the above sub-implementation, the first power bias is determined by the first node; wherein, the first node reports the first power bias in the second signal.

[0254] As an example, the spatial filtering parameters for the second signal transmission are predefined.

[0255] As one embodiment, the spatial filtering parameters for the second signal transmission are pre-configured.

[0256] As one embodiment, the spatial filtering parameters of the second signal transmission depend on the first signal.

[0257] As one embodiment, the spatial filtering parameters for the second signal transmission are configured for the first signal.

[0258] As an example, the spatial filtering parameters of the second signal are the same as those of the first signal.

[0259] As one embodiment, the first signal carries a first set of information.

[0260] As a sub-implementation of the above embodiments, the first information set includes the transmission power of the first signal.

[0261] As a sub-implementation of the above embodiments, the first information set includes the physical layer parameters of the second signal transmission.

[0262] As a sub-implementation of the above embodiments, the first information set includes configuration information for the transmission power of the second signal.

[0263] As a sub-implementation of the above embodiments, the first information set includes configuration information for the first power bias of the second signal.

[0264] As a sub-implementation of the above embodiments, the first information set includes configuration information for the transmission time of the second signal.

[0265] As a sub-implementation of the above embodiments, the first information set includes configuration information for the first time interval of the second signal.

[0266] As a sub-implementation of the above embodiments, the first information set includes configuration information for the transmission frequency of the second signal.

[0267] As a sub-implementation of the above embodiments, the first information set includes configuration information for the first frequency offset of the second signal.

[0268] As an example, the second signal does not carry information.

[0269] As an example, the first signal carries information.

[0270] As one embodiment, the second signal carries a second set of information.

[0271] As a sub-implementation of the above embodiments, the second information set includes the physical layer parameters of the second signal transmission.

[0272] As a sub-implementation of the above embodiments, the second information set includes the received RSRP of the first signal.

[0273] As a sub-implementation of the above embodiments, the second information set includes the received RSRQ of the first signal.

[0274] As a sub-implementation of the above embodiments, the second information set includes the first time interval of the second signal.

[0275] As a sub-implementation of the above embodiments, the second information set includes the transmission power of the second signal.

[0276] As a sub-implementation of the above embodiments, the second information set includes the second signal transmission spatial filtering parameters.

[0277] As an example, the action of the first signal triggering the second signal means that the second signal is a signal that is reflected, refracted, or scattered by the first node.

[0278] As an example, the action of the first signal triggering the second signal means that the first node sends the first signal when it receives the first signal.

[0279] As an example, the action of the first signal triggering the second signal means that the first node sends the first signal after receiving the first signal.

[0280] As an example, the action of the first signal triggering the second signal means that the first node sends the first signal after receiving the first signal for a period of time.

[0281] As an example, the action of the first signal triggering the second signal means that after the first node receives the first signal, it sends the second signal according to the configuration.

[0282] As an example, the action of the first signal triggering the second signal means that after the first node receives the first signal, it sends the second signal according to the configuration in the first signal.

[0283] As an example, the action of the first signal triggering the second signal means that after the first node receives the first signal, it sends the second signal according to the previous configuration and the configuration in the first signal.

[0284] As an example, the action of the second signal triggering the first message means that after the second node receives the second signal, it sends the first message.

[0285] As an example, the action of the second signal triggering the first message means that after the second node analyzes the second node, the analysis result triggers the sending of the first message.

[0286] As one embodiment, the action of receiving the second signal includes receiving the second signal.

[0287] As one embodiment, the action of receiving the second signal includes measuring the second signal.

[0288] As one embodiment, the action of receiving the second signal includes decoding the information encoded in the second signal.

[0289] As an example, the sender of the first signal being the second node means that the second node sends the second signal.

[0290] As one embodiment, the sender of the first signal is the second node that configures the transmission of the first signal.

[0291] As an example, the sender of the first signal being the second node means that the second node configures one or more sending nodes to send the second signal.

[0292] As an example, the receiver of the second signal is the second node, which means that the second node receives the second signal.

[0293] As one embodiment, the receiver of the second signal is the second node, which means that the second node is configured to receive the second signal.

[0294] As one embodiment, the receiver of the second signal is the second node, which means that the second node configures one or more receiving nodes to receive the second signal.

[0295] As an example, the receiver of the second signal is the second node, which means that the second node receives the analysis results of the second signal.

[0296] As an example, the sentence "the second node is the sustaining base station of the second cell" means that the second node is the gNB node of the second cell.

[0297] As an example, the sentence "the second node is the sustaining base station of the second cell" means that the second node is the CU node of the second cell.

[0298] As an example, the sentence "the second node is the sustaining base station of the second cell" means that the second node is the DU node of the second cell.

[0299] As an example, the sentence "the second node is the sustaining base station of the second cell" means that the second node is the TRP node of the second cell.

[0300] As an example, the sentence "the second node is the sustaining base station of the second cell" means that the second node is a node with ISAC capability in the second cell.

[0301] As an example, the first identity of the first node is an RNTI.

[0302] As an example, the first identity of the first node is a C-RNTI.

[0303] As an example, the first identity of the first node is the first node's C-RNTI in the second cell.

[0304] As an example, the action of applying the configuration information of the second cell means: connecting to the second cell.

[0305] As an example, the action of applying the configuration information of the second cell means: switching to the second cell.

[0306] As an example, the action of applying the configuration information of the second cell means: switching to the second cell.

[0307] As an example, the action of applying the configuration information of the second cell means including: performing a handover from the first cell to the second cell.

[0308] As an example, the action of applying the configuration information of the second cell means: switching the SpCell of the first node to the second cell.

[0309] As an example, the action of applying the configuration information of the second cell means: switching the PCell of the first node to the second cell.

[0310] As an example, the application of the configuration information of the second cell to the behavior means that the uplink and downlink synchronization process is performed on the second cell.

[0311] As an example, the action of applying the configuration information of the second cell means that: a random access procedure is performed on the second cell.

[0312] As an example, the application of the configuration information of the second cell to the behavior means that spatial filtering of the RS resources associated with the second cell is applied to the radio link.

[0313] As an example, the application of the configuration information of the second cell to the behavior means that spatial filtering of the RS resources associated with the second cell is applied to the radio link, and spatial filtering of the RS resources associated with the first cell is released.

[0314] As an example, the application of the configuration information of the second cell to the behavior means that spatial filtering of the RS resources associated with the second cell is applied to the radio link, and spatial filtering of the RS resources associated with the first cell is not released.

[0315] As an example, the first message indicates the duration of the first timer for the first node to randomly access the second cell.

[0316] As an example, the application of the configuration information of the second cell to the behavior includes: starting the first timer, the first node performing a random access procedure on the second cell; and stopping the first timer if the first node randomly accesses the second cell before the first timer expires.

[0317] As an example, the first timer is t304.

[0318] Example 2

[0319] Example 2 illustrates a schematic diagram of a network architecture according to an embodiment of this application, as shown in the attached diagram. Figure 2 As shown. (Attached) Figure 2This describes 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 can also be referred to as 5GS (5G System) / EPS (Evolved Packet System) 200, or some other suitable term. 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 services 230. 5GS / EPS can interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown in the figure, 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 providing 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 to UE 201. Node 203 can be connected to other nodes 204 via an 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 (transmitter-receiver node), or some other suitable term. Node 203 provides UE 201 with an access point to the 5GC / EPC 210. Examples of UE201 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 IoT devices, machine-type communication devices, land vehicles, automobiles, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handheld device, user agent, mobile client, client, or any other suitable term.Node 203 connects to 5GC / EPC210 via the S1 / NG interface. 5GC / EPC210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMFs 214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway) / UPF 213. MME / AMF / SMF 211 is the control node handling signaling between UE201 and 5GC / EPC210. ​​Generally, MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through S-GW / UPF 212, which is itself connected to P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF213 connects to Internet service 230. Internet service 230 includes carrier-compliant Internet protocol services, specifically including the Internet, intranet, IMS (IP Multimedia Subsystem), and packet-switched streaming services.

[0320] As an example, the UE201 corresponds to the first node in this application.

[0321] As an example, the UE201 is a user equipment (UE).

[0322] As an example, the UE201 is a base station (BS).

[0323] As an example, the UE201 is a relay device.

[0324] As an example, the UE201 is a gateway device.

[0325] As an example, node 203 corresponds to the second node in this application.

[0326] As one example, node 203 is a base station device.

