Method and apparatus for wake-up signal transmission

Abstract

Methods, apparatuses, and systems for communication are disclosed. One of the methods includes receiving, from a first cell, wake-up signal configuration information for a target cell of one or more second cells, the wake-up signal configuration information including an identification of the target cell and a termination indicator(s) supported by the target cell; receiving one or more synchronization signal blocks (SSBs) from the one or more second cells, each of the one or more SSBs including an ID of a corresponding one of the one or more second cells; determining whether a condition for triggering a wake-up signal for the target cell is satisfied; transmitting, in response to determining that the condition for triggering the wake-up signal is satisfied, the wake-up signal; receiving, from the target cell, a response signal as a response to the wake-up signal; and initiating a connection with the target cell based on the response signal.

Description

Cross-referencing of related patent applications

[0001] This application claims the benefit of U.S. Provisional Application No. 63 / 568,856, filed March 22, 2024, entitled “METHODS AND APPARATUSES FORWAKE-UP SIGNAL TRANSMISSION”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] The apparatuses and methods consistent with this disclosure generally relate to communications, and more specifically, to methods, systems and devices for transmitting wake-up signals in communications. Background Technology

[0003] As mobile communications continue to evolve across industries and services and applications become increasingly complex, the energy consumption and operating costs of mobile networks have become a significant concern. Implementing network energy savings (NES) in radio access networks is a promising strategy for reducing overall mobile network energy consumption. NES cell nodes are designed to enter a "sleep mode" when they are not actively serving users, especially during low-traffic periods, while still maintaining overall network coverage by relying on neighboring active cells. NES cell nodes can be activated by a wake-up signal from user equipment (UE) and can transmit system information block (SIB) signals on demand, rather than relying on the traditional method of periodically broadcasting SIB signals. UEs can request specific system information from NES cell nodes as needed, rather than automatically receiving it at predetermined intervals. For example, a UE in radio resource control (RRC) idle or RRC inactive state can send a wake-up signal to an NES cell to trigger the NES cell to transmit on-demand SIB type 1 (SIB1). However, challenges exist in transmitting the wake-up signal used for on-demand SIB signals. For example, when multiple NES cells exist nearby, the UE may not be able to determine which NES cell to trigger. Furthermore, the UE may not know when to trigger and stop on-demand SIB transmissions. There is a need for systems and methods that can efficiently and effectively trigger specific NES cells and control the timing of on-demand SIB signal transmissions. Summary of the Invention

[0004] According to some embodiments of this disclosure, a node for communication is provided. The node includes: a memory storing instructions; and a processor configured to execute the instructions stored in the memory to: receive wake-up signal configuration information for a target cell in one or more second cells from a first cell, the wake-up signal configuration information including an identifier (ID) of the target cell and one or more termination indicators supported by the target cell; receive one or more synchronization signal blocks (SSBs) from the one or more second cells, each of the one or more SSBs including an ID of a corresponding one of the one or more second cells; determine whether a condition for triggering a wake-up signal for the target cell is met; transmit the wake-up signal in response to determining that the condition for triggering the wake-up signal is met; receive a response signal from the target cell as a response to the wake-up signal; and initiate a connection with the target cell based on the response signal received from the target cell.

[0005] According to some embodiments of this disclosure, a second node for a second cell in communication is provided. The second node includes: a memory storing instructions; and a processor configured to execute the instructions stored in the memory to: transmit wake-up signal configuration information for the second cell to a first cell, the wake-up signal configuration information including the ID of the second cell and one or more termination indicators supported by the second cell; transmit an SSB to a first node, the SSB including the ID of the second cell; receive a wake-up signal from the first node; and transmit a response signal to the first node as a response to the wake-up signal.

[0006] According to some embodiments of this disclosure, a node for communication is provided. The node includes: a memory storing instructions; and a processor configured to execute the instructions stored in the memory to: receive wake-up signal configuration information for the first cell and one or more termination indicators supported by one or more second cells from the one or more second cells; receive one or more SSBs from the one or more second cells, each of the one or more SSBs including an ID of a corresponding one of the one or more second cells; determine whether a condition for triggering a wake-up signal for a target cell among the one or more second cells is met; in response to determining that the condition for triggering the wake-up signal is met, transmit the wake-up signal for the target cell to the first cell; receive a response signal from the target cell as a response to the wake-up signal; and initiate a connection with the target cell based on the response signal received from the target cell.

[0007] According to some embodiments of this disclosure, a second node for a second cell in communication is provided. The second node includes: a memory storing instructions; and a processor configured to execute the instructions stored in the memory to: transmit wake-up signal configuration information for the second cell to a first cell, the wake-up signal configuration information including the ID of the second cell and one or more termination indicators supported by the second cell; transmit an SSB to a first node, the SSB including the ID of the second cell; receive a wake-up signal from the first cell; and transmit a response signal to the first node as a response to the wake-up signal.

[0008] According to some embodiments of this disclosure, a cell node is provided for a first cell in communication. The cell node includes: a memory storing instructions; and a processor configured to execute the instructions stored in the memory to: receive from at least one second cell an ID of the at least one second cell and one or more termination indicators supported by the at least one second cell; transmit to the first node wake-up signal configuration information for the first cell, the wake-up signal configuration information including the one or more termination indicators supported by the at least one second cell; receive from the first node a wake-up signal for the at least one second cell; and transmit to the at least one second cell a wake-up signal corresponding to the wake-up signal received from the first node.

[0009] According to some embodiments of this disclosure, a method for a node to communicate is provided. The method includes: receiving wake-up signal configuration information for a target cell in one or more second cells from a first cell, the wake-up signal configuration information including an ID of the target cell and one or more termination indicators supported by the target cell; receiving one or more Service Stubs (SSBs) from the one or more second cells, each of the one or more SSBs including an ID of a corresponding one of the one or more second cells; determining whether a condition for triggering a wake-up signal for the target cell is met; transmitting the wake-up signal in response to determining that the condition for triggering the wake-up signal is met; receiving a response signal from the target cell as a response to the wake-up signal; and initiating a connection with the target cell based on the response signal received from the target cell.

[0010] According to some embodiments of this disclosure, a method is provided for a second node in a second cell during communication. The method includes: transmitting wake-up signal configuration information for the second cell to a first cell, the wake-up signal configuration information including an ID of the second cell and one or more termination indicators supported by the second cell; transmitting an SSB to a first node, the SSB including the ID of the second cell; receiving a wake-up signal from the first node; and transmitting a response signal to the first node as a response to the wake-up signal.

[0011] According to some embodiments of this disclosure, a method for a node to communicate is provided. The method includes: receiving wake-up signal configuration information for the first cell and one or more termination indicators supported by one or more second cells from the first cell; receiving one or more SSBs from the one or more second cells, each of the one or more SSBs including an ID of a corresponding one of the one or more second cells; determining whether a condition for triggering a wake-up signal for a target cell among the one or more second cells is met; in response to determining that the condition for triggering the wake-up signal is met, transmitting the wake-up signal for the target cell to the first cell; receiving a response signal from the target cell as a response to the wake-up signal; and initiating a connection with the target cell based on the response signal received from the target cell.

[0012] According to some embodiments of this disclosure, a method is provided for a second node in a second cell during communication. The method includes: transmitting wake-up signal configuration information for the second cell to a first cell, the wake-up signal configuration information including an ID of the second cell and one or more termination indicators supported by the second cell; transmitting an SSB to a first node, the SSB including the ID of the second cell; receiving a wake-up signal from the first cell; and transmitting a response signal to the first node as a response to the wake-up signal.

[0013] According to some embodiments of this disclosure, a method is provided for a cell node in a first cell during communication. The method includes: receiving from at least one second cell an ID of the at least one second cell and one or more termination indicators supported by the at least one second cell; transmitting to the first node wake-up signal configuration information for the first cell, the wake-up signal configuration information including the one or more termination indicators supported by the at least one second cell; receiving from the first node a wake-up signal for the at least one second cell; and transmitting to the at least one second cell a wake-up signal corresponding to the wake-up signal received from the first node.

[0014] According to some embodiments of this disclosure, a non-transitory computer-readable medium is provided storing instructions executable by one or more processors of a node for communication to perform a method. The method includes: receiving wake-up signal configuration information for a target cell in one or more second cells from a first cell, the wake-up signal configuration information including an ID of the target cell and one or more termination indicators supported by the target cell; receiving one or more SSBs from the one or more second cells, each of the one or more SSBs including an ID of a corresponding one of the one or more second cells; determining whether a condition for triggering a wake-up signal for the target cell is met; transmitting the wake-up signal in response to determining that the condition for triggering the wake-up signal is met; receiving a response signal from the target cell as a response to the wake-up signal; and initiating a connection with the target cell based on the response signal received from the target cell.

[0015] According to some embodiments of this disclosure, a non-transitory computer-readable medium is provided storing instructions executable by one or more processors of a second node in a second cell for communication, to perform a method. The method includes: transmitting wake-up signal configuration information for the second cell to a first cell, the wake-up signal configuration information including an ID of the second cell and one or more termination indicators supported by the second cell; transmitting an SSB to a first node, the SSB including the ID of the second cell; receiving a wake-up signal from the first node; and transmitting a response signal to the first node as a response to the wake-up signal.

[0016] According to some embodiments of this disclosure, a non-transitory computer-readable medium is provided storing instructions executable by one or more processors of a node for communication to perform a method. The method includes: receiving wake-up signal configuration information for the first cell and one or more termination indicators supported by one or more second cells from the one or more second cells; receiving one or more SSBs from the one or more second cells, each of the one or more SSBs including an ID of a corresponding one of the one or more second cells; determining whether a condition for triggering a wake-up signal for a target cell among the one or more second cells is met; in response to determining that the condition for triggering the wake-up signal is met, transmitting the wake-up signal for the target cell to the first cell; receiving a response signal from the target cell as a response to the wake-up signal; and initiating a connection with the target cell based on the response signal received from the target cell.

[0017] According to some embodiments of this disclosure, a non-transitory computer-readable medium is provided storing instructions executable by one or more processors of a second node in a second cell for communication, to perform a method. The method includes: transmitting wake-up signal configuration information for the second cell to a first cell, the wake-up signal configuration information including an ID of the second cell and one or more termination indicators supported by the second cell; transmitting an SSB to a first node, the SSB including the ID of the second cell; receiving a wake-up signal from the first cell; and transmitting a response signal to the first node as a response to the wake-up signal.

[0018] According to some embodiments of this disclosure, a non-transitory computer-readable medium is provided storing instructions executable by one or more processors of a cell node for a first cell in communication to perform a method. The method includes: receiving from at least one second cell an ID of the at least one second cell and one or more termination indicators supported by the at least one second cell; transmitting to a first node the wake-up signal configuration information for the first cell, the wake-up signal configuration information including the one or more termination indicators supported by the at least one second cell; receiving from the first node the wake-up signal for the at least one second cell; and transmitting to the at least one second cell a wake-up signal corresponding to the wake-up signal received from the first node. Attached Figure Description

[0019] [ Figure 1A ] Figure 1A This is a schematic diagram illustrating a first deployment scenario of on-demand SIB1 for RRC idle / inactive UEs in the art.

[0020] [ Figure 1B ] Figure 1B This is a schematic diagram illustrating a second deployment scenario of on-demand SIB1 for RRC idle / inactive UEs in the art.

[0021] [ Figure 1C ] Figure 1C This is a schematic diagram illustrating a third deployment scenario of on-demand SIB1 for RRC idle / inactive UEs in this field.

[0022] [ Figure 1D ] Figure 1D This is a schematic diagram illustrating the fourth deployment scenario of on-demand SIB1 for RRC idle / inactive UEs in this field.

[0023] [ Figure 2 ] Figure 2 This is a schematic diagram illustrating the high-level process of on-demand SIB1 provided by NES cells in this field.

[0024] [ Figure 3 ] Figure 3 This is a schematic diagram illustrating the overall flow of an on-demand SIB1 triggered by an uplink wake-up signal in the art.

[0025] [ Figure 4 ] Figure 4 This is a schematic diagram illustrating a process for transmitting a wake-up signal that is consistent with some embodiments of this disclosure.

[0026] [ Figure 5 ] Figure 5 This is a schematic diagram illustrating a process for transmitting a wake-up signal that is consistent with some embodiments of this disclosure.

[0027] [ Figure 6 ] Figure 6 This is a flowchart illustrating a method for communication of nodes consistent with some embodiments of this disclosure.

[0028] [ Figure 7 ] Figure 7 This is a flowchart illustrating a method for a second node in a second cell for communication, consistent with some embodiments of this disclosure.

[0029] [ Figure 8 ] Figure 8 This is a flowchart illustrating a method for communication of nodes consistent with some embodiments of this disclosure.

[0030] [ Figure 9 ] Figure 9 This is a flowchart illustrating a method for a second node in a second cell for communication, consistent with some embodiments of this disclosure.

[0031] [ Figure 10 ] Figure 10 This is a flowchart illustrating a method for a cell node in a first cell for communication, consistent with some embodiments of this disclosure.

[0032] [ Figure 11 ] Figure 11 This is a block diagram illustrating a node for communication consistent with some embodiments of this disclosure. Detailed Implementation

[0033] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings, wherein the same numerals in different drawings denote the same or similar elements unless otherwise indicated. The embodiments set forth in the following description of exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of systems, apparatuses, and methods consistent with the aspects of this disclosure as described in the appended claims.

