Minimization of paging interruption time during on-demand system information acquisition

Abstract

Systems, methods, apparatus, and computer program products for acquiring cell information, where SIB1 is transmitted on-demand from an anchor cell. A method can include receiving, by a user equipment (UE) from an anchor cell, wake up signal (WUS) configuration and system information block 1 (SIB1) timing information for a capacity cell, determining a WUS transmission condition for transmitting a WUS to the capacity cell, and in response to determining the WUS transmission condition, transmitting the WUS to the capacity cell. The method can also include the UE, after transmitting the WUS to the capacity cell, determining to acquire the SIB1 from the capacity cell, and in response to determining to acquire the SIB1 from the capacity cell, acquiring the SIB1 from the capacity cell.

Description

Technical Field

[0001] Some example embodiments may typically relate to mobile or wireless telecommunications systems such as 3GPP Long Term Evolution (LTE), 5G Radio Access Technology (RAT), New Radio (NR) access technology, 6G, and / or other communication systems. For example, some example embodiments may relate to systems and / or methods for obtaining cell information, wherein System Information Block 1 (SIB1) is transmitted from the capacity cell on demand. Background Technology

[0002] Examples of mobile or wireless telecommunications systems may include radio frequency (RF) 5GRAT, Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (UTRAN), Evolved LTE UTRAN (E-UTRAN), LTE-A Advanced, LTE-A Pro, NR access technologies and / or the MulteFire Alliance. 5G radio systems refer to next-generation (NG) radio systems and network architectures. 5G systems are typically built on 5G NR, but 5G (or NG) networks can also be built on E-UTRA radio. NR is expected to support service categories such as enhanced mobile broadband (eMBB), ultra-reliable low-latency communications (URLLC), and massive machine-type communications (mMTC). NR is expected to provide extremely wideband, ultra-robust low-latency connectivity, and massive networking to support the Internet of Things (IoT). Next-generation radio access network (NG-RAN) refers to the radio access network (RAN) used for 5G, which provides radio access for NR, LTE, and LTE-A. It should be noted that nodes that provide radio access to user equipment in 5G (e.g., similar to Node B in UTRAN or Evolved Node B (eNB) in LTE) can be called Next Generation Node B (gNB) when built on NR radio, and Next Generation eNB (NG-eNB) when built on E-UTRA radio.

[0003] Various techniques exist to minimize network energy consumption by reducing the number of transmissions from a network perspective. Since networks may experience extended periods of low load, there are opportunities for further energy savings, such as reducing the transmission of periodically active signals. For example, cells in the network can enter an energy-saving mode by implementing energy-saving measures (e.g., suspending SIB1 transmissions or enabling on-demand SIB1).

[0004] However, efficient and reliable technologies are still needed to restore cells in energy-saving mode to operational status while minimizing data communication disruptions in the network. Summary of the Invention

[0005] According to some example embodiments, an apparatus includes: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to at least: receive wake-up signal (WUS) configuration and system information block 1 (SIB1) timing information of a capacity cell from an anchor cell; determine WUS transmission conditions for transmitting the WUS to the capacity cell; and transmit the WUS to the capacity cell in response to determining the WUS transmission conditions.

[0006] According to some example embodiments, when executed by at least one processor, the instructions cause the apparatus to at least: determine the WUS transmission conditions by determining the next WUS timing of the capacity cell that does not conflict with any anchor cell paging timing of the anchor cell based on the WUS configuration as the selected WUS timing; and transmit WUS to the capacity cell during the selected WUS timing.

[0007] According to some example embodiments, when executed by at least one processor, the instructions cause the device to at least: determine that the selected WUS timing does not conflict with any anchor cell paging timing by determining that the WUS timing interval between the selected WUS timing and the anchor cell paging timing is at least a predetermined minimum WUS timing interval.

[0008] According to some example embodiments, when executed by at least one processor, the instructions cause the device to at least: determine the WUS transmission conditions by receiving a paging advance indication (PEI) from the anchor cell; and determine the WUS transmission conditions based on the PEI.

[0009] According to some example embodiments, when executed by at least one processor, the instructions cause the device to at least: determine WUS transmission conditions based on the PEI by determining an anchor cell paging timing in which the PEI indicates that no anchor cell exists during the selected WUS timing of the capacity cell.

[0010] According to some example embodiments, when executed by at least one processor, the instructions cause the device to at least: determine WUS transmission conditions based on the PEI by determining that an anchor cell paging timing, which does not involve a subgroup containing the device, exists during a selected WUS timing, indicating that an anchor cell exists.

[0011] According to some example embodiments, when executed by at least one processor, the instructions cause the apparatus to at least: determine WUS transmission conditions by determining that the measured reference signal received power (RSRP) and / or the measured reference signal received quality (RSRQ) of the anchor cell are below a predetermined minimum reference signal measurement value.

[0012] According to some example embodiments, when executed by at least one processor, the instructions cause the device to at least: determine WUS transmission conditions while residing on an anchor cell.

[0013] According to some example embodiments, when the instructions are executed by at least one processor, the apparatus also causes the device to at least: measure the capacity cell before determining the WUS transmission conditions, and determine that the capacity cell meets the cell reselection criteria and has enabled the on-demand SIB1 function.

[0014] According to some example embodiments, when executed by at least one processor, the instructions also cause the apparatus to at least: in response to determining that the capacity cell meets the cell reselection criteria and the on-demand SIB1 function is enabled, prohibit the reselection of the capacity cell until the capacity cell SIB1 is acquired.