[0327] As an example, node 203 is a user equipment.

[0328] As one example, node 203 is a relay device.

[0329] As one example, node 203 is a gateway device.

[0330] As an example, node 204 corresponds to the third node in this application.

[0331] As an example, node 204 is a base station device.

[0332] As an example, node 204 is a user equipment.

[0333] As an example, node 204 is a relay device.

[0334] As one example, node 204 is a gateway device.

[0335] Typically, UE201 is a user equipment, node203 is a base station device, and node204 is a base station device.

[0336] Typically, UE201 is a user equipment, node203 is a user equipment, and node204 is a user equipment.

[0337] Typically, UE201 is a user equipment, node203 is a user equipment, and node204 is a base station equipment.

[0338] Typically, UE201 is a user equipment, node203 is a base station equipment, and node204 is a user equipment.

[0339] Typically, UE201 is a base station device, node 203 is a base station device, and node 204 is a base station device.

[0340] As an example, node 203 and node 204 are connected via an ideal backhaul connection.

[0341] As an example, node 203 and node 204 are connected via a non-ideal backhaul connection.

[0342] As an example, the user equipment supports ISAC.

[0343] As one example, the user equipment supports radar.

[0344] As one example, the user equipment supports transmission over a non-terrestrial network (NTN).

[0345] As an example, the user equipment supports terrestrial network transmission.

[0346] As an example, the user equipment supports dual connection (DC) transmission.

[0347] As one example, the user equipment includes an aircraft.

[0348] As one embodiment, the user equipment includes an in-vehicle terminal.

[0349] As one example, the user equipment includes a vessel.

[0350] As one example, the user equipment includes an Internet of Things (IoT) terminal.

[0351] As one example, the user equipment includes a terminal for the Industrial Internet of Things (IIoT).

[0352] As one embodiment, the user equipment includes devices that support low-latency, high-reliability transmission.

[0353] As one embodiment, the user equipment includes testing equipment.

[0354] As one embodiment, the user equipment includes a signaling tester.

[0355] As one embodiment, the user equipment includes IAB (Integrated Access and Backhaul)-MT (Mobile Termination).

[0356] As an example, the base station equipment supports ISAC.

[0357] As one example, the base station equipment supports radar.

[0358] As an example, the base station equipment supports transmission over non-terrestrial networks.

[0359] As one example, the base station equipment supports transmission over a terrestrial network.

[0360] As one embodiment, the base station equipment includes a Base Transceiver Station (BTS).

[0361] As one embodiment, the base station equipment includes a NodeB (NB).

[0362] As one embodiment, the base station equipment includes a gNB.

[0363] As one example, the base station equipment includes an eNB.

[0364] As one example, the base station equipment includes an ng-eNB.

[0365] As one embodiment, the base station equipment includes an en-gNB.

[0366] As one embodiment, the base station equipment includes a CU (Centralized Unit).

[0367] As one embodiment, the base station equipment includes a DU (Distributed Unit).

[0368] As one embodiment, the base station equipment includes a TRP (Transmitter Receiver Point).

[0369] As one example, the base station equipment includes a macrocell base station.

[0370] As one embodiment, the base station equipment includes a microcell base station.

[0371] As one example, the base station equipment includes a pico cell base station.

[0372] As one example, the base station equipment includes a femtocell.

[0373] As one embodiment, the base station equipment includes flight platform equipment.

[0374] As one example, the base station equipment includes satellite equipment.

[0375] As one embodiment, the base station equipment includes testing equipment.

[0376] As one embodiment, the base station equipment includes a signaling tester.

[0377] As one embodiment, the base station equipment includes a gateway device.

[0378] As one embodiment, the base station equipment includes an IAB-node.

[0379] As one example, the base station equipment includes an IAB-donor.

[0380] As one embodiment, the base station equipment includes IAB-donor-CU.

[0381] As one embodiment, the base station equipment includes IAB-donor-DU.

[0382] As one embodiment, the base station equipment includes an IAB-DU.

[0383] As one example, the base station equipment includes IAB-MT.

[0384] As one embodiment, the relay device includes a relay.

[0385] As one embodiment, the relay device includes an L3 relay.

[0386] As one embodiment, the relay device includes an L2 relay.

[0387] As one example, the relay device includes a router.

[0388] As one example, the relay device includes a switch.

[0389] As one embodiment, the relay device includes a gateway device.

[0390] As one embodiment, the relay equipment includes user equipment.

[0391] As one embodiment, the relay device includes a base station device.

[0392] Example 3

[0393] Example 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture for a user plane and a control plane according to this application, as shown in the attached diagram. Figure 3 As shown. Figure 3 This is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300. Figure 3The radio protocol architecture for control plane 300 is illustrated using three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. L1 layer will be referred to as PHY301 in this document. Layer 2 (L2 layer) 305 sits above PHY301 and includes the MAC (Medium Access Control) sublayer 302, the RLC (Radio Link Control) sublayer 303, and the PDCP (Packet Data Convergence Protocol) sublayer 304. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. It also provides security through encrypted data packets and cross-area mobility support. The RLC sublayer 303 provides segmentation and reassembly of upper-layer packets, retransmission of lost packets, and packet reordering to compensate for out-of-order reception due to HARQ (Hybrid Automatic Repeat Request). MAC sublayer 302 provides multiplexing between the logical and transport channels. MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a cell. MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3) of the control plane 300 is responsible for acquiring radio resources (i.e., radio bearers) and using RRC signaling to configure the lower layers. The radio protocol architecture of the user plane 350 includes Layer 1 (L1) and Layer 2 (L2). The radio protocol architecture in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for Physical Layer 351, PDCP sublayer 354 in L2 Layer 355, RLC sublayer 353 in L2 Layer 355, and MAC sublayer 352 in L2 Layer 355. However, PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 also includes the SDAP (Service Data Adaptation Protocol) sublayer 356. The SDAP sublayer 356 is responsible for the mapping between QoS streams and data radio bearers (DRBs) to support service diversity.

[0394] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the first node in this application.

[0395] As an example, Appendix Figure 3The wireless protocol architecture described herein is applicable to the second node in this application.

[0396] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the third node described in this application.

[0397] As an example, the first signal in this application is generated by MAC302 or MAC352.

[0398] As an example, the first signal in this application is generated by the PHY301 or PHY351.

[0399] As an example, the second signal in this application is generated by MAC302 or MAC352.

[0400] As an example, the second signal in this application is generated by the PHY301 or PHY351.

[0401] As an example, the first message in this application is generated in the RRC306.

[0402] As an example, the first message in this application is generated by MAC302 or MAC352.

[0403] As an example, the second message in this application is generated in the RRC306.

[0404] As an example, the second message in this application is generated by MAC302 or MAC352.

[0405] As an example, the third message in this application is generated in the RRC306.

[0406] As an example, the third message in this application is generated by MAC302 or MAC352.

[0407] As an example, the fourth message in this application is generated in the RRC306.

[0408] As an example, the fourth message in this application is generated by MAC302 or MAC352.

[0409] As an example, the first signaling in this application is generated in the RRC306.

[0410] As an example, the first signaling in this application is generated in MAC302 or MAC352.

[0411] Example 4

[0412] Example 4 shows schematic diagrams of a first communication device and a second communication device according to this application, as shown in the appendix. Figure 4 As shown. Figure 4 This is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in the access network.

[0413] The first communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmitting processor 468, a receiving processor 456, a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, a transmitter / receiver 454, and an antenna 452.

[0414] The second communication device 410 includes a controller / processor 475, a memory 476, a receiver processor 470, a transmitter processor 416, a multi-antenna receiver processor 472, a multi-antenna transmitter processor 471, a transmitter / receiver 418, and an antenna 420.

[0415] 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 L2 layer functionality. 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 to the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmitting 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). Transmit processor 416 performs encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, and mapping of signal clusters based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), M-Phase Shift Keying (M-PSK), M-QAM). Multi-antenna transmit processor 471 performs digital spatial precoding on the encoded and modulated symbols, including codebook-based and non-codebook-based precoding, and beamforming processing, generating one or more spatial streams. Transmit processor 416 then maps each spatial stream to subcarriers, multiplexes it with a reference signal (e.g., a pilot) in the time and / or frequency domains, and subsequently uses inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain multicarrier symbol stream. Multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multi-antenna transmitter processor 471 into an radio frequency stream, which is then provided to different antennas 420.