[0034] In this disclosure, the term "node" is used as a general term, including but not limited to UE, one or more vehicles, one or more vehicle modules, and one or more network infrastructure nodes, such as base stations, core networks, roadside units, repeaters, transponders, wireless routers, controllers, access points, and their subsystems.

[0035] As mobile communications continue to evolve across industries, denser networks, increased antenna deployments, expanded bandwidth, and the use of multiple frequency bands are becoming common practices for enabling more complex services and applications. However, these prevalent approaches can lead to increased energy consumption and operating costs, potentially conflicting with broader goals of environmental sustainability.

[0036] It is reported that energy costs in mobile networks can account for approximately 23% of total mobile network operating costs. A significant portion of this energy consumption is attributed to the radio access network, such as active antenna units. Therefore, enhancing network energy efficiency in the radio access network can play a crucial role in reducing the overall energy consumption of mobile networks.

[0037] In the 3rd Generation Partnership Project (3GPP) Release 18 study, potential network energy-saving technologies in various domains were evaluated for energy-saving gains and corresponding performance impacts, based on agreed base station energy consumption models, evaluation methods, and assumptions. Furthermore, specific key performance indicators (KPIs), such as user-perceived throughput (UPT), access latency, and UE power consumption, were also considered.

[0038] This study found several techniques to be beneficial, for example, for RRC-connected UEs, user-specific signals and channels, and low-load scenarios. Other beneficial techniques may include on-demand SSB and on-demand SIB1 transmission, as well as adaptation for common signal and / or channel transmission. At least some embodiments of this disclosure relate to on-demand SIB transmission, for example, for RRC idle / inactive UEs, consistent with the new work item on network enhancements in 3GPP Release 19. The term "RRC idle / inactive UE" described in this disclosure may include at least one UE in an RRC idle state or an RRC inactive state.

[0039] Figure 1A This is a schematic diagram illustrating a first deployment scenario of on-demand SIB1 for RRC idle / inactive UEs in this field. (Reference) Figure 1AThe communication system includes UE 102, anchor cell node 104 of cell 108, and non-anchor cell node 106 of non-anchor cell 110. In this disclosure, the term "anchor cell" can include, but is not limited to, cells that transmit SIB1 as in conventional procedures. The UE may be able to detect and camp on an anchor cell. In this disclosure, the term "non-anchor cell" can include, but is not limited to, cells that support SIB1 functionality in addition to conventional SIB1 operation, wherein SIB1 information from a non-anchor cell can be transmitted via an anchor cell or a non-anchor cell based on a request from the UE using uplink on-demand signals. A non-anchor cell can be a Network Energy Saving (NES) cell. Figure 1A In this context, UE 102 is camped on anchored cell 108. UE 102 can be an RRC idle / inactive UE.

[0040] exist Figure 1A In the illustrated scenario, anchor cell node 104 can handle on-demand signal configuration to UE 102 and on-demand signal reception from UE 102. Specifically, in step 112, anchor cell node 104 and non-anchor cell node 106 exchange on-demand (OD) SIB1 request signal configurations via backhaul signaling, i.e., wake-up signal configurations related to on-demand (OD) SIB1 requests. For example, non-anchor cell node 106 can send OD-SIB1 request signal configurations to anchor cell node 104. In step 114, anchor cell node 104 sends the received OD-SIB1 request signal configuration to UE 102. Based on the OD-SIB1 request signal configuration, in step 116, UE 102 sends an OD-SIB1 request signal to anchor cell node 104. After receiving the OD-SIB1 request signal, in step 118, anchor cell node 104 sends the corresponding OD-SIB1 of non-anchor cell node 106 to UE 102. In this manner, anchored cell node 104 processes on-demand signal configuration to UE 102 and on-demand signal reception from UE 102 based on information exchanged with non-anchored cell node 106 via backhaul signaling. From a network energy-saving perspective, non-anchored cell node 106 can achieve optimal network-side energy-saving performance in this scenario, requiring only energy for backhaul signaling information exchange. This eliminates the need for UE 102 to switch between anchored cell node 104 and non-anchored cell node 106 to obtain on-demand SIB1.

[0041] Figure 1B This is a schematic diagram illustrating a second deployment scenario of on-demand SIB1 for RRC idle / inactive UEs in this field. (Reference) Figure 1BThe communication system includes UE 120, anchored cell node 122 of cell 126, and non-anchored cell node 124 of non-anchored cell 128. Non-anchored cell 128 can be an NES cell. UE 120 camps on cell 126. UE 120 can be an RRC idle / inactive UE. Figure 1B In the scenario shown, anchor cell node 122 triggers non-anchor cell node 124 to send on-demand SIB1 from non-anchor cell node 124, wherein anchor cell node 122 processes on-demand signal configuration to UE 120 and on-demand signal reception from UE 120.

[0042] Specifically, in step 130, the anchored cell node 122 sends an OD-SIB1 request signal configuration to the UE 120. Based on the received OD-SIB1 request signal configuration, in step 132, the UE 120 sends an OD-SIB1 request signal to the anchored cell node 122. After receiving the OD-SIB1 request signal, in step 134, the anchored cell node 122 sends a trigger signal to the non-anchored cell node 124 via backhaul signaling. After receiving the trigger signal, the non-anchored cell node 124 is activated and sends OD-SIB1 to the UE 120. Figure 1B The deployment requires UE 120 to switch between anchored cell node 122 and non-anchored cell node 124 to obtain on-demand SIB1.

[0043] Figure 1C This is a schematic diagram illustrating a third deployment scenario of on-demand SIB1 for RRC idle / inactive UEs in this field. (Reference) Figure 1C The communication system includes UE 136, anchored cell node 138 of cell 142, and non-anchored cell node 140 of non-anchored cell 144. Non-anchored cell 144 can be an NES cell. UE 136 camps on cell 142. UE 136 can be an RRC idle / inactive UE. Figure 1C In the illustrated scenario, anchored cell node 138 only handles on-demand signaling configuration to UE 136. For non-co-located cells, on-demand signaling configuration information can be exchanged in advance via backhaul signaling. Non-anchored cell node 140 handles on-demand signaling reception and on-demand SIB1 transmission from UE 136 itself. In this disclosure, the terms "co-located cell" or "co-located cell" can include, but are not limited to, anchored and non-anchored cells sharing the same cell node (e.g., gNB), where information exchange between the two cells is performed via an internal interface. In this disclosure, the terms "non-co-located cell" or "non-co-located cell" can include, but are not limited to, anchored and non-anchored cells having different cell nodes (e.g., gNB), where information exchange between the two cells is performed via a backhaul interface (e.g., Xn).

[0044] Specifically, in step 146, the anchored cell node 138 and the non-anchored cell node 140 exchange ODSIB1 request signal configurations via backhaul signaling. For example, the non-anchored cell node 140 may send an OD-SIB1 request signal configuration to the anchored cell node 138. In step 148, the anchored cell node 138 sends the OD-SIB1 request signal configuration to the UE 136. Based on the received OD-SIB1 request signal configuration, in step 150, the UE 136 sends an OD-SIB1 request signal to the non-anchored cell node 140. After receiving the OD-SIB1 request signal, in step 152, the non-anchored cell node 140 sends an OD-SIB1 to the UE 136. Figure 1C The deployment in the system requires non-anchored cell node 140 to monitor on-demand signal reception, which increases the energy consumption of non-anchored cell node 140. Figure 1C The deployment also requires UE 136 to switch between anchored cell node 138 and non-anchored cell node 140 to obtain on-demand SIB1.

[0045] Figure 1D This is a schematic diagram illustrating a fourth deployment scenario of on-demand SIB1 for RRC idle / inactive UEs in this field. (Reference) Figure 1D The communication system includes UE 154, anchored cell node 156 of cell 160, and non-anchored cell node 158 of non-anchored cell 162. Non-anchored cell 162 can be an NES cell. UE 154 camps on cell 160. UE 154 can be an RRC idle / inactive UE. Figure 1D In the scenario shown, the operation of on-demand SIB1 is independent of anchored cell node 156, where non-anchored cell node 158 handles on-demand signal configuration to UE 154 and on-demand signal reception from UE 154. Non-anchored cell node 158 also handles on-demand SIB1 delivery to UE 154.

[0046] Specifically, in step 164, the non-anchored cell node 158 sends an OD-SIB1 request signal configuration to the UE 154. Based on the received OD-SIB1 request signal configuration, in step 166, the UE 154 sends an OD-SIB1 request signal to the non-anchored cell node 158. After receiving the OD-SIB1 request signal, in step 168, the non-anchored cell node 158 sends OD-SIB1 to the UE 154. Figure 1D The deployment in the system requires a mechanism to direct on-demand signals to UE 154. Figure 1D The deployment also requires UE 154 to switch between anchored cell node 156 and non-anchored cell node 158 to obtain on-demand SIB1.

[0047] Based on the above scenario, at least some embodiments of this disclosure address several key issues: (1) a method for delivering the configuration of the on-demand SIB1 request signal to the UE; (2) a decision regarding whether the UE should send a wake-up signal to an anchored cell or a non-anchored cell; and (3) a decision regarding whether the UE should receive on-demand SIB1 content from an anchored cell or a non-anchored cell.

[0048] Figure 2 This is a schematic diagram illustrating the high-level process 200 of on-demand SIB1 provided by an NES cell in this field. (Reference) Figure 2 UE 202 is requesting On-Demand SIB1 from NES cell 206. UE 202 may be an RRC idle / inactive UE. UE 202 is camped on anchor cell 204. In step 208, anchor cell 204 sends auxiliary information to UE 202. In this disclosure, the terms "cell," "cell node," and "node within a cell" are used interchangeably in describing the transmission or reception of signals. For example, a description of a cell transmitting a signal may indicate that a node within the cell (e.g., a base station) is transmitting that signal. In step 210, NES cell 206 sends a periodic SSB to UE 202, enabling UE 202 to monitor uplink wake-upsignal (UL-WUS). In step 212, NES cell 206 may also send auxiliary and / or configuration information to UE 202. For example, NES cell 206 may send wake-upsignal configuration information to UE 202. In step 214, UE 202 sends an uplink wake-up signal to NES cell 206 to request SIB1. In step 216, NES cell 206 sends an acknowledgment to UE 202 to confirm receipt of the uplink wake-up signal. In step 218, NES cell 206 sends one or more SIBs to UE 202. Figure 2 In this context, it might be more appropriate for UE 202 to directly send an uplink wake-up signal to the NES cell, similar to... Figure 1C The third deployment shown is not indirectly via anchor cell 204. Otherwise, if UE 202 sends an uplink wake-up signal to anchor cell 204, the network performs the necessary coordination to activate SIB1 on NES cell 206, and UE 202 switches to NES cell 206 to obtain the activated SIB1, there will be more latency and complexity for both the network node and UE 202, similar to... Figure 1B The second deployment is shown.

[0049] However, in Figure 2There are issues in the process that could lead to significant overhead during deployment. These issues may include: (1) a lack of specified details regarding auxiliary and / or configuration information, particularly regarding multiple NES cells; and (2) a lack of defined triggering conditions and termination criteria for on-demand SIB1 transmissions from (one or more) NES cells.

[0050] Figure 3 This is a schematic diagram illustrating the overall flow 300 of an on-demand SIB1 triggered by an uplink wake-up signal in the art. (Reference) Figure 3 UE 302 is requesting on-demand SIB1 from NES cell 306. UE 302 may be an RRC idle / inactive UE. UE 302 is camped on normal cell 304. In this disclosure, the term "normal cell" may include, but is not limited to, a cell with normal SIB1 transmission, as opposed to on-demand SIB1 transmission. In this disclosure, the terms "normal cell" and "anchored cell" are used interchangeably. UE 302 is about to move to NES cell 306, which does not have normal SIB1 transmission. NES cell 306 may represent one or more cells adjacent to normal cell 304 and in NES state.

[0051] In step 308, normal cell 304 transmits the wake-up signal (WUS) configuration and measurement configuration for NES cell 306 to UE 302. In step 310, UE 302 performs radio resource management (RRM) measurements on NES cell 306. In step 312, the UE determines whether the conditions for triggering the wake-up signal transmission (Tx) for NES cell 306 are met. In response to determining that the conditions for triggering the wake-up signal transmission are not met, UE 302 executes the procedure at step 310. On the other hand, in response to determining that the conditions for triggering the wake-up signal transmission are met, in step 314, UE 302 prepares for the wake-up signal transmission for NES cell 306. In step 316, UE 302 transmits an uplink wake-up signal to NES cell 306 to trigger SIB1 transmission at NES cell 306. In step 318, NES cell 306 transmits the requested SIB1 to UE 302. In step 320, UE 302 receives SIB1 by monitoring the Type 0 physical downlink control channel (PDCCH). In step 322, after receiving SIB1 from NES cell 306, UE 302 determines whether to reselect a cell to hand over to NES cell 306. In response to determining that cell reselection is required, in step 324, UE 302 camps on NES cell 306. In step 326, NES cell 306 may transmit paging messages as needed. In step 328, UE 302 monitors for paging messages, and in response to receiving a paging message, UE 302 may perform random access channel (RACH) transmission.