[0416] 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 a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream, which is then provided to the receiver processor 456. The receiver processor 456 and the multi-antenna receiver processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiver processor 458 performs receive analog precoding / beamforming operations on the baseband multicarrier symbol stream from the receiver 454. The receiver processor 456 uses a Fast Fourier Transform (FFT) to convert the baseband multicarrier symbol stream after the receive analog precoding / beamforming operations from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiver processor 456, where the reference signal is used for channel estimation, and the data signal is recovered in the multi-antenna receiver processor 458 after multi-antenna detection to recover any spatial stream destined for the first communication device 450. Symbols on each spatial stream are demodulated and recovered in the receive processor 456, generating soft decisions. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper-layer data and control signals transmitted by the second communication device 410 over the physical channel. The upper-layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of Layer 2. The controller / processor 459 may be associated with a memory 460 storing program code and data. The memory 460 may be referred to as computer-readable media. In the transmission from the second communication device 410 to the second communication device 450, the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transport and logical channels to recover upper-layer data packets from the core network. The upper-layer data packets are then provided to all protocol layers above Layer 2. Various control signals may also be provided to Layer 3 for Layer 3 processing.

[0417] 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 the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission functions at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, implementing L2 layer functions for the user plane and control plane. The controller / processor 459 is also responsible for retransmitting lost packets and signaling to the second communication device 410. Transmit processor 468 performs modulation mapping and channel coding processing, while multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming processing. Subsequently, transmit processor 468 modulates the generated spatial stream into a multi-carrier / single-carrier symbol stream. After analog precoding / beamforming operations in multi-antenna transmit processor 457, the stream is provided to different antennas 452 via transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by multi-antenna transmit processor 457 into a radio frequency symbol stream before providing it to antenna 452.

[0418] In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the receiving function at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals into baseband signals, and provides the baseband signals to the multi-antenna receiving processor 472 and the receiving processor 470. The receiving processor 470 and the multi-antenna receiving processor 472 jointly implement the L1 layer functions. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 may be associated with a memory 476 that stores program code and data. The memory 476 may be referred to as computer-readable media. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides multiplexing between the transmission and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper-layer data packets from the UE 450. Upper-layer packets from the controller / processor 475 can be provided to the core network.

[0419] As one embodiment, 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 with the at least one processor, and the first communication device 450 at least: receives a first signal; receives a first message, the first message including configuration information of a second cell; after the first message is received, applies the configuration information of the second cell; sends a second signal; wherein the first signal triggers the second signal; the second signal triggers the first message; the sender of the first signal and the receiver of the second signal are both second nodes; the second node is a sustaining base station of the second cell; the configuration information of the second cell includes a first identity of the first node.

[0420] As one embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program that generates actions when executed by at least one processor, the actions including: receiving a first signal; receiving a first message, the first message including configuration information of a second cell; applying the configuration information of the second cell after the first message is received; and sending a second signal; wherein the first signal triggers the second signal; the second signal triggers the first message; the sender of the first signal and the receiver of the second signal are both second nodes; the second node is a sustaining base station of the second cell; and the configuration information of the second cell includes a first identity of the first node.

[0421] As one embodiment, the second communication device 410 corresponds to the second node in this application; 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 at least: transmits a first signal; receives a second signal; wherein, the receiver of the first signal receives a first message in a first cell, the first message including configuration information of a second cell; after the first message is received, the receiver of the first signal applies the configuration information of the second cell; the first signal triggers the second signal; the second signal triggers the first message; the second node is a sustaining base station of the second cell.

[0422] As an embodiment, the second communication device 410 corresponds to the second node in this application; 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 signal; receiving a second signal; wherein, the receiver of the first signal receives a first message in a first cell, the first message including configuration information of a second cell; after the first message is received, the receiver of the first signal applies the configuration information of the second cell; the first signal triggers the second signal; the second signal triggers the first message; the second node is a sustaining base station of the second cell.

[0423] As one embodiment, the second communication device 410 corresponds to the third node in this application; 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 third communication device 410 at least: transmits a first message in a first cell, the first message including configuration information of a second cell; wherein, after the first message is received, the receiver of the first message applies the configuration information of the second cell; a first signal triggers a second signal; the second signal triggers the first message; the sender of the first signal and the receiver of the second signal are both second nodes; the second node is a sustaining base station of the second cell.

[0424] As an embodiment, the second communication device 410 corresponds to the third node in this application; 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 message in a first cell, the first message including configuration information of a second cell; wherein, after the first message is received, the receiver of the first message applies the configuration information of the second cell; a first signal triggers a second signal; the second signal triggers the first message; the sender of the first signal and the receiver of the second signal are both second nodes; the second node is a sustaining base station of the second cell.

[0425] As one embodiment, at least one of the antenna 452, the receiver 454, the receiving processor 456, and the controller / processor 459 is used to receive the first message.

[0426] As an example, at least one of the antenna 420, the transmitter 418, the transmission processor 416, and the controller / processor 475 is used to transmit the first message.

[0427] As one embodiment, at least one of the antenna 452, the receiver 454, the receiving processor 456, and the controller / processor 459 is used to receive the first signal.

[0428] As one embodiment, at least one of the antenna 420, the transmitter 418, the transmission processor 416, and the controller / processor 475 is used to transmit the first signal.

[0429] As one embodiment, at least one of the antenna 452, the receiver 454, the receiving processor 456, and the controller / processor 459 is used to receive the first signaling.

[0430] As one embodiment, at least one of the antenna 420, the transmitter 418, the transmission processor 416, and the controller / processor 475 is used to transmit the first signaling.

[0431] As one embodiment, at least one of the antenna 452, the receiver 454, the receiving processor 456, and the controller / processor 459 is used to receive the fourth message.

[0432] As an example, at least one of the antenna 420, the transmitter 418, the transmission processor 416, and the controller / processor 475 is used to transmit a fourth message.

[0433] As one embodiment, at least one of the antenna 452, the transmitter 454, the transmission processor 468, and the controller / processor 459 is used to transmit a second signal.

[0434] As one embodiment, at least one of the antenna 420, the receiver 418, the receiving processor 470, and the controller / processor 475 is used to receive the second signal.

[0435] As an example, the first communication device 450 corresponds to the first node in this application.

[0436] As an example, the first communication device 450 is a user equipment.

[0437] As an example, the first communication device 450 is a base station device.

[0438] As an example, the first communication device 450 is a relay device.

[0439] As one embodiment, the second communication device 410 is a user equipment.

[0440] As one embodiment, the second communication device 410 is a base station device.

[0441] As one embodiment, the second communication device 410 is a relay device.

[0442] Example 5

[0443] Example 5 illustrates a wireless signal transmission flowchart according to an embodiment of this application, as shown in the attached diagram. Figure 5 As shown. It should be noted that the order in this example does not limit the order of signal transmission and implementation in this application.

[0444] for First node U01 In step S5101, a fourth message is received; in step S5102, a first signal is received; in step S5103, a second signal is sent; in step S5104, a first message is received, the first message including configuration information of the second cell; in step S5105, after the first message is received, the configuration information of the second cell is applied.

[0445] for Second node N02 In step S5201, a third message is received; in step S5202, a first signal is sent; in step S5203, a second signal is received; in step S5204, a second message is sent, the second message including the configuration information of the second message;

[0446] for Third node N03 In step S5301, the fourth message is sent; in step S5302, the third message is sent; in step S5303, the second message is received; and in step S5304, the first message is sent in the first cell.

[0447] In embodiment 5, the first signal triggers the second signal; the second signal triggers the first message; the sender of the first signal and the receiver of the second signal are both the second node N02; the second node is the sustaining base station of the second cell; the configuration information of the second cell includes the first identity of the first node U01.

[0448] As an example, the dashed box F5.1 is optional.

[0449] As an example, the dashed box F5.1 is present.

[0450] As an example, the dashed box F5.1 does not exist.

[0451] As an example, the dashed box F5.2 is optional.

[0452] As an example, the dashed box F5.2 is present.

[0453] As an example, the dashed box F5.2 does not exist.

[0454] As an example, the dashed box F5.3 is optional.

[0455] As an example, the dashed box F5.3 is present.

[0456] As an example, the dashed box F5.3 does not exist.

[0457] As one embodiment, the fourth message includes the second identity of the first node, and the second signal carries the second identity of the first node.

[0458] As an example, the fourth message includes at least one RRC message.

[0459] As an example, the fourth message is an RRC message.

[0460] As an example, the fourth message is an RRC IE (Information Element).

[0461] As an example, the fourth message is a MAC CE.

[0462] As an example, the fourth message is UE-specific (UE-Specifc).

[0463] As an example, the fourth message is transmitted via DCCH (Dedicated Control Channel).

[0464] As an example, the fourth message is transmitted via SCCH (Sidelink Control Channel).

[0465] As an example, the fourth message is transmitted via SRB1 (Signalling Radio Bearer 1).

[0466] As an example, the fourth message is transmitted via SRB3 (Signalling Radio Bearer 3).

[0467] As an example, the fourth message includes an RRCReconfiguration message.

[0468] As an example, the fourth message includes an RRCResume message.

[0469] As an example, the fourth message includes an RRCReestablishment message.

[0470] As an example, the fourth message configures the second identity of the first node.

[0471] As an example, the second identity of the first node is a logical identifier.

[0472] As an example, the first signal is identified by the second identity of the first node.

[0473] As one embodiment, the second signal is identified by the second identity of the first node.

[0474] As an example, a portion of the first signal is identified by the second identity of the first node.

[0475] As one embodiment, a portion of the second signal is identified by the second identity of the first node.

[0476] As an example, a portion of the first signal indicates the second identity of the first node.

[0477] As one embodiment, a portion of the second signal indicates the second identity of the first node.

[0478] As an example, the CRC of the first signal is scrambled by the second identity of the first node.

[0479] As an example, the CRC of the second signal is scrambled by the second identity of the first node.

[0480] As an example, a portion of the CRC of the first signal is scrambled by the second identity of the first node.

[0481] As an example, the CRC of the second signal is scrambled by the second identity of the first node.

[0482] As one embodiment, the first signal includes a preamble signal; wherein the format of the preamble signal is associated with the second identity.

[0483] As one embodiment, the second signal includes a preamble signal; wherein the format of the preamble signal is associated with the second identity.

[0484] As one embodiment, the first signal includes the second identity of the first node.

[0485] As one embodiment, the second signal includes the second identity of the first node.

[0486] As one embodiment, the encoded information of the second signal includes the second identity of the first node.

[0487] As one embodiment, the first signal includes the second identity of the first node.

[0488] As an example, the first signal does not include the second identity of the first node.

[0489] As an example, the fourth message configures the first node's reception parameters for the first signal.

[0490] As an example, the fourth message does not configure the first node's reception parameters for the first signal.

[0491] As an example, the fourth message configures the first node's reception time for the first signal.

[0492] As one example, the receiving time is a set of one or more time windows.

[0493] As one example, the time window set includes one or more time windows.

[0494] As an example, the receiving time is periodic.

[0495] As an example, the reception time is semi-static.

[0496] As an example, the receiving time is a timer.

[0497] As one example, the reception time depends on GNSS.

[0498] As an example, the fourth message configures the first node's reception frequency for the first signal.

[0499] As one example, the receiving frequency is one or more frequency sets.

[0500] As one example, the frequency set includes one or more frequency ranges.

[0501] As an example, the fourth message configures the first node's direction of receiving the first signal.

[0502] As one embodiment, the receiving direction is one or more receiving spatial filtering parameters.

[0503] As an example, the fourth message includes the transmission parameters of the first signal.

[0504] As an example, the fourth message does not include the transmission parameters of the first signal.

[0505] As an example, the transmission parameters include the transmission power of the first signal.

[0506] As one embodiment, the transmission parameters include the spatial filtering parameters for the first signal transmission.

[0507] As an example, the second signal triggering the first message means that: the second signal triggers the second message, and the second message triggers the first message; the recipient of the second message is the sustaining base station of the first cell; and the sender of the second message is the sustaining base station of the second cell.

[0508] As one example, the second message is transmitted via a ground interface.

[0509] As an example, the second message is an XnAP message.

[0510] As an example, the second message is an NGAP message.

[0511] As a sub-implementation of the above embodiments, the phrase "the second message is an NGAP message" means that the second node sends a second message to the core network element through the NG interface, which is then processed by the core network element and forwarded to the third node.

[0512] As a supplementary embodiment of the above sub-example, the core network element is AMF.

[0513] As a supplementary embodiment of the above sub-example, the core network element is LMF.

[0514] As an additional embodiment of the above sub-example, the core network element is an LMU (Location Measurement Unit).

[0515] As a supplementary embodiment of the above sub-example, the core network element is SMLC (Serving Mobile Location Center).

[0516] As a supplementary embodiment of the above sub-example, the core network element is GMLC (Gateway Mobile Location Center).

[0517] As a supplementary embodiment of the above sub-example, the core network element is a network element dedicated to ISAC.

[0518] As a supplementary embodiment of the above sub-example, the core network element is a sensing-dedicated network element.

[0519] As an example, the second message is a HandoverCommand message.

[0520] As an example, the second message includes an RRCReconfiguration message, which includes the configuration information of the second cell.

[0521] As an example, the second message is an RRC container.

[0522] As an example, the second message is a HandoverRequest message.

[0523] As one example, the second message includes the cell ID of the second cell.

[0524] As one example, the second message includes the KgNB* of the second cell.

[0525] As one example, the second message indicates the first node.

[0526] As one example, the second message includes the identity of the first node.

[0527] As one example, the second message includes the second identity of the first node.

[0528] As an example, the action of the second signaling triggering the second message means that the second node analyzes the second signal and decides to send the second message based on the analysis results.

[0529] As a sub-example of the above embodiment, the action of analyzing the second signal refers to performing an ISAC signal processing procedure on the second signal.

[0530] As a sub-example of the above embodiment, the action of analyzing the second signal means: decoding and analyzing the information in the second signal.

[0531] As a sub-example of the above embodiment, the action of analyzing the second signal means: measuring the second signal.

[0532] As an example, the action of the second message triggering the first message means that, in response to the third node receiving the second message, the third node sends the first message.

[0533] As an example, the action of the second message triggering the first message means that, based on the content of the second message and the relevant information of the third node, the third node decides whether to send the first message.

[0534] As a supplementary embodiment of the above embodiments, the relevant information refers to the information of the third node about the first node.

[0535] As a supplementary embodiment of the above embodiments, the relevant information refers to the measurement report of the third node regarding the first node.

[0536] As a supplementary embodiment of the above embodiments, the relevant information refers to the positioning information of the third node about the first node.

[0537] As a supplementary embodiment of the above embodiments, the relevant information refers to the perception information of the third node about the first node.

[0538] As a supplementary embodiment of the above embodiments, the relevant information refers to the position information of the third node relative to the first node.

[0539] As a supplementary embodiment of the above embodiments, the relevant information refers to the speed information of the third node regarding the first node.

[0540] As a supplementary embodiment of the above embodiments, the relevant information refers to the mobility information of the third node regarding the first node.

[0541] As an example, the action of the second message triggering the first message means that after receiving the second information, whether the third node sends the first message depends on the gNB implementation.

[0542] As an example, the transmission of the first signal does not depend on the third message.

[0543] As an example, the transmission of the first signal does not depend on the message received from the second node.

[0544] As an example, the first signal is sent periodically.

[0545] In one embodiment, the first signal is actively sent by the second node.

[0546] As an example, the third message triggers the first signal; the recipient of the third message is the sustaining base station of the second cell; and the sender of the third message is the sustaining base station of the first cell.

[0547] As an example, the third message is transmitted via a ground interface.

[0548] As an example, the third message is an XnAP message.

[0549] As an example, the third message is an NGAP message.

[0550] As an example, the third message is an RRC message.

[0551] As one example, the third message includes the second identity of the first node.

[0552] As one example, the third message includes the second identity of the first node.

[0553] As one example, the third message includes the mobility information of the first node.

[0554] As one example, the third message includes the location information of the first node.

[0555] As an example, the third message includes the measurement report of the first node.

[0556] As one example, the third message includes the perception information of the first node.

[0557] As one example, the third message includes the location information of the first node.

[0558] As one example, the third message includes the speed information of the first node.

[0559] As an example, the third message includes the RCS (Radar Cross Section) information of the first node.

[0560] As one embodiment, the third message includes configuration information for the first signal.

[0561] As an example, the action of the third message triggering the first signal means that, in response to the second node receiving the third message, the second node transmits the first signal.

[0562] As an example, the action of the third message triggering the first signal means that after the second node receives the third message, the second node transmits the first signal.

[0563] As an example, the action of the third message triggering the first signal means that the second node decides whether to send the first signal based on the content of the third message.