[0052] exist Figure 3 In the context of UE 302, when UE 302 moves from normal cell 304 to NES cell 306, UE 302 functions normally. Furthermore, the wake-up signal transmission is not problematic because the SSB is still transmitted normally as a timing reference. However, in... Figure 3 In this process, issues exist that can lead to significant overhead during deployment. These issues include: (1) a lack of specified details regarding auxiliary and / or configuration information, particularly regarding multiple NES cells; and (2) a lack of specified triggering conditions and termination criteria for on-demand SIB1 transmissions from (one or more) NES cells. At least some embodiments of this disclosure address the issues related to... Figures 1A to 1D The aforementioned issues related to the first, second, third, and fourth deployments are discussed below.

[0053] As mentioned above Figure 1AIn the first deployment discussed, SIB1 can be switched from non-anchored cells to anchored cells via backhaul signaling. Furthermore, in the first deployment, the anchored cell handles wake-up signal configuration and wake-up signal reception from the UE, as well as delivering SIB1 from non-anchored cells to the UE. One challenge associated with this deployment is the ambiguity surrounding the delivery of SIB1 messages to the UE when multiple non-anchored cells exist. Given that the maximum size of an SIB1 or system information (SI) message is 2976 bits, it remains uncertain which non-anchored cell's SIB should be delivered to the UE. Another challenge associated with this deployment is the uncertainty regarding when to trigger and stop on-demand SIB1 switching and delivery.

[0054] As mentioned above Figure 1B In the second deployment discussed, the anchor cell handles wake-up signal configuration and wake-up signal reception from the UE. Furthermore, the anchor cell can trigger non-anchor cells via backhaul signaling to enable them to deliver SIB1 to the UE. One challenge associated with this deployment is the ambiguity surrounding which non-anchor cell to trigger when multiple non-anchor cells exist. Another challenge associated with this deployment is the uncertainty regarding when to trigger and stop on-demand SIB1 delivery.

[0055] As mentioned above Figure 1C In the third deployment discussed, wake-up signal configuration information can be exchanged from the non-anchored cell to the anchored cell via backhaul signaling. Furthermore, the anchored cell only handles the wake-up signal configuration to the UE, while the non-anchored cell handles the reception of the wake-up signal from the UE and the delivery of its SIB1 to the UE. One challenge associated with this deployment is that wake-up signal configurations from multiple non-anchored cells may remain on the anchored cell, leading to unnecessary resource consumption. Another challenge associated with this deployment is the uncertainty regarding when to trigger and stop on-demand SIB1 delivery.

[0056] As mentioned above Figure 1D In the fourth deployment discussed, the non-anchored cell handles wake-up signal configuration and wake-up signal reception from the UE, as well as its SIB1 delivery to the UE, all independently of the anchored cell. One challenge associated with this deployment is that the only feasible solution is to obtain the configuration from the previously connected cell; however, this configuration may become invalid due to the unpredictable mobility of the UE in idle or inactive states. Another challenge associated with this deployment is the uncertainty regarding when to trigger and stop on-demand SIB1 delivery.

[0057] In relation to Figures 1A to 1DOf the four deployments described, the first deployment may impose a significant workload on the anchor cell and may be infeasible for legacy systems due to message size constraints. Furthermore, the fourth deployment operates as a standalone solution independent of the anchor cell. However, it may become ineffective due to the unpredictable mobility of the UE during idle or inactive states. At least some embodiments of this disclosure address problems associated with the second and third deployments. For example, at least some embodiments of this disclosure consider two key factors: (1) prior knowledge of which NES(one or more) cell(s) to trigger; and (2) the conditions for triggering and terminating on-demand SIB1 from (one or more) NES(one or more) cells.

[0058] In on-demand SIB1 delivery, the lack of prior knowledge about which NES cell to trigger can increase overhead when configuring wake-up signals for multiple NES cells. To address this issue, in some embodiments of this disclosure, determining which NES cell(s)(s) should transmit on-demand SIB1 is based on an identifier in the wake-up signal configuration associated with the NES cell(s). For example, the physical cell ID (PCI) obtained during decoding an SSB received from a neighboring cell during the UE's RRM measurement is used as the identifier.

[0059] In some embodiments of this disclosure, conditions are specified for triggering and terminating on-demand SIB1 from NES cells. For example, in some embodiments, an identifier in the wake-up signal associated with one or more NES cells is used to prevent false alarms from the NES cells. In some embodiments, the behavior pattern of the NES cell is used to define the expected wake-up operation of the NES cell. For example, in some embodiments, a repetition-based or duration-based behavior pattern of the NES cell is used to define the expected wake-up operation of the NES cell. In some embodiments, the conditions for triggering and terminating on-demand SIB1 from NES cells are specified by the requesting UE. At least some embodiments of this disclosure provide solutions for designing efficient and effective wake-up signal configurations that utilize fewer resources. Furthermore, these solutions can prevent false alarms and achieve controlled wake-up operation of NES cells.

[0060] Figure 4 This is a schematic diagram illustrating a wake-up signal transmission process 400 consistent with some embodiments of this disclosure. (See reference) Figure 4UE 402 can be an RRC idle / inactive UE. UE 402 camps on normal cell 404. NES cell 406 represents one or more cells adjacent to normal cell 404 and in NES state. In step 408, normal cell 404 and NES cell 406 exchange cell information using backhaul signaling. For example, base stations in normal cell 404 and NES cell 406 can perform backhaul signaling using the Xn interface on the base station. NES cell 406 can send its identifier (e.g., PCI), NES indication, supported NES behaviors, and specific wake-up signal configuration resource locations. Supported NES behaviors may include, for example, whether NES cell 406 supports termination by repetition, termination by duration, or termination by UE. For example, termination by repetition can be based on repetition in transmitted signals (e.g., SIB1) or repetition in received signals. NES cell 406 can decide to terminate based on a comparison of a determined repetition value with a threshold repetition value. For example, NES cell 406 may decide to terminate the transmission of the SIB1 signal in response to determining that the repeated transmission of the SIB1 signal exceeds a threshold. Termination by duration may be based on the duration of transmission of a type of signal (e.g., SIB1). NES cell 406 may decide to terminate based on a comparison of a determined duration value with a threshold duration value. For example, NES cell 406 may decide to terminate the transmission of the SIB1 signal in response to determining that the duration of transmission of the SIB1 signal exceeds a threshold.

[0061] In step 410, normal cell 404 sends wake-up signal configuration information about NES cell 406 to UE 402. For example, normal cell 404 may include the wake-up signal configuration information about NES cell 406 in system information (e.g., SIB1 or any other SIB) broadcast from normal cell 404. In step 412, UE 402 performs RRM measurements. For example, UE 402 may measure the quality of signals received from the serving cell (normal cell 404) and neighboring cells (e.g., NES cell 406). The signal quality may include at least one of the following: reference signal received power (RSRP), reference signal received quality (RSRQ), signal-to-noise ratio (SNR), or signal-to-interreference-plus-noise ratio (SINR). In step 414, UE 402 receives one or more SSBs from NES cell 406. Each of the one or more SSBs may include the ID of the corresponding one in NES cell 406. When UE 402 performs a routine RRM measurement, it can decode the SSB received from NES cell 406 to obtain the cell's PCI. UE 402 then selects at least one NES cell. For example, UE 402 can select the at least one NES cell based on a comparison between the PCI obtained from the decoded SSB and the PCI carried in the wake-up signal configuration for the NES cell received from normal cell 404.

[0062] In step 416, UE 402 determines whether the conditions for triggering wake-up signal transmission for NES cell 406 are met. In some embodiments, UE 402 may determine whether the wake-up signal triggering conditions are met based on RRM measurements for both normal cell 404 and NES cell 406. For example, UE 402 may determine that the wake-up signal triggering conditions are met when the RSRP and / or SINR measurements from normal cell 404 are below a threshold. UE 402 may also determine that the wake-up signal triggering conditions are met when the RSRP and / or SINR measurements from NES cell 406 are above a threshold. In some embodiments, service state may also be used to determine the wake-up signal triggering conditions. In response to determining that the conditions for triggering wake-up signal transmission are not met, UE 402 executes the procedure at step 412. On the other hand, in response to determining that the conditions for triggering wake-up signal transmission are met, in step 418, UE 402 performs wake-up signal transmission for NES cell 406. For example, if the triggering conditions of NES 406 are met, UE 402 can send a wake-up signal to a designated wake-up signal resource, carrying other information such as the PCI of at least one selected NES cell, an enable indication, and the selected NES behavior. The wake-up signal resource may include time and / or frequency resources specified for the wake-up signal transmission. The enable indication may instruct the selected at least one NES cell to begin SIB1 transmission.

[0063] In some embodiments, UE 402 may transmit a wake-up signal with additional information via the physical random access channel (PRACH). In this case, the additional information can be indicated using a PRACH preamble. For example, for the selected NES action, different PRACH preambles (e.g., different preamble sequences) can be configured for termination by repetition, termination by duration, and termination by UE, allowing NES cell 406 to determine the specific NES action selected by UE 402 based on the PRACH preamble. Similarly, PCI information can also be indicated by the PRACH preamble configuration. Since the wake-up signal's PRACH is intended to trigger SIB1 transmission from NES cell 406 rather than initiate random access, in some embodiments, the wake-up signal is distinguished from PRACH message 1 by time-frequency resources and / or preamble resources. For example, the wake-up signal's PRACH may use time and / or frequency resources different from conventional PRACH time-frequency resources. In some embodiments, UE 402 can send a wake-up signal on conventional PRACH resources, and NES cell 406 can distinguish the wake-up signal from random access by using the PRACH preamble sequence.

[0064] In step 420, based on the PCI indicated by the wake-up signal, at least one of the NES cells 406 with the same PCI can be woken up to transmit SIB1. In step 422, UE 402 camps on the at least one NES cell based on the received SIB1. In step 424, UE 402 determines whether the NES action indicated by the wake-up signal is terminated by the UE. If the NES action is not terminated by the UE, UE 402 does not transmit any additional wake-up signal, and the SIB1 transmission from NES cell 406 can be terminated by NES cell 406 based on the repetition or duration of the SIB1 transmission. On the other hand, if the NES action is terminated by the UE, in step 426, UE 402 transmits an additional wake-up signal for the at least one NES cell 406. The additional wake-up signal transmission may carry (e.g., via a PRACH preamble sequence) a shutdown indication indicating that the at least one NES cell can terminate SIB1 transmission. The additional wake-up signal transmission may also carry the PCI of the selected at least one NES cell.

[0065] Figure 5 This is a schematic diagram illustrating a wake-up signal transmission process 500 consistent with some embodiments of this disclosure. (See reference) Figure 5UE 502 can be an RRC idle / inactive UE. UE 502 camps on normal cell 504. NES cell 506 represents one or more cells adjacent to normal cell 504 and in NES state. In step 508, normal cell 504 and NES cell 506 exchange cell information using backhaul signaling. For example, base stations in normal cell 504 and NES cell 506 can perform backhaul signaling using the Xn interface on the base station. For example, NES cell 506 can send one or more identifiers (e.g., PCI), NES indication, supported NES behaviors, and specific wake-up signal configuration resource locations for NES cell 506. The NES indication can indicate that the cell is in NES state. Supported NES behaviors can include, for example, whether NES cell 506 supports termination by repetition, termination by duration, or termination by UE. For example, termination by repetition can be based on repetition in transmitted signals (e.g., SIB1) or repetition in received signals. NES cell 506 can determine termination based on a comparison of a determined repetition value with a threshold repetition value. For example, NES cell 506 can decide to terminate the transmission of the SIB1 signal in response to determining that the repeated transmission of the SIB1 signal exceeds a threshold. Termination by duration can be based on the duration of transmission of a type of signal (e.g., SIB1). NES cell 506 can determine termination based on a comparison of a determined duration value with a threshold. For example, NES cell 506 can decide to terminate the transmission of the SIB1 signal in response to determining that the duration of transmission of the SIB1 signal exceeds a threshold.

[0066] In step 510, normal cell 504 sends wake-up signal configuration information about normal cell 504 to UE 502. For example, normal cell 504 may include the wake-up signal configuration information about normal cell 504 in system information (e.g., SIB1 or any other SIB) broadcast from normal cell 504. In step 512, UE 502 performs RRM measurements. For example, UE 502 may measure the quality of signals received from the serving cell (normal cell 504) and neighboring cells (e.g., NES cell 506). The signal quality may include at least one of the following: RSRP, RSRQ, SNR, or SINR. In step 514, UE 502 receives one or more SSBs from NES cell 506. Each of the one or more SSBs may include the ID of the corresponding one in NES cell 506. When UE 502 performs routine RRM measurements, it may decode the SSBs received from NES cell 506 to obtain the cell's PCI. UE 502 then selects at least one NES cell based on the PCI obtained from the decoded SSBs.