[0564] As an example, the action of the third message triggering the first signal means that after the third node sends the third message to the second node without going through the core network, the second node sends the first signal.

[0565] As an example, the action of the third message triggering the first signal means that: the third node sends a third message to the core network element, which is then processed by the core network element and forwarded to the second node, after which the second node sends the first signal.

[0566] As a sub-implementation of the above embodiments, the core network element is AMF.

[0567] As a sub-implementation of the above embodiments, the core network element is LMF.

[0568] As a sub-implementation of the above embodiments, the core network element is an LMU (Location Measurement Unit).

[0569] As a sub-implementation of the above embodiments, the core network element is SMLC (Serving Mobile Location Center).

[0570] As a sub-implementation of the above embodiments, the core network element is GMLC (Gateway Mobile Location Center).

[0571] As a sub-example of the above embodiments, the core network element is a network element dedicated to ISAC.

[0572] As a sub-implementation of the above embodiments, the core network element is a network element dedicated to sensing.

[0573] Example 6

[0574] Example 6 illustrates a schematic diagram of the configuration information of the second cell being applied when the first message is received according to an embodiment of this application, triggering the behavior. Figure 6 As shown.

[0575] In Example 6, the first message being received triggers the application of the configuration information of the second cell to perform the behavior.

[0576] As an example, in response to the receipt of the first message, the configuration information of the second cell is applied.

[0577] As an example, the first message includes a masterCellGroup IE, the masterCellGroup IE includes a CellGroupConfig IE, the CellGroupConfig IE includes an SpCellConfig field, and the SpCellConfig field includes a ReconfigurationWithSync field.

[0578] As an example, the first message indicates the relevant parameters required for the first node to randomly access the first cell.

[0579] As an example, the first message indicates the first identifier of the second cell.

[0580] As an example, the first message is associated with the first identifier of the second cell.

[0581] As an example, the second cell is a target cell.

[0582] As an example, the first identifier of the second cell is configured via an RRC message.

[0583] As an example, the first identifier of the second cell is indicated by an RRC message.

[0584] As an example, the first identifier of the second cell is a physical identifier.

[0585] As an example, the first identifier of the second cell includes a PCI.

[0586] As an example, the first identifier of the second cell is a PCI.

[0587] As an example, the first identifier of the second cell is a logical identifier.

[0588] As an example, the first identifier of the second cell is a serving cell identifier.

[0589] As an example, the first identifier of the second cell is a target cell identifier.

[0590] As an example, the first identifier of the second cell is the identifier associated with the configuration information of the second cell.

[0591] As an example, the first identifier of the second cell is an identifier in the configuration information of the second cell.

[0592] As an example, the first identifier of the second cell is an identifier of the configuration information configured for the second cell.

[0593] Example 7

[0594] Example 7 illustrates a schematic diagram of triggering the application of second cell configuration information via first signaling according to an embodiment of this application, as shown in the attached diagram. Figure 7 As shown.

[0595] In Embodiment 7, after the first message is received, the first transmitter receives a first signaling, which is a protocol layer signaling below the RRC sublayer, and the first signaling indicates the second cell; wherein, the first signaling triggers the behavior to apply the configuration information of the second cell.

[0596] As an example, the second cell is a candidate cell.

[0597] As an example, the candidate cell refers to a candidate cell for LTM switching.

[0598] As an example, the candidate cell refers to an LTM candidate cell.

[0599] As an example, the candidate cell refers to a candidate SpCell.

[0600] As an example, the second cell is a target cell.

[0601] As an example, the target cell refers to the target SpCell.

[0602] As an example, the target cell refers to the target cell for handover.

[0603] As an example, the target cell refers to the target cell of the LTM switch.

[0604] As an example, the LTM switch refers to LTM switching.

[0605] As an example, the LTM switch refers to: LTM conversion.

[0606] As an example, the first signaling indicates that the second cell is the target cell.

[0607] As an example, the first signaling is used to trigger a handover.

[0608] As an example, the first signaling is used for LTM switching.

[0609] As an example, the first signaling is an LTM switch command.

[0610] As an example, the first signaling includes signaling for a MAC sublayer.

[0611] As an example, the first signaling is a MAC sublayer signaling.

[0612] As one embodiment, the first signaling includes physical layer signaling.

[0613] As an example, the first signaling is a physical layer signaling.

[0614] As one embodiment, the first signaling includes a MAC sublayer signaling and a physical layer signaling.

[0615] As an example, the first signaling is a MAC sublayer signaling and a physical layer signaling.

[0616] As an example, the signaling of the MAC sublayer is a MAC subPDU that includes a MAC CE.

[0617] As an example, the signaling of the MAC sublayer is a MAC subheader.

[0618] As an example, the signaling of the MAC sublayer is a MAC CE.

[0619] As an example, the signaling of the physical layer is a DCI.

[0620] As an example, the signaling of the physical layer is transmitted on the PDCCH.

[0621] As an example, the signaling of the physical layer is a DCI payload.

[0622] As an example, the signaling of the physical layer is in DCI format.

[0623] As one example, the first signaling indicates the first index.

[0624] As an example, the first index is the LTM candidate cell identifier of the second cell.

[0625] As an example, the first index is an identifier of the configuration of the LTM candidate cells of the second cell.

[0626] As an example, the first index is an integer that is not less than 0 and not greater than 7.

[0627] As an example, the first index is an integer that is not less than 0 and not greater than 15.

[0628] As an example, the first index is configured via an RRC message.

[0629] As an example, the first index is the PCI of the second cell.

[0630] As an example, the first index is the logical identifier of the second cell.

[0631] As one example, the configuration information of the second cell is associated with the first index.

[0632] As an example, the first message includes the configuration information of the second cell and the first index.

[0633] As one embodiment, the first signaling includes a field that can be used to indicate timing advance.

[0634] As an example, the first signaling includes a field that can be used to indicate a candidate SpCell.

[0635] As an example, the first signaling triggers the application of the configuration information of the second cell.

[0636] As an example, at least the first signaling triggers the application of the configuration information of the second cell.

[0637] As an example, the receipt of the first signaling triggers the application of the configuration information of the second cell.

[0638] As an example, at least the first signaling being received triggers the application of the configuration information of the second cell.

[0639] As an example, the configuration information of the second cell is applied at least after the first signaling is received.

[0640] As an example, as soon as the first signaling is received, the configuration information of the second cell is applied.

[0641] As an example, when the first signaling is received, the configuration information of the second cell is applied.

[0642] As an example, when the first signaling is received, if the measurement result for the second cell meets the threshold, the configuration information of the second cell is applied.

[0643] As an example, when the first signaling is received, the MAC sublayer of the first node sends an indication to the RRC sublayer of the first node; in response to receiving the indication at the RRC sublayer of the first node, the configuration information of the second cell is applied.

[0644] As an example, the action of applying the configuration information of the second cell means: switching to the second cell.

[0645] As an example, the action of applying the configuration information of the second cell means including: performing a handover from the second cell to the second cell.

[0646] As an example, the action of applying the configuration information of the second cell means: switching the SpCell of the first node to the second cell.

[0647] Example 8

[0648] Example 8 illustrates a schematic diagram of the application of the configuration information of the second cell in response to the fulfillment of a first execution condition according to an embodiment of this application, as shown in the attached diagram. Figure 8 As shown.

[0649] In embodiment 8, after the first message is received, the first transmitter applies the configuration information of the second cell as a response to the fulfillment of the first execution condition; wherein the first message includes the first execution condition.

[0650] As an example, the second cell is a CHO candidate cell.

[0651] As an example, the second cell is an LTM candidate cell.

[0652] As an example, the second cell is a Conditional LTM candidate cell.

[0653] As an example, the first execution condition is the execution condition of the CHO candidate cell.

[0654] As an example, the first execution condition is the execution condition of the LTM candidate cell.

[0655] As an example, the first execution condition is the execution condition of the LTM candidate cell.

[0656] As an example, the first execution condition is a triggering event related to the L1 measurement threshold.

[0657] As an example, the first message includes a ConditionalReconfiguration, which includes the configuration information of the second cell.

[0658] As an example, the first message includes a CondReconfigToAddModList, which includes the configuration information of the second cell.

[0659] As an example, the first message includes a CondReconfigToAddMod, which includes the configuration information of the second cell.

[0660] As an example, the first message includes a ConditionalLTM, which includes the configuration information of the second cell.

[0661] As an example, the first message includes an LTMToAddModList, which includes the configuration information of the second cell.

[0662] As an example, the first message includes an LTMToAddMod, which includes the configuration information of the second cell.

[0663] As an example, the first message includes a field that can be used to indicate timing advance.

[0664] As an example, the first message includes a field that can be used to indicate a candidate SpCell.

[0665] As an example, the first execution condition triggers the application of the configuration information of the second cell.

[0666] As an example, at least the first execution condition is met to trigger the application of the configuration information of the second cell.

[0667] As an example, the configuration information of the second cell is applied at least after the first execution condition is met.

[0668] As an example, once the first execution condition is met, the configuration information of the second cell is applied.

[0669] As an example, when the first execution condition is met, the configuration information of the second cell is applied.

[0670] As an example, when the first execution condition is met, the MAC sublayer of the first node sends an indication to the RRC sublayer of the first node; in response to the RRC sublayer of the first node receiving the indication, the configuration information of the second cell is applied.

[0671] As an example, the action of applying the configuration information of the second cell means: switching to the second cell.

[0672] As an example, the action of applying the configuration information of the second cell means including: performing a handover from the second cell to the second cell.

[0673] As an example, the action of applying the configuration information of the second cell means: switching the SpCell of the first node to the second cell.

[0674] As one embodiment, the first execution condition includes: transmitting a third signal in the second cell, and receiving a fourth signal.

[0675] As a sub-example of the above embodiments, the third signal is a modulated signal.

[0676] As a sub-example of the above embodiments, the third signal is an unmodulated signal.

[0677] As a sub-example of the above embodiments, the third signal is a multi-carrier signal.

[0678] As a sub-example of the above embodiments, the third signal is a single-carrier signal.

[0679] As a sub-example of the above embodiment, the third signal is an OFDM (Orthogonal Frequency Division Multiplexing) signal.

[0680] As a sub-example of the above embodiments, the third signal is not an OFDM signal.

[0681] As a sub-example of the above embodiment, the third signal is an OTFS (Orthogonal Time-Frequency System) signal.

[0682] As a sub-example of the above embodiment, the third signal is a pulse signal.

[0683] As a sub-example of the above embodiment, the third signal is an FMCW (Frequency Modulated Continuous Wave) signal.

[0684] As a sub-implementation of the above embodiments, the third signal is a physical layer signal.

[0685] As a sub-implementation of the above embodiments, the third signal is a reference signal (RS).

[0686] As a sub-example of the above embodiment, the third signal is SRS.

[0687] As a sub-example of the above embodiment, the third signal is a preamble.

[0688] As a sub-example of the above embodiment, the third signal is the DMRS in the PUSCH.

[0689] As a sub-implementation of the above embodiments, the third signal is a dedicated reference signal for sensing.

[0690] As a sub-example of the above embodiment, the third signal is a signal in PUSCH.

[0691] As a sub-implementation of the above embodiments, the third signal is a signal in the PUSCH specifically used for sensing.

[0692] As a sub-example of the above embodiments, the third signal is transmitted on a dedicated physical channel for sensing.

[0693] As a sub-implementation of the above embodiments, the third signal carries user data.

[0694] As a sub-example of the above embodiments, the third signal does not carry user data.

[0695] As a sub-implementation of the above embodiments, the third signal carries information.

[0696] As a sub-example of the above embodiments, the third signal does not carry information.

[0697] As a sub-example of the above embodiments, the third signal is a signal in a dedicated physical channel for sensing.

[0698] As a sub-implementation of the above embodiments, the third signal is pre-configured.

[0699] As a sub-example of the above embodiments, the third signal is periodic.

[0700] As a sub-example of the above embodiments, the third signal is semi-continuous.

[0701] As a sub-implementation of the above embodiment, the third signal is one of multiple signals in a set of third signals.

[0702] As a sub-implementation of the above embodiments, the third signal set is periodic.

[0703] As a sub-implementation of the above embodiments, the third signal set is pre-configured.

[0704] As a sub-example of the above embodiment, the third signal is transmitted in a beam scanning manner.

[0705] As a sub-example of the above embodiment, the third signal is transmitted in a digital beamforming manner.

[0706] As a sub-example of the above embodiment, the third signal is transmitted in an omnidirectional manner.

[0707] As a sub-implementation of the above embodiments, the second node senses the first node through at least the third signal.

[0708] As a sub-implementation of the above embodiment, the second node detects the first node through at least the third signal.

[0709] As a sub-implementation of the above embodiments, the second node tracks the first node through at least the third signal.

[0710] As a sub-implementation of the above embodiments, the second node positions the first node by at least the third signal.

[0711] As a sub-example of the above embodiment, the fourth signal is an echo signal.

[0712] As a sub-example of the above embodiment, the fourth signal being an echo signal means that the fourth signal is the signal after the third signal is reflected, scattered, or refracted by the second node.

[0713] As a sub-implementation of the above embodiments, the fourth signal is a feedback signal.

[0714] As a sub-implementation of the above embodiments, the fourth signal is partly an echo signal and partly a feedback signal.

[0715] As a sub-implementation of the above embodiments, the fourth signal is a reference signal.

[0716] As a sub-example of the above embodiment, the fourth signal is PRS.

[0717] As a sub-example of the above embodiment, the fourth signal is DMRS on the PDSCH.

[0718] As a sub-example of the above embodiment, the fourth signal is transmitted on the PDSCH.

[0719] As a sub-example of the above embodiments, the fourth signal is transmitted on a dedicated physical channel for sensing.

[0720] As a sub-implementation of the above embodiments, the fourth signal is passively transmitted.

[0721] As a sub-implementation of the above embodiments, the fourth signal is actively sent.

[0722] As a sub-example of the above embodiment, the fourth signal is a modulated signal.

[0723] As a sub-example of the above embodiments, the fourth signal is an unmodulated signal.

[0724] As a sub-example of the above embodiments, the physical layer parameters of the fourth signal transmission are predefined.

[0725] As a sub-example of the above embodiments, the physical layer parameters for the fourth signal transmission are pre-configured.

[0726] As a sub-example of the above embodiment, the physical layer parameters of the fourth signal transmission are related to the third signal.

[0727] As a sub-implementation of the above embodiment, the time of transmission of the fourth signal is a certain time after the time of reception of the third signal.

[0728] As a sub-example of the above embodiment, the timing of the fourth signal transmission is pre-configured.

[0729] As a sub-example of the above embodiment, the frequency position of the fourth signal transmission is a subset of frequencies within the frequency of the third signal.

[0730] As a sub-example of the above embodiment, the frequency position of the fourth signal transmission is pre-configured.

[0731] As a sub-example of the above embodiment, the power of the fourth signal transmission is predefined.

[0732] As a sub-example of the above embodiment, the power of the fourth signal transmission is pre-configured.

[0733] As a sub-example of the above embodiment, the power of the fourth signal transmission is determined by the second node.

[0734] As a sub-example of the above embodiment, the spatial filtering parameters for the fourth signal transmission are predefined.

[0735] As a sub-example of the above embodiment, the spatial filtering parameters for the fourth signal transmission are pre-configured.

[0736] As a sub-implementation of the above embodiments, the first node senses the second node through at least the fourth signal.

[0737] As a sub-implementation of the above embodiment, the first node detects the second node through at least the fourth signal.

[0738] As a sub-example of the above embodiment, the first node tracks the second node through at least the fourth signal.

[0739] As a sub-example of the above embodiment, the first node positions the second node by at least the fourth signal.

[0740] As a sub-implementation of the above embodiment, the fourth signal is received within the target time interval.

[0741] As a sub-example of the above embodiments, the target time interval is the running time of a timer.

[0742] As a sub-example of the above embodiments, the target time interval is the running time of a time window.

[0743] As a sub-implementation of the above embodiments, the target time interval is pre-configured.

[0744] As a sub-implementation of the above embodiments, the target time interval is predefined.

[0745] As a sub-implementation of the above embodiment, the target time interval is started along with the transmission of the third signal.

[0746] As a sub-implementation of the above embodiment, the target time interval is started in response to the transmission of the third signal.

[0747] As a sub-implementation of the above embodiment, when preparing the third signal, the target time interval is started.

[0748] As a sub-implementation of the above embodiment, the target time interval begins when the third signal transmission ends.

[0749] As a sub-implementation of the above embodiment, the target time interval begins after at least one symbol has elapsed since the third signal was sent.