[0067] In step 516, UE 502 determines whether the conditions for triggering a wake-up signal transmission for NES cell 506 are met. In some embodiments, UE 502 may determine whether the wake-up signal triggering conditions are met based on RRM measurements for both normal cell 504 and NES cell 506. For example, UE 502 may determine that the wake-up signal triggering conditions are met when the RSRP and / or SINR measurement from normal cell 504 is below a threshold. UE 502 may also determine that the triggering conditions are met when the RSRP and / or SINR measurement from NES cell 506 is above a threshold. In some embodiments, service state may also be used to determine the wake-up signal triggering conditions. In response to determining that the conditions for triggering the wake-up signal transmission are not met, UE 502 executes the procedure at step 512. On the other hand, in response to determining that the conditions for triggering the wake-up signal transmission are met, in step 518, UE 502 sends a wake-up signal for at least one selected NES cell to normal cell 504. UE 502 can send a wake-up signal using designated wake-up signal resources, carrying other information such as the PCI of at least one selected NES cell, an enable instruction, and the selected NES behavior. The enable instruction can instruct the selected at least one NES cell to start SIB1 transmission.

[0068] In some embodiments, UE 502 may send a wake-up signal with additional information to normal cell 504 via PRACH. In this case, the additional information may be indicated using a PRACH preamble. For example, in some embodiments, different PRACH preambles (e.g., different preamble sequences) are configured for different NES actions (by repeated termination, by duration, and by UE termination) for the selected NES action. Similarly, PCI information may also be carried by the PRACH preamble configuration. Since the PRACH of the wake-up signal is intended to trigger SIB1 transmission from at least one selected NES cell, rather than to initiate random access, in some embodiments, the wake-up signal is distinguished from PRACH message 1 by time-frequency resources and / or preamble resources. For example, the PRACH of the wake-up signal may use time and / or frequency resources different from conventional PRACH time-frequency resources. In some embodiments, UE 502 may send the wake-up signal on conventional PRACH resources, and normal cell 504 may distinguish the wake-up signal from random access by the PRACH preamble sequence.

[0069] In step 520, normal cell 504 sends a wake-up signal corresponding to the wake-up signal received from UE 502 to at least one selected NES cell. The wake-up signal transmitted from normal cell 504 carries (e.g., via a PRACH preamble sequence) information about the PCI, enable indication, and selected NES behavior carried in the wake-up signal received from UE 502. In step 522, based on the PCI carried by the wake-up signal transmitted from normal cell 504, the at least one NES cell with the same PCI can be woken up to transmit SIB1. In step 524, UE 502 camps on the at least one NES cell based on the received SIB1. In step 526, UE 502 determines whether the NES behavior carried by the wake-up signal sent to normal cell 504 is terminated by the UE. If the NES behavior is not terminated by the UE, UE 502 does not transmit any additional WUS, and the SIB1 transmission from the at least one NES cell can be terminated by the NES cell based on the repetition or duration of the SIB1 transmission. On the other hand, if the NES behavior is terminated by the UE, then in step 528, the UE 502 transmits an additional wake-up signal for the at least one NES cell to the normal cell 504. The additional wake-up signal transmission may carry a shutdown indication indicating that the at least one NES cell can terminate SIB1 transmission. The additional wake-up signal transmission may also carry the PCI of the selected at least one NES cell. Upon receiving the additional wake-up signal, in step 530, the normal cell 504 transmits a wake-up signal corresponding to the additional wake-up signal received from the UE 502. The wake-up signal transmitted from the normal cell 504 may include a PCI and a shutdown indication indicating that the at least one NES cell can terminate SIB1 transmission. Upon receiving the additional wake-up signal from the normal cell 504, the at least one NES cell can terminate SIB1 transmission.

[0070] Figure 6 This is a flowchart illustrating a method 600 for communication using a node, consistent with some embodiments of this disclosure. The node may be a UE, such as... Figure 4 UE 402. This node can camp on the first cell, such as... Figure 4 The normal 404 error in the community.

[0071] refer to Figure 6 Method 600 includes step 602: receiving wake-up signal configuration information from a first cell for a target cell in one or more second cells, the wake-up signal configuration information including the ID of the target cell and one or more termination indicators supported by the target cell. The one or more second cells may be one or more NES cells, such as... Figure 4 NES cell 406. The target cell ID can be the target cell's PCI. For example, such as Figure 4 As shown, UE 402 receives wake-up signal configuration information from normal cell 404 for at least one of one or more NES cells designated as NES cell 406. One or more termination indicators supported by the target cell may include at least one of the following: termination by repetition, termination by duration, or termination by the UE. In some embodiments, the wake-up signal configuration information is received via one or more SIB signals (e.g., SIB1) broadcast from the first cell.

[0072] Method 600 includes step 604: receiving one or more SSBs from the one or more second cells, each of the one or more SSBs including the ID of a corresponding one of the one or more second cells. For example, as Figure 4 As shown, when performing a regular RRM measurement, UE 402 can receive SSBs from NES cell 406 and decode one or more received SSBs to obtain one or more IDs corresponding to that one or more NES cell.

[0073] Method 600 includes step 606: determining whether conditions for triggering a wake-up signal for a target cell are met. Determining whether conditions for triggering a wake-up signal for a target cell are met may include identifying the target cell based on one or more IDs corresponding to the one or more second cells and the ID of the target cell received from the first cell. In some embodiments, determining whether conditions for triggering a wake-up signal for a target cell are met may further include comparing one or more signal quality parameters (e.g., RSRP, SINR) of the first and second cells with corresponding thresholds. For example, in some embodiments, conditions for triggering a wake-up signal for a target cell are met when the RSRP and / or SINR of the first cell is below a threshold and the RSRP and / or SINR of the target cell is above a threshold. In some embodiments, service status may also be used to determine whether conditions for triggering a wake-up signal for a target cell are met.

[0074] Method 600 includes step 608: transmitting a wake-up signal in response to determining that a condition for triggering a wake-up signal is met. In some embodiments, wake-up signal configuration information for a target cell may include one or more wake-up signal resources specified for the target cell, and the transmission of the wake-up signal is based on the one or more wake-up signal resources specified for the target cell. The one or more wake-up signal resources specified for the target cell may include at least one of the following: a channel type to be used for wake-up signal transmission, a time resource for wake-up signal transmission, or a frequency resource for wake-up signal transmission. In some embodiments, the wake-up signal may be transmitted to the target cell via PRACH.

[0075] Method 600 includes step 610: receiving a response signal from the target cell as a response to a wake-up signal. In some embodiments, the response signal may include an SIB1 signal. Transmission of the response signal from the target cell may be terminated based on determining that the termination indicator indicated by the wake-up signal is terminated by repeated termination or by termination of duration.

[0076] Method 600 includes step 612: initiating a connection with the target cell based on a response signal received from the target cell. For example, as... Figure 4 As shown, UE 402 can camp on one of the target NES cells.

[0077] In some embodiments, the wake-up signal is a first wake-up signal, and method 600 may further include: in response to determining that a termination indicator indicated by the first wake-up signal is a termination of the UE, transmitting a second wake-up signal to the target cell. The second wake-up signal indicates a shutdown indication that instructs the target cell to stop transmitting response signals. The second wake-up signal may be transmitted to the target cell via PRACH.

[0078] Figure 7 This is a flowchart illustrating a method 700 for a second node in a second cell during communication, consistent with some embodiments of this disclosure. The second cell may be an NES cell.

[0079] refer to Figure 7 Method 700 includes step 702: transmitting wake-up signal configuration information for a second cell to a first cell, the wake-up signal configuration information including the ID of the second cell and one or more termination indicators supported by the second cell. The second node may include at least one of the following: a base station, a roadside unit, a repeater, a transponder, a wireless router, a controller, an access point, or a UE within the second cell. The first cell may include at least one anchored cell. The one or more termination indicators may include at least one of the following: termination by repetition, termination by duration, or termination by the UE.

[0080] Method 700 includes step 704: transmitting an SSB to a first node, the SSB including the ID of the second cell. The first node may include at least one UE camped on the first cell. For example, as... Figure 4 As shown, NES cell 406 transmits SSB to UE 402, where SSB includes the ID of NES cell 406.

[0081] Method 700 includes step 706: receiving a wake-up signal from the first node. For example, as... Figure 4 As shown, NES cell 406 receives a wake-up signal from UE 402. The wake-up signal can be received via PRACH. Based on the wake-up signal, the second node can be woken up to transmit a response signal.

[0082] Method 700 includes step 708: transmitting a response signal to a first node as a response to a wake-up signal. In some embodiments, the response signal may include an SIB1 signal. In some embodiments, method 700 may further include: terminating the transmission of the response signal to the first node based on determining that a termination indicator indicated by the wake-up signal includes termination by repetition or termination by duration. For example, a second node may terminate the transmission of the response signal based on a comparison of the number of repetitions or the duration of the transmission with a corresponding threshold. If the number of repetitions or the duration of the transmission exceeds the corresponding threshold, the second node may terminate the transmission of the response signal.

[0083] In some embodiments, the wake-up signal is a first wake-up signal, and method 700 may further include: waiting for a second wake-up signal from a first node in response to determining that the first wake-up signal indicates termination by the UE. In this case, the first node, rather than the second node, decides when to terminate the response signal transmission. The method may further include: receiving the second wake-up signal from the first node; and terminating the transmission of the response signal in response to determining that the second wake-up signal indicates a shutdown indication. The second wake-up signal may be received via PRACH.

[0084] Figure 8 This is a flowchart illustrating a method 800 for a node to communicate, consistent with some embodiments of this disclosure. The node may be a UE, such as... Figure 5 UE 502. This node can camp on the first cell, such as... Figure 5 504 in the residential area.

[0085] refer to Figure 8 Method 800 includes step 802: receiving wake-up signal configuration information for the first cell and one or more termination indicators supported by one or more second cells from a first cell. The one or more second cells may be one or more NES cells, such as... Figure 5 NES cell 506. For example, such as Figure 5 As shown, UE 502 receives wake-up signal configuration information for normal cell 504 from normal cell 504. One or more termination indicators supported by the target cell may include at least one of the following: termination by repetition, termination by duration, or termination by the UE. In some embodiments, the wake-up signal configuration information is received via one or more SIB signals (e.g., SIB1) broadcast from the first cell. In some embodiments, the wake-up signal configuration information may also include the ID of the target cell in the one or more second cells.

[0086] Method 800 includes step 804: receiving one or more SSBs from the one or more second cells, each of the one or more SSBs including the ID of a corresponding one of the one or more second cells. For example, as Figure 5 As shown, when performing a regular RRM measurement, UE 502 can receive SSBs from NES cell 506 and decode one or more received SSBs to obtain one or more IDs corresponding to that one or more NES cell.

[0087] Method 800 includes step 806: determining whether conditions for triggering a wake-up signal for a target cell in one or more second cells are met. In some embodiments, determining whether conditions for triggering a wake-up signal for a target cell are met may further include comparing one or more signal quality parameters (e.g., RSRP, SINR) of the first cell and the second cell with corresponding thresholds. For example, in some embodiments, conditions for triggering a wake-up signal for a target cell are met when the RSRP and / or SINR of the first cell is below a threshold and the RSRP and / or SINR of the target cell is above a threshold. In some embodiments, service status may also be used to determine whether conditions for triggering a wake-up signal for a target cell are met.

[0088] Method 800 includes step 808: in response to determining that a condition for triggering a wake-up signal is met, transmitting a wake-up signal for a target cell to a first cell. Upon receiving the wake-up signal for the target cell, the first cell may transmit a wake-up signal corresponding to the wake-up signal received from the first node to the target cell. The wake-up signal for the target cell may be transmitted to the first cell via PRACH.

[0089] Method 800 includes step 810: receiving a response signal from a target cell as a response to a wake-up signal. In some embodiments, the response signal may include an SIB1 signal. In some embodiments, the transmission of the response signal from the target cell may be terminated based on determining that the termination indicator indicated by the wake-up signal is terminated by repeated termination or by termination of duration. In some embodiments, the termination indicator may be indicated by a preamble (e.g., a preamble sequence) of PRACH transmitted from the first cell.

[0090] Method 800 includes step 812: initiating a connection with the target cell based on a response signal received from the target cell. For example, as... Figure 5 As shown, UE 502 can camp on one of the target NES cells.

[0091] In some embodiments, the wake-up signal is a first wake-up signal, and method 800 may further include: in response to determining that a termination indicator indicated by the first wake-up signal is a termination of the UE, transmitting a second wake-up signal to a first cell. The second wake-up signal indicates a shutdown indication that instructs the target cell to stop transmitting response signals. The second wake-up signal may be transmitted to the first cell via PRACH.

[0092] Figure 9 This is a flowchart illustrating a method 900 for a second node in a second cell during communication, consistent with some embodiments of this disclosure. The second cell may be an NES cell, such as... Figure 5 The NES cell 506. The second node can be a cell node used for NES cells.

[0093] refer to Figure 9 Method 900 includes step 902: transmitting wake-up signal configuration information for a second cell to a first cell, the wake-up signal configuration information including the ID of the second cell and one or more termination indicators supported by the second cell. The second node may include at least one of the following: a base station, a roadside unit, a repeater, a transponder, a wireless router, a controller, an access point, or a UE within the second cell. The first cell may include at least one anchored cell, such as... Figure 5 Normal cell 504. The one or more termination indicators may include at least one of the following: termination by repetition, termination by duration, or termination by the UE.

[0094] Method 900 includes step 904: transmitting an SSB to a first node, the SSB including the ID of the second cell. The first node may include at least one UE camped on the first cell. For example, as... Figure 5 As shown, NES cell 506 transmits SSB to UE 502, where SSB includes the ID of NES cell 506.