[0750] Example 9

[0751] Example 9 illustrates a structural block diagram of a processing apparatus for a first node according to an embodiment of this application; as shown in the appendix. Figure 9 As shown. In the appendix Figure 9 In the first node, the processing device 900 includes a first transmitter 901 and a first receiver 902.

[0752] A first receiver 902 receives a first signal; receives a first message, the first message including configuration information of a second cell; and applies the configuration information of the second cell after the first message is received.

[0753] The first transmitter, 901, sends the second signal;

[0754] In Example 9, the first signal triggers the second signal; the second signal triggers the first message; the sender of the first signal and the receiver of the second signal are both second nodes; the second node is the sustaining base station of the second cell; the configuration information of the second cell includes the first identity of the first node.

[0755] As an example, receiving the first message triggers the application of the configuration information of the second cell to perform the behavior.

[0756] As an example, after the first message is received, the first transmitter 901 receives a first signaling, which is a protocol layer signaling below the RRC sublayer, and the first signaling indicates the second cell; wherein, the first signaling triggers the behavior to apply the configuration information of the second cell.

[0757] As one embodiment, after the first message is received, the first transmitter 901 applies the configuration information of the second cell as a response to the fulfillment of the first execution condition; wherein the first message includes the first execution condition.

[0758] As one embodiment, the first receiver 902 receives a fourth message, the fourth message including the second identity of the first node; wherein the second signal carries the second identity of the first node.

[0759] As an example, the second signal triggering the first message means that: the second signal triggers the second message, and the second message triggers the first message; the recipient of the second message is the sustaining base station of the first cell; and the sender of the second message is the sustaining base station of the second cell.

[0760] As an example, the third message triggers the first signal; the recipient of the third message is the sustaining base station of the second cell; and the sender of the third message is the sustaining base station of the first cell.

[0761] As an example, the first receiver 902 is capable of receiving radar signals.

[0762] As one embodiment, the first receiver 902 includes a radar antenna.

[0763] As one embodiment, the first receiver 902 includes a radar receiver.

[0764] As one embodiment, the first receiver 902 includes a radar detector.

[0765] As an example, the first transmitter 901 is capable of transmitting radar signals.

[0766] As one embodiment, the first transmitter 901 includes a radar antenna.

[0767] As one embodiment, the first transmitter 901 includes a radar transmitter.

[0768] As one embodiment, the first receiver 902 includes the appendix to this application. Figure 4The antenna 452, receiver 454, multi-antenna receiver processor 458, receiver processor 456, controller / processor 459, memory 460, or data source 467 are at least one of these.

[0769] As one embodiment, the first receiver 902 includes the appendix to this application. Figure 4 At least antenna 452 and receiver 454 are included.

[0770] As one embodiment, the first transmitter 901 includes the appendix to this application. Figure 4 The antenna 452 or transmitter 454 or multi-antenna transmitter processor 457 or transmitter processor 468 or controller / processor 459 or memory 460 or data source 467 is at least one of them.

[0771] As one embodiment, the first transmitter 901 includes the appendix to this application. Figure 4 At least antenna 452 and transmitter 454 are included.

[0772] Example 10

[0773] Example 10 illustrates a structural block diagram of a processing apparatus for a second node according to an embodiment of this application; as shown in the appendix. Figure 10 As shown. In the appendix Figure 10 In the second node, the processing device 1000 includes a second transmitter 1001 and a second receiver 1002.

[0774] The second transmitter, 1001, sends the first signal;

[0775] The second receiver 1002 receives the second signal;

[0776] In Example 10, the receiver of the first signal receives a first message in a first cell, the first message including configuration information of a second cell; after the first message is received, the receiver of the first signal applies the configuration information of the second cell; the first signal triggers the second signal; the second signal triggers the first message; the second node is the sustaining base station of the second cell.

[0777] As an example, the second transmitter 1001 sends a second message, the second message including the configuration information of the second message; wherein, the second signal triggering the first message means: the second signal triggers the second message, and the second message triggers the first message; the receiver of the second message is the sustaining base station of the first cell.

[0778] As one example, in response to the receipt of the second signal, the second message is sent.

[0779] As an example, the second message is sent after the second signal is received.

[0780] As an example, the second message is sent after the second signal is received.

[0781] As one example, whether the second message is sent depends on the second signal.

[0782] As one example, whether the second message is sent is related to the second signal.

[0783] As one example, whether the second message is sent after the second signal is received depends on the gNB implementation.

[0784] As one example, after the second signal is received, whether the second message is sent depends on the interaction result between the gNB and the core network.

[0785] As one embodiment, the second receiver 1002 receives a third message; wherein the third message triggers the first signal; and the sender of the third message is the sustaining base station of the first cell.

[0786] As an example, the first signal is sent in response to the receipt of the third message.

[0787] As an example, the first signal is sent in response to the receipt of the third message.

[0788] As an example, the first signal is sent after the third message is received.

[0789] As an example, the first signal is sent after the third message is received.

[0790] As one example, whether the first signal is sent depends on the third message.

[0791] As one example, whether the first signal is sent is related to the third message.

[0792] As an example, whether the first signal is sent after the third message is received depends on the gNB implementation.

[0793] As an example, after the third message is received, whether the first signal is sent depends on the interaction result between the gNB and the core network.

[0794] As an example, receiving the first message triggers the receiver of the first signal to apply the configuration information of the second cell.

[0795] As an example, after the first message is received, the receiver of the first signal receives a first signaling, which is a protocol layer signaling below the RRC sublayer, and the first signaling indicates the second cell; the first signaling triggers the receiver of the first signal to apply the configuration information of the second cell.

[0796] As an example, after the first message is received, in response to the fulfillment of the first execution condition, the receiver of the first signal applies the configuration information of the second cell; the first message includes the first execution condition.

[0797] As one embodiment, the receiver of the first signal receives a fourth message, the fourth message including a second identity of the receiver of the first signal; the second signal carries the second identity of the receiver of the first signal.

[0798] As one embodiment, the second transmitter 1001 includes the appendix to this application. Figure 4 The antenna 420, transmitter 418, multi-antenna transmitter processor 471, transmitter processor 416, controller / processor 475, or memory 476 are at least one of them.

[0799] As one embodiment, the second transmitter 1001 includes the appendix to this application. Figure 4 At least antenna 420 and transmitter 418 are included.

[0800] As one embodiment, the second receiver 1002 includes the appendix to this application. Figure 4 The antenna 420, receiver 418, multi-antenna receiver processor 472, receiver processor 470, controller / processor 475, or memory 476 are at least one of them.

[0801] As one embodiment, the second receiver 1002 includes the appendix to this application. Figure 4 At least antenna 420 and receiver 418 are included.

[0802] Example 11

[0803] Example 11 illustrates a structural block diagram of a processing apparatus for a third node according to an embodiment of this application; as shown in the appendix. Figure 11 As shown. In the appendix Figure 11 In the process, the processing device 1100 in the third node includes a third processor 1101.

[0804] The third processor 1101 sends a first message in the first cell, the first message including the configuration information of the second cell;

[0805] In Example 11, after the first message is received, the recipient of the first message applies the configuration information of the second cell; the first signal triggers the second signal; the second signal triggers the first message; the sender of the first signal and the recipient of the second signal are both second nodes; the second node is the sustaining base station of the second cell.

[0806] As an example, the third processor 1101 sends a fourth message, the fourth message including the second identity of the recipient of the first message; wherein the second signal carries the second identity of the recipient of the first message.

[0807] As an example, the third processor 1101 receives a second message, the second message including the configuration information of the second message; wherein, the second signal triggering the first message means: the second signal triggers the second message, and the second message triggers the first message; the recipient of the second message is the sustaining base station of the first cell.

[0808] As one example, the first message is sent in response to the receipt of the second message.

[0809] As an example, the first message is sent after the second message is received.

[0810] As an example, the first message is sent after the second message is received.

[0811] As one example, whether the first message is sent depends on the second message.

[0812] As one example, whether the first message is sent is related to the second message.

[0813] As one example, whether the first message is sent after the second message is received depends on the gNB implementation.

[0814] As an example, after the second message is received, whether the first message is sent depends on the interaction result between the gNB and the core network.

[0815] As an example, the third processor 1101 sends a third message; wherein the third message triggers the first signal; and the recipient of the third message is the sustaining base station of the second cell.