[0095] Method 900 includes step 906: receiving a wake-up signal from a first cell. For example, such as... Figure 5 As shown, NES cell 506 receives a wake-up signal from normal cell 504. The wake-up signal can be received via the Xn interface between NES cell 506 and normal cell 504. Based on the wake-up signal, the second node can be woken up to transmit a response signal.

[0096] Method 900 includes step 908: transmitting a response signal to a first node as a response to a wake-up signal. In some embodiments, the response signal may include an SIB1 signal. In some embodiments, method 900 may further include: terminating the transmission of the response signal to the first node based on determining that a termination indicator indicated by the wake-up signal includes termination by repetition or termination by duration. For example, a second node may terminate the transmission of the response signal based on a comparison of the number of repetitions or the duration of the transmission with a corresponding threshold. If the number of repetitions or the duration of the transmission exceeds the corresponding threshold, the second node may terminate the transmission of the response signal.

[0097] In some embodiments, the wake-up signal is a first wake-up signal, and method 900 may further include: waiting for a second wake-up signal from a first cell in response to determining that the first wake-up signal indicates termination by the UE. In this case, the decision to terminate the response signal transmission is made by a first node (via the first cell) rather than a second node. The method may further include: receiving the second wake-up signal from the first cell; and terminating the transmission of the response signal in response to determining that the second wake-up signal indicates a shutdown indication. The second wake-up signal may be received via an Xn interface between the first cell and the second cell.

[0098] Figure 10 This is a flowchart illustrating a method 1000 for a cell node in a first cell during communication, consistent with some embodiments of this disclosure. The first cell may be an anchored cell, such as... Figure 5 A normal cell 504. A cell node may include at least one of the following: a base station, a roadside unit, a repeater, a transponder, a wireless router, a controller, an access point, or a UE in a second cell.

[0099] refer to Figure 10 Method 1000 includes step 1002: receiving from at least one second cell the ID of the at least one second cell and one or more termination indicators supported by the at least one second cell. The at least one second cell may include at least one NES cell. The one or more termination indicators may include at least one of the following: termination by repetition, termination by duration, or termination by the UE. For example, such as... Figure 5 As shown, normal cell 504 receives the NES cell ID and one or more termination indicators supported by the NES cell from NES cell 506.

[0100] Method 1000 includes step 1004: transmitting wake-up signal configuration information for a first cell to a first node, the wake-up signal configuration information including one or more termination indicators supported by the at least one second cell. The first node may include at least one UE camped on the first cell. For example, such as Figure 5As shown, normal cell 504 transmits wake-up signal configuration information for normal cell 504 to UE 502.

[0101] Method 1000 includes step 1006: receiving a wake-up signal for the at least one second cell from a first node. For example, such as Figure 5 As shown, normal cell 504 receives a wake-up signal for NES cell 506 from UE 502. The wake-up signal can be received via PRACH. The preamble of PRACH can indicate other information, such as the ID of the at least one second cell, NES behavior, and an initiation indication for the second cell to initiate response signal (e.g., SIB) transmission.

[0102] Method 1000 includes step 1008: transmitting a wake-up signal corresponding to a wake-up signal received from a first node to at least one second cell. Based on the wake-up signal transmitted from the cell node, at least one second cell can be woken up to transmit a response signal to the first node.

[0103] In some embodiments, the wake-up signal is a first wake-up signal, and method 1000 may further include: in response to determining that the first wake-up signal received from the first node indicates termination by the UE, waiting for a second wake-up signal from the first node for the at least one second cell. In this case, the decision to terminate the response signal transmission is made by the first node (via the first cell) rather than the second cell. The method may further include: receiving the second wake-up signal from the first node; and transmitting a wake-up signal corresponding to the second wake-up signal received from the first node to the at least one second cell. The wake-up signal corresponding to the second wake-up signal may be transmitted via PRACH.

[0104] Figure 11 This is a block diagram of node 1100, consistent with some embodiments of this disclosure. In some embodiments, node 1100 may be a node (e.g., a UE) that sends a wake-up signal to an NES cell. For example, node 1100 may be... Figure 4 UE 402 or Figure 5 UE 502. In some embodiments, node 1100 may be a cell node of an NES cell, which receives a wake-up signal from the UE and sends a response signal (e.g., SIB1). For example, node 1100 may be... Figure 4 NES cell 406 or Figure 5 NES cell 506 (“cell node” and “cell” are used interchangeably). In some embodiments, node 1100 may be a cell node anchored to a cell. For example, node 1100 may be… Figure 4 Normal 404 error in residential areas or Figure 5 Normal cell 504. In some embodiments, node 1100 may be executing Figure 6Method 600 Figure 7 Method 700 Figure 8 Method 800 Figure 9 Method 900 or Figure 10 The node of method 1000. Node 1100 may take any form, including but not limited to a computer, a system including at least one computer, a vehicle, a component installed in a vehicle, a portable computer, a wireless terminal including a mobile phone, a wireless handheld device or wireless personal device, or any other form.

[0105] refer to Figure 11 Node 1100 may include antenna 1102, which can be used to transmit electromagnetic signals to or receive electromagnetic signals from one or more other nodes. Antenna 1102 may include one or more antenna elements and can implement different input / output antenna configurations, such as multiple-input multiple-output (MIMO), multiple-input single-output (MISO), and single-input multiple-output (SIMO) configurations. In some embodiments, antenna 1102 may include multiple (e.g., tens or hundreds) antenna elements and can implement multi-antenna functions, such as beamforming. In some embodiments, antenna 1102 is a single antenna.

[0106] Node 1100 may include a transceiver 1104 coupled to antenna 1102. Transceiver 1104 may be a wireless transceiver at node 1100 and may communicate bidirectionally with one or more other nodes. For example, transceiver 1104 may receive or transmit wireless signals to a base station via downlink / uplink communication. Transceiver 1104 may also receive or transmit wireless signals to another node unit via sidelink communication. Transceiver 1104 may include a modem to modulate packets and provide modulated packets to antenna 1102 for transmission, and to demodulate packets received from antenna 1102.

[0107] Node 1100 may include memory 1106. Memory 1106 may be any type of computer-readable storage medium, including volatile or non-volatile storage devices or combinations thereof. Computer-readable storage media include, but are not limited to, non-transitory computer storage media. Non-transitory storage media can be accessed by general-purpose or special-purpose computers. Examples of non-transitory storage media include, but are not limited to, portable computer floppy disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), electrically erasable programmable ROM (EEPROM), digital versatile disks (DVDs), flash memory, compact disk (CD) ROMs or other optical disk storage, magnetic disk storage, or other magnetic storage devices. Non-transitory media can be used to carry or store desired program code components (e.g., instructions and / or data structures) and can be accessed by general-purpose or special-purpose computers or general-purpose or special-purpose processors. In some examples, software / program code may be transmitted from a remote source (e.g., a website, server, etc.) using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave. In such examples, coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave fall within the definition of media. Memory 1106 may also be a cloud-based remote storage device. Combinations of the above examples also fall within the scope of computer-readable media.

[0108] Memory 1106 may store information related to the identity (e.g., PCI) of node 1100 and signals and / or data received by antenna 1102. Memory 1106 may also store post-processed signals and / or data. Memory 1106 may also store computer-readable program instructions, mathematical models, and algorithms for signal processing in receiver 1104 of node 1100 and computation in processor 1108. Memory 1106 may also store computer-readable program instructions for execution by processor 1108 to operate node 1100 to perform the various functions described in this disclosure. Memory may also store wake-up signal configuration information, supported NES behaviors, etc. In some examples, memory 1106 may include a basic input / output system (BIOS) that controls basic hardware or software operations, such as interaction with peripheral components or devices.

[0109] The computer-readable program instructions disclosed herein may be assembler instructions, instruction-set-architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, status setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​and conventional procedural programming languages. The computer-readable program instructions may execute entirely as a standalone software package on a computing device, or may execute partly on a first computing device and partly on a second computing device located remotely from the first computing device. In the latter case, the second remote computing device may be connected to the first computing device via any type of network, including a local area network (LAN) or a wide area network (WAN).

[0110] Processor 1108 may include hardware devices with processing capabilities. Processor 1108 may include at least one of the following: a general-purpose processor, a digital signal processor (DSP), a central processing unit (CPU), a graphics processing unit (GPU), a microcontroller, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or other programmable logic device. Examples of general-purpose processors include, but are not limited to, microprocessors, any conventional processor, a controller, a microcontroller, or a state machine. In some embodiments, processor 1108 may be implemented using a combination of devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration). Processor 1108 may receive downlink or sidelink signals from transceiver 1104 and further process the signals. Processor 1108 may also receive data packets from transceiver 1104 and further process the packets. In some embodiments, processor 1108 may be configured to operate memory using a memory controller. In some embodiments, the memory controller may be integrated into the processor 1108. The processor 1108 may be configured to execute computer-readable instructions stored in memory (e.g., memory 1106) to cause the node 1100 to perform various functions.

[0111] Node 1100 may include a Global Positioning System (GPS) 1110. GPS 1110 can be used to provide location-based services or other services based on the geographic location of node 1100 or synchronization between nodes. GPS 1110 can receive GNSS signals from a single or multiple satellites via antenna 1102 and provide the geographic location of node 1100 (e.g., the coordinates of node 1100). In some embodiments, GPS 1110 is omitted. In some embodiments, a timer is included.

[0112] Node 1100 may include an input / output (I / O) device 1112, which can be used to transmit the results of signal processing and computation to a user or another device. I / O device 1112 may include a user interface, including a display and input devices, to transmit user commands to processor 1108. The display may be configured to display signal reception status at node 1100, data stored in memory 1106, signal processing status, and computation results, etc. The display may include, but is not limited to, a cathode ray tube (CRT), a liquid crystal display (LCD), a light-emitting diode (LED), a gas plasma display, a touchscreen, or other image projection devices for displaying information to the user. Input devices may be any type of computer hardware device used to receive data and control signals from the user. Input devices may include, but are not limited to, a keyboard, mouse, scanner, digital camera, joystick, trackball, cursor arrow keys, touchscreen monitor, or audio / video command device, etc.

[0113] Node 1100 may also include machine interface 1114, such as an electrical bus connecting transceiver 1104, memory 1106, processor 1108, GPS 1110 and I / O device 1112.

[0114] In some embodiments, node 1100 may be a node for communication. Processor 1108 may be configured or programmed to execute instructions stored in memory 1106 to: receive wake-up signal configuration information for a target cell in one or more second cells from a first cell, the wake-up signal configuration information including an identifier (ID) of the target cell and one or more termination indicators supported by the target cell; receive one or more synchronization signal blocks (SSBs) from the one or more second cells, each of the one or more SSBs including the ID of a corresponding one in the one or more second cells; determine whether a condition for triggering a wake-up signal for the target cell is met; transmit a wake-up signal in response to determining that the condition for triggering the wake-up signal is met; receive a response signal from the target cell as a response to the wake-up signal; and initiate a connection with the target cell based on the response signal received from the target cell.

[0115] In some embodiments, node 1100 may be a second node for communication. Processor 1108 may be configured or programmed to execute instructions stored in memory 1106 to: transmit wake-up signal configuration information for a second cell to a first cell, the wake-up signal configuration information including the identifier (ID) of the second cell and one or more termination indicators supported by the second cell; transmit a synchronization signal block (SSB) to the first node, the SSB including the ID of the second cell; receive a wake-up signal from the first node; and transmit a response signal to the first node as a response to the wake-up signal.

[0116] In some embodiments, node 1100 may be a node for communication. Processor 1108 may be configured or programmed to execute instructions stored in memory 1106 to: receive wake-up signal configuration information for the first cell and one or more termination indicators supported by one or more second cells from the first cell; receive one or more synchronization signal blocks (SSBs) from the one or more second cells, each of the one or more SSBs including an identifier (ID) of a corresponding one of the one or more second cells; determine whether a condition for triggering a wake-up signal for a target cell in the one or more second cells is met; in response to determining that the condition for triggering the wake-up signal is met, transmit a wake-up signal for the target cell to the first cell; receive a response signal from the target cell as a response to the wake-up signal; and initiate a connection with the target cell based on the response signal received from the target cell.

[0117] In some embodiments, node 1100 may be a second node for a second cell in communication. Processor 1108 may be configured or programmed to execute instructions stored in memory 1106 to: transmit wake-up signal configuration information for the second cell to a first cell, the wake-up signal configuration information including an identifier (ID) of the second cell and one or more termination indicators supported by the second cell; transmit a synchronization signal block (SSB) to the first node, the SSB including the ID of the second cell; receive a wake-up signal from the first cell; and transmit a response signal to the first node as a response to the wake-up signal.

[0118] In some embodiments, node 1100 may be a cell node for a first cell in communication. Processor 1108 may be configured or programmed to execute instructions stored in memory 1106 to: receive from at least one second cell an identifier (ID) of the at least one second cell and one or more termination indicators supported by the at least one second cell; transmit to the first node wake-up signal configuration information for the first cell, the wake-up signal configuration information including the one or more termination indicators supported by the at least one second cell; receive from the first node a wake-up signal for the at least one second cell; and transmit to the at least one second cell a wake-up signal corresponding to the wake-up signal received from the first node.

[0119] The methods described in this disclosure can be applied to any wireless communication system that utilizes a wake-up signal, such as, but not limited to, terrestrial and non-terrestrial mobile radio communication systems, such as 3GPP LTE and / or NR and / or any future radio access technologies, where a wake-up signal conversion is expected and / or required.

[0120] While the examples in this disclosure relate to 3GPP technologies, the embodiments described herein can be used with non-3GPP technologies, such as IEEE and its 802.11 variants, Wi-Fi, WiMAX, etc.

[0121] As used in this disclosure, the term "or" is used in a list of items to indicate an inclusive list. A list of items may be prefixed with phrases such as "at least one" or "one or more." For example, a list of at least one of A, B, or C includes A or B or C or AB (i.e., A and B) or AC or BC or ABC (i.e., A and B and C). Furthermore, as used in this disclosure, the phrase "based on" before a list of conditions should not be interpreted as "based only on" that set of conditions, but rather as "at least partially based on" that set of conditions. For example, a result described as "based on condition A" may be based on both condition A and condition B without departing from the scope of this disclosure.

[0122] In this specification, the terms "comprising," "including," or "containing" are used interchangeably, have the same meaning, and should be interpreted as inclusive and open-ended. The terms "comprising," "including," or "containing" may be used before a list of elements and indicate that at least all elements listed in the list are present, but other elements not listed may also be present. For example, if A includes B and C, then both {B, C} and {B, C, D} are within the scope of A.

[0123] This disclosure describes exemplary configurations in conjunction with the accompanying drawings, which do not represent all examples that can be implemented or all configurations within the scope of this disclosure. The term "exemplary" should not be construed as "preferred" or "advantageous compared to other examples," but rather as "illustration, instance, or example." By reading this disclosure, including the description of embodiments and accompanying drawings, those skilled in the art will understand that the techniques disclosed herein can be implemented using alternative embodiments. Those skilled in the art will understand that the embodiments described herein or certain features of the embodiments can be combined to obtain other embodiments for practicing the techniques described in this disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but should be given the widest scope consistent with the principles and novel features disclosed herein.

[0124] The flowcharts and block diagrams in the accompanying drawings illustrate examples of the architecture, functionality, and operation of possible implementations of systems, methods, and apparatuses according to various embodiments. It should be noted that in some alternative implementations, the functions shown in the blocks may occur in a different order than that shown in the drawings. For example, two blocks shown consecutively may actually be executed substantially simultaneously, or these blocks may sometimes be executed in reverse order, depending on the functions involved. Similarly, additional steps may be included in such methods, and certain steps may be omitted or combined in methods consistent with the various embodiments.

[0125] It should be understood that the described embodiments are not mutually exclusive, and elements, components, materials, or steps described in conjunction with an example embodiment may be combined with or eliminated from other embodiments in a suitable manner to achieve desired design goals.

[0126] References to “some embodiments” or “some exemplary embodiments” herein mean that a particular feature, structure, or characteristic described in connection with that embodiment may be included in at least one embodiment. The phrases “one embodiment,” “some embodiments,” or “another embodiment” appearing throughout this disclosure do not necessarily refer to the same embodiment, and individual or alternative embodiments are not necessarily mutually exclusive with other embodiments.

[0127] Furthermore, the articles “a” and “an” used in this disclosure and the appended claims should generally be interpreted as meaning “one or more”, unless otherwise stated or clearly indicated from the context as the singular form.

[0128] Unless explicitly stated otherwise, each value and range should be interpreted as approximate, as if the words “about” or “approximately” preceded the value or range.

[0129] Although the elements in the following method claims (if any) are set in a particular order, these elements are not necessarily intended to be limited to being set in that particular order unless the statement of the claims otherwise implies a particular order for implementing some or all of these elements.

[0130] It should be understood that, for clarity, certain features of this disclosure described in the context of individual embodiments may also be provided in combination in a single embodiment. Conversely, for brevity, various features of this specification described in the context of a single embodiment may also be provided individually or in any suitable sub-combination or as appropriate in any other embodiment described in this specification. Certain features described in the context of various embodiments are not essential features of those embodiments unless indicated otherwise.

[0131] It will also be understood that those skilled in the art can make various modifications, substitutions, and variations to the details, materials, and arrangements of the components described and shown in order to explain the nature of the described embodiments, without departing from the scope. Therefore, the following claims cover all such substitutions, modifications, and variations that fall within the terminology of the claims.

[0132] Clause 1: Nodes used for communication, said nodes comprising: Memory, which stores instructions; and A processor configured to execute the instructions stored in the memory to: Receive wake-up signal configuration information for a target cell in one or more second cells from a first cell, the wake-up signal configuration information including the identifier (ID) of the target cell and one or more termination indicators supported by the target cell; Receive one or more synchronization signal blocks (SSBs) from the one or more second cells, each of the one or more SSBs including the ID of a corresponding one of the one or more second cells; Determine whether the conditions for triggering a wake-up signal for the target cell are met; In response to determining that the condition for triggering the wake-up signal is met, the wake-up signal is transmitted; Receive a response signal from the target cell as a response to the wake-up signal; and Based on the response signal received from the target cell, a connection is initiated with the target cell.

[0133] Clause 2: The node as described in Clause 1, wherein the node includes at least one user equipment (UE) residing on the first cell.

[0134] Clause 3: The node as described in Clause 1, wherein the one or more second cells include one or more Network Energy Saving (NES) cells.

[0135] Clause 4: The node as described in Clause 1, wherein the first cell includes at least one anchored cell.

[0136] Clause 5: The node as described in Clause 1, wherein the target cell is woken up to transmit the response signal based on the wake-up signal.

[0137] Clause 6: The node according to Clause 1, wherein the processor is configured to execute the instructions stored in the memory to: Performing Radio Resource Management (RRM) measurements; and Decode the one or more SSBs received from the one or more second cells to obtain one or more IDs corresponding to the one or more second cells.

[0138] Clause 7: The node described in Clause 1, wherein determining whether the conditions for triggering a wake-up signal for the target cell are met includes: identifying the target cell based on one or more IDs corresponding to the one or more second cells and the ID of the target cell received from the first cell.

[0139] Clause 8: A node pursuant to Clause 1, wherein the wake-up signal configuration information for the target cell includes one or more wake-up signal resources specified for the target cell, and the processor is configured to execute the instructions stored in the memory to: The wake-up signal is transmitted based on the one or more wake-up signal resources specified for the target cell.

[0140] Clause 9: The node as described in Clause 8, wherein the one or more wake-up signal resources specified for the target cell include at least one of the following: a channel type to be used for the transmission of the wake-up signal, a time resource for the transmission of the wake-up signal, or a frequency resource for the transmission of the wake-up signal.

[0141] Clause 10: The node as described in Clause 1, wherein the response signal includes a System Information Block Type 1 (SIB1) signal.

[0142] Clause 11: The node as described in Clause 1, wherein the wake-up signal is transmitted to the target cell via the Physical Random Access Channel (PRACH).

[0143] Clause 12: A node as described in Clause 1, wherein the one or more termination indicators include at least one of the following: termination by repetition, termination by duration, or termination by the UE.

[0144] Clause 13: The node as described in Clause 12, wherein the transmission of the response signal from the target cell is terminated based on determining that the termination indicator indicated by the wake-up signal is either the termination by repetition or the termination by duration.

[0145] Clause 14: The node pursuant to Clause 12, wherein the wake-up signal is a first wake-up signal, and the processor is configured to execute the instructions stored in the memory to: In response to determining that the termination indicator indicated by the first wake-up signal is a termination by the UE, a second wake-up signal is transmitted to the target cell. The second wake-up signal indicates a shutdown instruction, which instructs the target cell to stop transmitting the response signal.

[0146] Clause 15: The node as described in Clause 14, wherein the second wake-up signal is transmitted to the target cell via PRACH.

[0147] Clause 16: The node as described in Clause 11, wherein the wake-up signal configuration information is received via one or more SIB signals broadcast from the first cell.

[0148] Clause 17: A second node for use in communication with a second cell, the second node comprising: Memory, which stores instructions; and A processor configured to execute the instructions stored in the memory to: Transmit wake-up signal configuration information for the second cell to the first cell, the wake-up signal configuration information including the identifier (ID) of the second cell and one or more termination indicators supported by the second cell; Transmit a synchronization signal block (SSB) to the first node, the SSB including the ID of the second cell; Receive a wake-up signal from the first node; and A response signal is transmitted to the first node as a response to the wake-up signal.

[0149] Clause 18: The second node as described in Clause 17, wherein the second cell includes at least one Network Energy Saving (NES) cell.

[0150] Clause 19: The second node as described in Clause 17, wherein the first cell includes at least one anchored cell.

[0151] Clause 20: The second node as described in Clause 17, wherein the second node includes at least one of the following: a base station, a roadside unit, a repeater, a transponder, a wireless router, a controller, an access point, or a user equipment (UE) within the second cell.

[0152] Clause 21: The second node as described in Clause 17, wherein the first node includes at least one UE residing in the first cell.

[0153] Clause 22: The second node as described in Clause 17, wherein the response signal includes a System Information Block Type 1 (SIB1) signal.

[0154] Clause 23: The second node as described in Clause 17, wherein the second node is woken up to transmit the response signal based on the wake-up signal.

[0155] Clause 24: The second node as described in Clause 17, wherein the one or more termination indicators include at least one of the following: termination by repetition, termination by duration, or termination by the UE.

[0156] Clause 25: The second node as described in Clause 24, wherein the processor is configured to execute the instructions stored in the memory to: Based on the determination that the termination indicator indicated by the wake-up signal includes either termination by repetition or termination by duration, the transmission of the response signal to the first node is terminated.

[0157] Clause 26: The second node as described in Clause 24, wherein the wake-up signal is a first wake-up signal, and the processor is configured to execute the instructions stored in the memory to: In response to determining that the first wake-up signal indicates the termination of the UE, wait for a second wake-up signal from the first node.

[0158] Clause 27: The second node as described in Clause 26, wherein the processor is configured to execute the instructions stored in the memory to: Receive the second wake-up signal from the first node; and In response to determining that the second wake-up signal indicates a shutdown indication, the transmission of the response signal is terminated.

[0159] Clause 28: The second node as described in Clause 17, wherein the wake-up signal is received via the Physical Random Access Channel (PRACH).

[0160] Clause 29: The second node as described in Clause 27, wherein the second wake-up signal is received via PRACH.

[0161] Clause 30: Nodes used for communication, said nodes comprising: Memory, which stores instructions; and A processor configured to execute the instructions stored in the memory to: Receive wake-up signal configuration information for the first cell and one or more termination indicators supported by one or more second cells from the first cell; One or more synchronization signal blocks (SSBs) are received from the one or more second cells, each of the one or more SSBs including an identifier (ID) of a corresponding one of the one or more second cells; Determine whether the conditions for triggering a wake-up signal for a target cell in one or more of the second cells are met; In response to determining that the condition for triggering the wake-up signal is met, the wake-up signal for the target cell is transmitted to the first cell; Receive a response signal from the target cell as a response to the wake-up signal; and Based on the response signal received from the target cell, a connection is initiated with the target cell.

[0162] Clause 31: A node as described in Clause 30, wherein the node includes at least one user equipment (UE) residing on the first cell.

[0163] Clause 32: The node as described in Clause 30, wherein the one or more second cells include one or more Network Energy Saving (NES) cells.

[0164] Clause 33: The node as described in Clause 30, wherein the first cell includes at least one anchored cell.

[0165] Clause 34: A node according to Clause 30, wherein the target cell is woken up to transmit the response signal based on the wake-up signal.

[0166] Clause 35: A node pursuant to Clause 30, wherein the processor is configured to execute the instructions stored in the memory to: Performing Radio Resource Management (RRM) measurements; and Decode the one or more SSBs received from the one or more second cells to obtain one or more IDs corresponding to the one or more second cells.

[0167] Clause 36: The node as described in Clause 30, wherein the response signal includes a System Information Block Type 1 (SIB1) signal.

[0168] Clause 37: The node as described in Clause 30, wherein the wake-up signal for the target cell is transmitted to the first cell via the Physical Random Access Channel (PRACH).

[0169] Clause 38: A node pursuant to Clause 30, wherein the one or more termination indicators include at least one of the following: termination by repetition, termination by duration, or termination by the UE.

[0170] Clause 39: The node as described in Clause 30, wherein, based on the wake-up signal, the transmission of the response signal from the target cell is terminated.

[0171] Clause 40: The node pursuant to Clause 38, wherein the wake-up signal is a first wake-up signal, and the processor is configured to execute the instructions stored in the memory to: In response to determining that the termination indicator indicated by the first wake-up signal is the termination by the UE, a second wake-up signal is transmitted to the first cell. The second wake-up signal indicates a shutdown instruction, which instructs the target cell to stop transmitting the response signal.

[0172] Clause 41: The node as described in Clause 40, wherein the second wake-up signal is transmitted to the first cell via PRACH.

[0173] Clause 42: The node as described in Clause 30, wherein the wake-up signal configuration information for the first cell is received from the first cell via one or more SIB signals broadcast from the first cell.