[0816] As an example, after the first message is sent, the third processor 1101 sends a first signaling, which is a protocol layer signaling below the RRC sublayer, and the first signaling indicates the second cell; wherein, the first signaling triggers the recipient of the first message to apply the configuration information of the second cell.

[0817] As an example, receiving the first message triggers the recipient of the first message to apply the configuration information of the second cell.

[0818] As an example, after the first message is received, in response to the fulfillment of the first execution condition, the recipient of the first message applies the configuration information of the second cell; wherein the first message includes the first execution condition.

[0819] As one embodiment, the third processor 1101 includes a third receiver.

[0820] As one embodiment, the third processor 1101 includes a third transmitter.

[0821] As one embodiment, the third processor 1101 includes a third receiver and a third transmitter.

[0822] As one embodiment, the third transmitter includes the appendix to this application. Figure 4 The antenna 420, transmitter 418, multi-antenna transmitter processor 471, transmitter processor 416, controller / processor 475, or memory 476 are at least one of them.

[0823] As one embodiment, the third transmitter includes the appendix to this application. Figure 4 At least antenna 420 and transmitter 418 are included.

[0824] As one embodiment, the third receiver includes the appendix to this application. Figure 4 The antenna 420, receiver 418, multi-antenna receiver processor 472, receiver processor 470, controller / processor 475, or memory 476 are at least one of them.

[0825] As one embodiment, the third receiver includes the appendix to this application. Figure 4 At least antenna 420 and receiver 418 are included.

[0826] Example 12

[0827] Example 12 illustrates a schematic diagram of the time-domain resources occupied by a first signal and a second signal according to an embodiment of this application; as shown in the attached diagram. Figure 12 As shown.

[0828] In Example 12, the time domain resources occupied by the first signal and the time domain resources occupied by the second signal are both within the second type of time interval T2 and outside the first type of time interval T1.

[0829] As an example, the first type of time interval is used for communication.

[0830] As an example, the first type of time interval is a wireless frame.

[0831] As an example, the first type of time interval is half a frame.

[0832] As an example, the first type of time interval is a wireless subframe.

[0833] As an example, the first type of time interval is a slot.

[0834] As an example, the first type of time interval is a mini slot.

[0835] As an example, the first type of time interval is an OFDM symbol.

[0836] As an example, the first type of time interval is assigned to the PDCCH.

[0837] As an example, the first type of time interval is assigned to PDSCH.

[0838] As an example, the first type of time interval is assigned to PBCH.

[0839] As an example, the first type of time interval is assigned to PUCCH.

[0840] As an example, the first type of time interval is assigned to PUSCH.

[0841] As an example, the first type of time interval is assigned to PRACH.

[0842] As an example, the first type of time interval is used as a reference signal.

[0843] As an example, the second type of time interval is used for sensing.

[0844] As one embodiment, the first signal transmission time is aligned with the start time of the second type of time interval.

[0845] As an example, the first signal transmission time is not aligned with the start time of the second type of time interval.

[0846] As an example, the transmission of the first signal and the reception of the second signal do not overlap in the time domain.

[0847] As an example, the transmission of the first signal and the reception of the second signal coincide in the time domain.

[0848] As one embodiment, the transmission of the first signal and the reception of the second signal partially overlap in the time domain.

[0849] As an example, the time-domain length of the first signal is an integer multiple of the OFDM symbol.

[0850] As an example, the time-domain length of the first signal is an integer multiple of the slot.

[0851] As an example, the time domain length of the first signal is an integer multiple of half a frame.

[0852] As an example, the time-domain length of the first signal is not an integer multiple of the OFDM symbol.

[0853] As an example, the time-domain length of the second signal is an integer multiple of the OFDM symbol.

[0854] As an example, the time-domain length of the second signal is an integer multiple of the slot.

[0855] As an example, the time domain length of the second signal is an integer multiple of half a frame.

[0856] As an example, the time-domain length of the second signal is not an integer multiple of the OFDM symbol.

[0857] As an example, the time domain length of the second signal is equal to the time domain length of the first signal.

[0858] As one embodiment, the time domain length of the second signal is not equal to the time domain length of the first signal.

[0859] As one example, the transmission time of the first signal is aligned with the wireless frame.

[0860] As an example, the transmission time of the first signal is aligned with the slot.

[0861] As an example, the transmission time of the first signal is aligned with the OFDM symbol.

[0862] As an example, the transmission time of the first signal is not aligned with the wireless frame.

[0863] As an example, the transmission time of the first signal is not aligned with the slot.

[0864] As an example, the transmission time of the first signal is not aligned with the OFDM symbol.

[0865] As an example, the portion of the second type of time interval other than the first signal and the second signal is zero power.

[0866] As an example, the portion of the second type of time interval other than the first signal and the second signal is mute.

[0867] As an example, the portion of the second type of time interval other than the first signal and the second signal can be used for wireless transmission.

[0868] As an example, the portion of the second type of time interval other than the first signal and the second signal can be used for wireless communication.

[0869] As an example, the edge of the second type of time interval is aligned with the edge of the first time interval.

[0870] As an example, the edge of the second type of time interval is not aligned with the edge of the first time interval.

[0871] As an example, this embodiment does not limit other specific implementations of the first signal and the second signal in this application.

[0872] Those skilled in the art will understand that all or part of the steps in the above methods can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium, such as a read-only memory, hard disk, or optical disk. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiments can be implemented in hardware or in the form of software functional modules. This application is not limited to any specific combination of software and hardware. The user equipment, terminal, and UE in this application include, but are not limited to, drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablets, laptops, vehicle-mounted communication devices, wireless sensors, internet cards, IoT terminals, RFID terminals, NB-IoT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, internet cards, vehicle-mounted communication devices, low-cost mobile phones, low-cost tablets, and other wireless communication devices. The base station or system equipment 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), TRP (Transmitter Receiver Point), and other wireless communication equipment.

[0873] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A user equipment (UE) configured to wirelessly communicate with a serving cell base station maintaining a first cell and a target cell base station maintaining a second cell, characterized in that, The UE comprises: a transceiver; a processor, wherein the transceiver and the processor are configured to: receive a first signal from the target cell base station, in response to receiving the first signal, send a second signal to the target cell base station to trigger the target cell base station to send a second message to the serving cell base station, in response to the second message, receive a first message from the serving cell base station, the first message comprising configuration information of the second cell, wherein the configuration information of the second cell comprises first identification information for the UE, and after the first message is received, apply the configuration information of the second cell.

2. The UE of claim 1, wherein, The transceiver and the processor are further configured to, in response to receiving the first message, apply the configuration information of the second cell.

3. The UE of claim 1, wherein, The transceiver and the processor are further configured to: after the first message is received, receive first signaling, wherein the first signaling is signaling of a protocol layer below a radio resource control (RRC) sublayer, wherein the first signaling indicates the second cell, and in response to receiving the first signaling, apply the configuration information of the second cell.

4. The UE of claim 1, wherein, The first message comprises a first execution condition, and The transceiver and the processor are further configured to, in response to the first execution condition being satisfied, apply the configuration information of the second cell.

5. The UE of any one of claims 1-4, wherein, The transceiver and the processor are further configured to: receive a fourth message comprising second identification information for the UE, and send the second signal carrying the second identification information for the UE received in the fourth message.

6. A method in a UE used for wireless communication with a serving cell base station maintaining a first cell and with a target cell base station maintaining a second cell, characterized by, Comprise: receiving a first signal from the target cell base station; in response to receiving the first signal, sending a second signal to the target cell base station to trigger the target cell base station to send a second message to the serving cell base station; in response to the second message, receiving a first message from the serving cell base station, the first message comprising configuration information of the second cell, wherein the configuration information of the second cell comprises first identification information for the UE; and after the first message is received, applying the configuration information of the second cell.

7. The method of claim 6, wherein, Comprise: in response to the first message being received, applying the configuration information of the second cell.

8. The method of claim 6, wherein, Further comprise: after the first message is received, receiving first signaling, wherein the first signaling is signaling of a protocol layer below a radio resource control (RRC) sublayer, wherein the first signaling indicates the second cell, and in response to receiving the first signaling, applying the configuration information of the second cell.

9. The method of claim 6, wherein, Wherein: the first message comprises a first execution condition, and The method further comprises, in response to the first execution condition being satisfied, applying the configuration information of the second cell.

10. The method according to any one of claims 6 to 9, characterized in that, Further comprise: receiving a fourth message comprising second identification information for the UE, and sending the second signal carrying the second identification information for the UE received in the fourth message.

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