[0174] Clause 43: A second node for use in communication with a second cell, the second node comprising: Memory, which stores instructions; and A processor configured to execute the instructions stored in the memory to: Transmit wake-up signal configuration information for the second cell to the first cell, the wake-up signal configuration information including the identifier (ID) of the second cell and one or more termination indicators supported by the second cell; Transmit a synchronization signal block (SSB) to the first node, the SSB including the ID of the second cell; Receive a wake-up signal from the first cell; and A response signal is transmitted to the first node as a response to the wake-up signal.

[0175] Clause 44: The second node as described in Clause 43, wherein the second cell includes at least one Network Energy Saving (NES) cell.

[0176] Clause 45: The second node as described in Clause 43, wherein the first cell includes at least one anchored cell.

[0177] Clause 46: The second node as described in Clause 43, wherein the second node includes at least one of the following: a base station, a roadside unit, a repeater, a transponder, a wireless router, a controller, an access point, or a user equipment (UE) within the second cell.

[0178] Clause 47: The second node as described in Clause 43, wherein the first node includes at least one UE residing in the first cell.

[0179] Clause 48: The second node as described in Clause 43, wherein the response signal includes a System Information Block Type 1 (SIB1) signal.

[0180] Clause 49: The second node as described in Clause 43, wherein the second node is awakened to transmit the response signal based on the wake-up signal.

[0181] Clause 50: The second node as described in Clause 43, wherein the one or more termination indicators include at least one of the following: termination by repetition, termination by duration, or termination by the UE.

[0182] Clause 51: The second node according to Clause 50, wherein the processor is configured to execute the instructions stored in the memory to: Based on the determination that the termination indicator indicated by the wake-up signal includes either termination by repetition or termination by duration, the transmission of the response signal to the first node is terminated.

[0183] Clause 52: The second node as described in Clause 50, wherein the wake-up signal is a first wake-up signal, and the processor is configured to execute the instructions stored in the memory to: In response to determining that the first wake-up signal indicates the termination of the UE, wait for a second wake-up signal from the first cell.

[0184] Clause 53: The second node as described in Clause 52, wherein the processor is configured to execute the instructions stored in the memory to: Receive the second wake-up signal from the first cell; and In response to determining that the second wake-up signal indicates a shutdown indication, the transmission of the response signal is terminated.

[0185] Clause 54: The second node as described in Clause 43, wherein the wake-up signal is received via the Xn interface between the first cell and the second cell.

[0186] Clause 55: The second node as described in Clause 53, wherein the second wake-up signal is received via the Xn interface between the first cell and the second cell.

[0187] Clause 56: A cell node for a first cell in communication, said cell node comprising: Memory, which stores instructions; and A processor configured to execute the instructions stored in the memory to: Receive the identifier (ID) of the at least one second cell and one or more termination indicators supported by the at least one second cell from the at least one second cell; Transmit wake-up signal configuration information for the first cell to the first node, the wake-up signal configuration information including one or more termination indicators supported by the at least one second cell; Receive a wake-up signal for the at least one second cell from the first node; and Transmit a wake-up signal corresponding to the wake-up signal received from the first node to the at least one second cell.

[0188] Clause 57: Cell node as described in Clause 56, wherein the at least one second cell includes at least one Network Energy Saving (NES) cell.

[0189] Clause 58: Cell node as described in Clause 56, wherein the first cell includes at least one anchored cell.

[0190] Clause 59: A cell node as described in Clause 56, wherein the cell node includes at least one of the following: a base station, a roadside unit, a repeater, a transponder, a wireless router, a controller, an access point, or a user equipment (UE) within the first cell.

[0191] Clause 60: A cell node as described in Clause 56, wherein the first node includes at least one UE residing in the first cell.

[0192] Clause 61: A cell node as described in Clause 56, wherein the at least one second cell is woken up to transmit a response signal to the first node based on the wake-up signal received from the cell node.

[0193] Clause 62: Cell node as described in Clause 56, wherein the one or more termination indicators include at least one of the following: termination by repetition, termination by duration, or termination by UE.

[0194] Clause 63: The cell node according to Clause 62, wherein the wake-up signal received from the first node is a first wake-up signal, and the processor is configured to execute the instructions stored in the memory to: In response to determining that the first wake-up signal received from the first node indicates the termination of the UE, wait for a second wake-up signal from the first node for the at least one second cell.

[0195] Clause 64: The cell node according to Clause 63, wherein the processor is configured to execute the instructions stored in the memory to: Receive the second wake-up signal from the first node; and Transmit a wake-up signal corresponding to the second wake-up signal received from the first node to the at least one second cell.

[0196] Clause 65: Cell node as described in Clause 56, wherein the wake-up signal from the first node is received via the Physical Random Access Channel (PRACH).

[0197] Clause 66: The cell node as described in Clause 63, wherein the second wake-up signal from the first node is received via PRACH.

[0198] Clause 67: Cell node as described in Clause 56, wherein the wake-up signal configuration information further includes the ID of the at least one second cell.

[0199] Clause 68: A method for a node to communicate, the method comprising: Receive wake-up signal configuration information for a target cell in one or more second cells from a first cell, the wake-up signal configuration information including the identifier (ID) of the target cell and one or more termination indicators supported by the target cell; Receive one or more synchronization signal blocks (SSBs) from the one or more second cells, each of the one or more SSBs including the ID of a corresponding one of the one or more second cells; Determine whether the conditions for triggering a wake-up signal for the target cell are met; In response to determining that the condition for triggering the wake-up signal is met, the wake-up signal is transmitted; Receive a response signal from the target cell as a response to the wake-up signal; and Based on the response signal received from the target cell, a connection is initiated with the target cell.

[0200] Clause 69: The method according to Clause 68, wherein the node includes at least one user equipment (UE) residing on the first cell.

[0201] Clause 70: The method described in Clause 68, wherein the one or more second cells include one or more Network Energy Saving (NES) cells.

[0202] Clause 71: The method according to Clause 68, wherein the first cell includes at least one anchored cell.

[0203] Clause 72: The method according to Clause 68, wherein the target cell is woken up to transmit the response signal based on the wake-up signal.

[0204] Clause 73: The method described in accordance with Clause 68, wherein the method further comprises: Performing Radio Resource Management (RRM) measurements; and Decode the one or more SSBs received from the one or more second cells to obtain one or more IDs corresponding to the one or more second cells.

[0205] Clause 74: The method according to Clause 68, wherein determining whether the conditions for triggering a wake-up signal for the target cell are met includes: identifying the target cell based on one or more IDs corresponding to the one or more second cells and the ID of the target cell received from the first cell.

[0206] Clause 75: The method according to Clause 68, wherein the wake-up signal configuration information for the target cell includes one or more wake-up signal resources specified for the target cell, and the method further includes: The wake-up signal is transmitted based on the one or more wake-up signal resources specified for the target cell.

[0207] Clause 76: The method according to Clause 75, wherein the one or more wake-up signal resources specified for the target cell include at least one of the following: a channel type to be used for the transmission of the wake-up signal, a time resource for the transmission of the wake-up signal, or a frequency resource for the transmission of the wake-up signal.

[0208] Clause 77: The method according to Clause 68, wherein the response signal includes a System Information Block Type 1 (SIB1) signal.

[0209] Clause 78: The method according to Clause 68, wherein the wake-up signal is transmitted to the target cell via a physical random access channel (PRACH).

[0210] Clause 79: The method according to Clause 68, wherein the one or more termination indicators include at least one of: termination by repetition, termination by duration, or termination by the UE.

[0211] Clause 80: The method according to Clause 79, wherein the transmission of the response signal from the target cell is terminated based on determining that the termination indicator indicated by the wake-up signal is either the termination by repetition or the termination by duration.

[0212] Clause 81: The method according to Clause 79, wherein the wake-up signal is a first wake-up signal, and the method further comprises: In response to determining that the termination indicator indicated by the first wake-up signal is a termination by the UE, a second wake-up signal is transmitted to the target cell. The second wake-up signal indicates a shutdown instruction, which instructs the target cell to stop transmitting the response signal.

[0213] Clause 82: The method according to Clause 81, wherein the second wake-up signal is transmitted to the target cell via PRACH.

[0214] Clause 83: The method according to Clause 78, wherein the wake-up signal configuration information is received via one or more SIB signals broadcast from the first cell.

[0215] Clause 84: A method for a second node in a second cell during communication, the method comprising: Transmit wake-up signal configuration information for the second cell to the first cell, the wake-up signal configuration information including the identifier (ID) of the second cell and one or more termination indicators supported by the second cell; Transmit a synchronization signal block (SSB) to the first node, the SSB including the ID of the second cell; Receive a wake-up signal from the first node; and A response signal is transmitted to the first node as a response to the wake-up signal.

[0216] Clause 85: The method described in Clause 84, wherein the second cell includes at least one Network Energy Saving (NES) cell.

[0217] Clause 86: The method according to Clause 84, wherein the first cell includes at least one anchored cell.

[0218] Clause 87: The method according to Clause 84, wherein the second node includes at least one of the following: a base station, a roadside unit, a repeater, a transponder, a wireless router, a controller, an access point, or a user equipment (UE) within the second cell.

[0219] Clause 88: The method according to Clause 84, wherein the first node includes at least one UE residing in the first cell.

[0220] Clause 89: The method according to Clause 84, wherein the response signal includes a System Information Block Type 1 (SIB1) signal.

[0221] Clause 90: The method according to Clause 84, wherein the second node is woken up to transmit the response signal based on the wake-up signal.

[0222] Clause 91: The method according to Clause 84, wherein the one or more termination indicators include at least one of: termination by repetition, termination by duration, or termination by the UE.

[0223] Clause 92: The method according to Clause 91, wherein the method further comprises: Based on the determination that the termination indicator indicated by the wake-up signal includes either termination by repetition or termination by duration, the transmission of the response signal to the first node is terminated.

[0224] Clause 93: The method according to Clause 91, wherein the wake-up signal is a first wake-up signal, and the method further comprises: In response to determining that the first wake-up signal indicates the termination of the UE, wait for a second wake-up signal from the first node.

[0225] Clause 94: The method according to Clause 93, wherein the method further comprises: Receive the second wake-up signal from the first node; and In response to determining that the second wake-up signal indicates a shutdown indication, the transmission of the response signal is terminated.

[0226] Clause 95: The method according to Clause 84, wherein the wake-up signal is received via a physical random access channel (PRACH).

[0227] Clause 96: The method according to Clause 94, wherein the second wake-up signal is received via PRACH.

[0228] Clause 97: A method for a node to communicate, the method comprising: Receive wake-up signal configuration information for the first cell and one or more termination indicators supported by one or more second cells from the first cell; One or more synchronization signal blocks (SSBs) are received from the one or more second cells, each of the one or more SSBs including an identifier (ID) of a corresponding one of the one or more second cells; Determine whether the conditions for triggering a wake-up signal for a target cell in one or more of the second cells are met; In response to determining that the condition for triggering the wake-up signal is met, the wake-up signal for the target cell is transmitted to the first cell; Receive a response signal from the target cell as a response to the wake-up signal; and Based on the response signal received from the target cell, a connection is initiated with the target cell.

[0229] Clause 98: The method according to Clause 97, wherein the node includes at least one user equipment (UE) residing on the first cell.

[0230] Clause 99: The method described in Clause 97, wherein the one or more second cells include one or more Network Energy Saving (NES) cells.

[0231] Clause 100: The method according to Clause 97, wherein the first cell includes at least one anchored cell.

[0232] Clause 101: The method according to Clause 97, wherein the target cell is woken up to transmit the response signal based on the wake-up signal.

[0233] Clause 102: The method according to Clause 97, wherein the method further comprises: Performing Radio Resource Management (RRM) measurements; and Decode the one or more SSBs received from the one or more second cells to obtain one or more IDs corresponding to the one or more second cells.

[0234] Clause 103: The method according to Clause 97, wherein the response signal includes a System Information Block Type 1 (SIB1) signal.

[0235] Clause 104: The method according to Clause 97, wherein the wake-up signal for the target cell is transmitted to the first cell via a physical random access channel (PRACH).

[0236] Clause 105: The method according to Clause 97, wherein the one or more termination indicators include at least one of: termination by repetition, termination by duration, or termination by the UE.

[0237] Clause 106: The method according to Clause 97, wherein, based on the wake-up signal, the transmission of the response signal from the target cell is terminated.

[0238] Clause 107: The method according to Clause 105, wherein the wake-up signal is a first wake-up signal, and the method further comprises: In response to determining that the termination indicator indicated by the first wake-up signal is the termination by the UE, a second wake-up signal is transmitted to the first cell. The second wake-up signal indicates a shutdown instruction, which instructs the target cell to stop transmitting the response signal.

[0239] Clause 108: The method according to Clause 107, wherein the second wake-up signal is transmitted to the first cell via PRACH.

[0240] Clause 109: The method according to Clause 97, wherein the wake-up signal configuration information for the first cell is received from the first cell via one or more SIB signals broadcast from the first cell.

[0241] Clause 110: A method for a second node in a second cell during communication, the method comprising: Transmit wake-up signal configuration information for the second cell to the first cell, the wake-up signal configuration information including the identifier (ID) of the second cell and one or more termination indicators supported by the second cell; Transmit a synchronization signal block (SSB) to the first node, the SSB including the ID of the second cell; Receive a wake-up signal from the first cell; and A response signal is transmitted to the first node as a response to the wake-up signal.

[0242] Clause 111: The method according to Clause 110, wherein the second cell includes at least one Network Energy Saving (NES) cell.

[0243] Clause 112: The method according to Clause 110, wherein the first cell includes at least one anchored cell.

[0244] Clause 113: The method according to Clause 110, wherein the second node includes at least one of the following: a base station, a roadside unit, a repeater, a transponder, a wireless router, a controller, an access point, or a user equipment (UE) within the second cell.

[0245] Clause 114: The method according to Clause 110, wherein the first node includes at least one UE residing in the first cell.

[0246] Clause 115: The method according to Clause 110, wherein the response signal includes a System Information Block Type 1 (SIB1) signal.

[0247] Clause 116: The method according to Clause 110, wherein the second node is woken up to transmit the response signal based on the wake-up signal.

[0248] Clause 117: The method according to Clause 110, wherein the one or more termination indicators include at least one of: termination by repetition, termination by duration, or termination by the UE.

[0249] Clause 118: The method according to Clause 117, wherein the method further comprises: Based on the determination that the termination indicator indicated by the wake-up signal includes either termination by repetition or termination by duration, the transmission of the response signal to the first node is terminated.

[0250] Clause 119: The method according to Clause 117, wherein the wake-up signal is a first wake-up signal, and the method further comprises: In response to determining that the first wake-up signal indicates the termination of the UE, wait for a second wake-up signal from the first cell.

[0251] Clause 120: The method according to Clause 119, wherein the method further comprises: Receive the second wake-up signal from the first cell; and In response to determining that the second wake-up signal indicates a shutdown indication, the transmission of the response signal is terminated.

[0252] Clause 121: The method according to Clause 110, wherein the wake-up signal is received via the Xn interface between the first cell and the second cell.

[0253] Clause 122: The method according to Clause 120, wherein the second wake-up signal is received via the Xn interface between the first cell and the second cell.

[0254] Clause 123: A method for a cell node in a first cell during communication, the method comprising: Receive the identifier (ID) of the at least one second cell and one or more termination indicators supported by the at least one second cell from the at least one second cell; Transmit wake-up signal configuration information for the first cell to the first node, the wake-up signal configuration information including one or more termination indicators supported by the at least one second cell; Receive a wake-up signal for the at least one second cell from the first node; and Transmit a wake-up signal corresponding to the wake-up signal received from the first node to the at least one second cell.

[0255] Clause 124: The method according to Clause 123, wherein the at least one second cell includes at least one Network Energy Saving (NES) cell.

[0256] Clause 125: The method according to Clause 123, wherein the first cell includes at least one anchored cell.

[0257] Clause 126: The method according to Clause 123, wherein the cell node includes at least one of the following: a base station, a roadside unit, a repeater, a transponder, a wireless router, a controller, an access point, or a user equipment (UE) within the first cell.

[0258] Clause 127: The method according to Clause 123, wherein the first node includes at least one UE residing in the first cell.

[0259] Clause 128: The method according to Clause 123, wherein the at least one second cell is woken up to transmit a response signal to the first node based on the wake-up signal received from the cell node.

[0260] Clause 129: The method according to Clause 123, wherein the one or more termination indicators include at least one of: termination by repetition, termination by duration, or termination by the UE.

[0261] Clause 130: The method according to Clause 129, wherein the wake-up signal received from the first node is a first wake-up signal, and the method further comprises: In response to determining that the first wake-up signal received from the first node indicates the termination of the UE, wait for a second wake-up signal from the first node for the at least one second cell.

[0262] Clause 131: The method described pursuant to Clause 130 further includes: Receive the second wake-up signal from the first node; and Transmit a wake-up signal corresponding to the second wake-up signal received from the first node to the at least one second cell.

[0263] Clause 132: The method according to Clause 123, wherein the wake-up signal from the first node is received via a Physical Random Access Channel (PRACH).

[0264] Clause 133: The method according to Clause 130, wherein the second wake-up signal from the first node is received via PRACH.

[0265] Clause 134: The method according to Clause 123, wherein the wake-up signal configuration information further includes the ID of the at least one second cell.

[0266] Clause 135: A non-transitory computer-readable medium storing instructions executable by one or more processors of a node for communication to perform a method comprising: Receive wake-up signal configuration information for a target cell in one or more second cells from a first cell, the wake-up signal configuration information including the identifier (ID) of the target cell and one or more termination indicators supported by the target cell; Receive one or more synchronization signal blocks (SSBs) from the one or more second cells, each of the one or more SSBs including the ID of a corresponding one of the one or more second cells; Determine whether the conditions for triggering a wake-up signal for the target cell are met; In response to determining that the condition for triggering the wake-up signal is met, the wake-up signal is transmitted; Receive a response signal from the target cell as a response to the wake-up signal; and Based on the response signal received from the target cell, a connection is initiated with the target cell.

[0267] Clause 136: A non-transitory computer-readable medium storing instructions executable by one or more processors of a second node in a second cell for communication, to perform a method comprising: Transmit wake-up signal configuration information for the second cell to the first cell, the wake-up signal configuration information including the identifier (ID) of the second cell and one or more termination indicators supported by the second cell; Transmit a synchronization signal block (SSB) to the first node, the SSB including the ID of the second cell; Receive a wake-up signal from the first node; and A response signal is transmitted to the first node as a response to the wake-up signal.

[0268] Clause 137: A non-transitory computer-readable medium storing instructions executable by one or more processors of a node for communication to perform a method comprising: Receive wake-up signal configuration information for the first cell and one or more termination indicators supported by one or more second cells from the first cell; One or more synchronization signal blocks (SSBs) are received from the one or more second cells, each of the one or more SSBs including an identifier (ID) of a corresponding one of the one or more second cells; Determine whether the conditions for triggering a wake-up signal for a target cell in one or more of the second cells are met; In response to determining that the condition for triggering the wake-up signal is met, the wake-up signal for the target cell is transmitted to the first cell; Receive a response signal from the target cell as a response to the wake-up signal; and Based on the response signal received from the target cell, a connection is initiated with the target cell.

[0269] Clause 138: A non-transitory computer-readable medium storing instructions executable by one or more processors of a second node in a second cell for communication, to perform a method comprising: Transmit wake-up signal configuration information for the second cell to the first cell, the wake-up signal configuration information including the identifier (ID) of the second cell and one or more termination indicators supported by the second cell; Transmit a synchronization signal block (SSB) to the first node, the SSB including the ID of the second cell; Receive a wake-up signal from the first cell; and A response signal is transmitted to the first node as a response to the wake-up signal.

[0270] Clause 139: A non-transitory computer-readable medium storing instructions executable by one or more processors of a cell node in a first cell for communication, to perform a method comprising: Receive the identifier (ID) of the at least one second cell and one or more termination indicators supported by the at least one second cell from the at least one second cell; Transmit wake-up signal configuration information for the first cell to the first node, the wake-up signal configuration information including one or more termination indicators supported by the at least one second cell; Receive a wake-up signal for the at least one second cell from the first node; and Transmit a wake-up signal corresponding to the wake-up signal received from the first node to the at least one second cell.

Claims

1. A node for communication, the node comprising: A memory that stores instructions; as well as A processor configured to execute the instructions stored in the memory to: Receive wake-up signal configuration information for a target cell in one or more second cells from a first cell, the wake-up signal configuration information including the identifier (ID) of the target cell and one or more termination indicators supported by the target cell; Receive one or more synchronization signal blocks (SSBs) from the one or more second cells, each of the one or more SSBs including the ID of a corresponding one of the one or more second cells; Determine whether the conditions for triggering a wake-up signal for the target cell are met; In response to determining that the condition for triggering the wake-up signal is met, the wake-up signal is transmitted; Receive a response signal from the target cell as a response to the wake-up signal; as well as Based on the response signal received from the target cell, a connection is initiated with the target cell.

2. The node according to claim 1, wherein, The processor is configured to execute the instructions stored in the memory to: Perform Radio Resource Management (RRM) measurements; as well as Decode the one or more SSBs received from the one or more second cells to obtain one or more IDs corresponding to the one or more second cells.

3. The node according to claim 1, wherein, Determining whether the conditions for triggering a wake-up signal for the target cell are met includes: identifying the target cell based on one or more IDs corresponding to the one or more second cells and the ID of the target cell received from the first cell.

4. The node according to claim 1, wherein, The one or more termination indicators include at least one of the following: termination by repetition, termination by duration, or termination by the UE.

5. The node according to claim 4, wherein, The wake-up signal is a first wake-up signal, and the processor is configured to execute the instructions stored in the memory to: In response to determining that the termination indicator indicated by the first wake-up signal is a termination by the UE, a second wake-up signal is transmitted to the target cell. The second wake-up signal indicates a shutdown instruction, which instructs the target cell to stop transmitting the response signal.

6. A second node for use in communication in a second cell, the second node comprising: A memory that stores instructions; as well as A processor configured to execute the instructions stored in the memory to: Transmit wake-up signal configuration information for the second cell to the first cell, the wake-up signal configuration information including the identifier (ID) of the second cell and one or more termination indicators supported by the second cell; Transmit a synchronization signal block (SSB) to the first node, the SSB including the ID of the second cell; Receive a wake-up signal from the first node; as well as A response signal is transmitted to the first node as a response to the wake-up signal.

7. The second node according to claim 6, wherein, The one or more termination indicators include at least one of the following: termination by repetition, termination by duration, or termination by the UE.

8. The second node according to claim 7, wherein, The wake-up signal is a first wake-up signal, and the processor is configured to execute the instructions stored in the memory to: In response to determining that the first wake-up signal indicates the termination of the UE, wait for a second wake-up signal from the first node.

9. A node for communication, said node comprising: A memory that stores instructions; as well as A processor configured to execute the instructions stored in the memory to: Receive wake-up signal configuration information for the first cell and one or more termination indicators supported by one or more second cells from the first cell; One or more synchronization signal blocks (SSBs) are received from the one or more second cells, each of the one or more SSBs including an identifier (ID) of a corresponding one of the one or more second cells; Determine whether the conditions for triggering a wake-up signal for a target cell in one or more of the second cells are met; In response to determining that the condition for triggering the wake-up signal is met, the wake-up signal for the target cell is transmitted to the first cell; Receive a response signal from the target cell as a response to the wake-up signal; as well as Based on the response signal received from the target cell, a connection is initiated with the target cell.

10. The node according to claim 9, wherein, The processor is configured to execute the instructions stored in the memory to: Perform Radio Resource Management (RRM) measurements; as well as Decode the one or more SSBs received from the one or more second cells to obtain one or more IDs corresponding to the one or more second cells.

11. The node according to claim 9, wherein, The one or more termination indicators include at least one of the following: termination by repetition, termination by duration, or termination by the UE.

12. The node according to claim 11, wherein, The wake-up signal is a first wake-up signal, and the processor is configured to execute the instructions stored in the memory to: In response to determining that the termination indicator indicated by the first wake-up signal is the termination by the UE, a second wake-up signal is transmitted to the first cell. The second wake-up signal indicates a shutdown instruction, which instructs the target cell to stop transmitting the response signal.

13. The node according to claim 9, wherein, The wake-up signal configuration information for the first cell is received from the first cell via one or more SIB signals broadcast from the first cell.

14. A second node for a second cell in communication, the second node comprising: A memory that stores instructions; as well as A processor configured to execute the instructions stored in the memory to: Transmit wake-up signal configuration information for the second cell to the first cell, the wake-up signal configuration information including the identifier (ID) of the second cell and one or more termination indicators supported by the second cell; Transmit a synchronization signal block (SSB) to the first node, the SSB including the ID of the second cell; Receive a wake-up signal from the first cell; as well as A response signal is transmitted to the first node as a response to the wake-up signal.

15. The second node according to claim 14, wherein, The one or more termination indicators include at least one of the following: termination by repetition, termination by duration, or termination by the UE.

16. The second node according to claim 15, wherein, The wake-up signal is a first wake-up signal, and the processor is configured to execute the instructions stored in the memory to: In response to determining that the first wake-up signal indicates the termination of the UE, wait for a second wake-up signal from the first cell.

17. A cell node for a first cell in communication, the cell node comprising: A memory that stores instructions; as well as A processor configured to execute the instructions stored in the memory to: Receive the identifier (ID) of the at least one second cell and one or more termination indicators supported by the at least one second cell from the at least one second cell; Transmit wake-up signal configuration information for the first cell to the first node, the wake-up signal configuration information including one or more termination indicators supported by the at least one second cell; Receive a wake-up signal for the at least one second cell from the first node; as well as Transmit a wake-up signal corresponding to the wake-up signal received from the first node to the at least one second cell.

18. The cell node according to claim 17, wherein, The one or more termination indicators include at least one of the following: termination by repetition, termination by duration, or termination by the UE.

19. The cell node according to claim 18, wherein, The wake-up signal received from the first node is a first wake-up signal, and the processor is configured to execute the instructions stored in the memory to: In response to determining that the first wake-up signal received from the first node indicates the termination of the UE, wait for a second wake-up signal from the first node for the at least one second cell.

20. The cell node according to claim 19, wherein, The processor is configured to execute the instructions stored in the memory to: Receive the second wake-up signal from the first node; as well as Transmit a wake-up signal corresponding to the second wake-up signal received from the first node to the at least one second cell.

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