[0015] According to some example embodiments, when executed by at least one processor, the instructions also cause the apparatus to at least: determine to obtain SIB1 from the capacity cell after transmitting WUS to the capacity cell; and obtain SIB1 from the capacity cell in response to determining that SIB1 is to be obtained from the capacity cell.

[0016] According to some example embodiments, when executed by at least one processor, the instructions also cause the apparatus to at least: determine that obtaining SIB1 from the capacity cell includes: determining that the measured reference signal received power (RSRP) and / or the measured reference signal received quality (RSRQ) of the anchor cell is lower than a predetermined minimum reference signal measurement value.

[0017] According to some example embodiments, when executed by at least one processor, the instructions cause the apparatus to at least: determine to obtain SIB1 from the capacity cell by determining the next SIB1 transmission window of the capacity cell that does not conflict with the paging timing of any anchor cell of the anchor cell based on SIB1 timing information as the selected SIB1 transmission window; and obtain SIB1 from the capacity cell during the selected SIB1 transmission window.

[0018] According to some example embodiments, when executed by at least one processor, the instructions cause the apparatus to at least: determine that the SIB1 transmission window of the capacity cell does not conflict with any anchor cell paging timing of the anchor cell by determining that the SIB1 transmission window interval between the selected SIB1 transmission window and any anchor cell paging timing is at least a predetermined minimum SIB1 transmission window interval.

[0019] According to some example embodiments, when executed by at least one processor, the instructions further cause the apparatus to at least: determine at least one anchor cell paging timing prior to a selected SIB1 transmission window after transmitting WUS to the capacity cell and before obtaining SIB1 from the capacity cell, and in response to determining that at least one anchor cell paging timing prior to the selected SIB1 transmission window, resynchronize to the anchor cell before all of the at least one anchor cell paging timings, and then resynchronize to the capacity cell after all of the at least one anchor cell paging timings and before the selected SIB1 transmission window.

[0020] According to some example embodiments, when the instructions are executed by at least one processor, the device also causes the device to at least: after obtaining SIB1 from a capacity cell, perform a cell reselection process to determine reselection to a capacity cell.

[0021] According to some example embodiments, an apparatus includes: at least one processor; and at least one memory, the at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to at least: receive wake-up signal (WUS) configuration and system information block 1 (SIB1) timing information from a capacity cell; and transmit the WUS configuration and SIB1 timing information of the capacity cell to a user equipment (UE).

[0022] According to some example embodiments, an apparatus includes: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to at least: enable the On-Demand System Information Block 1 (SIB1) function at a capacity cell; and transmit the capacity cell's wake-up signal (WUS) configuration and SIB1 timing information to the anchor cell.

[0023] According to some example embodiments, an apparatus includes: components for receiving wake-up signal (WUS) configuration and system information block 1 (SIB1) timing information of a capacity cell from an anchor cell; components for determining WUS transmission conditions for transmitting WUS to the capacity cell; and components for transmitting WUS to the capacity cell in response to determining the WUS transmission conditions.

[0024] According to some example embodiments, determining the WUS transmission conditions includes: determining the next WUS timing of the capacity cell that does not conflict with any anchor cell paging timing of the anchor cell based on the WUS configuration as the selected WUS timing; and transmitting the WUS includes transmitting the WUS to the capacity cell during the selected WUS timing.

[0025] According to some example embodiments, determining that the selected WUS timing does not conflict with any anchor cell paging timing includes: determining that the WUS timing interval between the selected WUS timing and the anchor cell paging timing is at least a predetermined minimum WUS timing interval.

[0026] According to some example embodiments, determining WUS transmission conditions includes: receiving the paging advance indication (PEI) of the anchor cell; and determining WUS transmission conditions based on the PEI.

[0027] According to some example embodiments, determining WUS transmission conditions based on PEI includes determining an anchor cell paging timing where the PEI indicates that no anchor cell exists during the selected WUS timing period of the capacity cell.

[0028] According to some example embodiments, determining WUS transmission conditions based on PEI includes determining an anchor cell paging timing that does not involve a subgroup containing devices and indicates that an anchor cell exists during the selected WUS timing.

[0029] According to some example embodiments, determining WUS transmission conditions includes determining that the measured reference signal received power (RSRP) and / or the measured reference signal received quality (RSRQ) of the anchor cell are below a predetermined minimum reference signal measurement value.

[0030] According to some example embodiments, the device is operable to determine WUS transmission conditions while the device is camped on an anchor cell.

[0031] According to some example embodiments, the apparatus further includes components for measuring capacity cells and determining that the capacity cells meet cell reselection criteria and have enabled on-demand SIB1 functionality before determining WUS transmission conditions.

[0032] According to some example embodiments, the apparatus further includes a component for prohibiting the reselection of a capacity cell until the capacity cell SIB1 is acquired in response to determining that the capacity cell meets the cell reselection criteria and the on-demand SIB1 function is enabled.

[0033] According to some example embodiments, the apparatus further includes: a component for determining, after transmitting WUS to the capacity cell, to obtain SIB1 from the capacity cell, and for obtaining SIB1 from the capacity cell in response to determining that SIB1 is obtained from the capacity cell.

[0034] According to some example embodiments, determining that SIB1 is obtained from a capacity cell includes determining that the measured reference signal received power (RSRP) and / or the measured reference signal received quality (RSRQ) of the anchor cell is lower than a predetermined minimum reference signal measurement value.

[0035] According to some example embodiments, determining to obtain SIB1 from a capacity cell includes: determining the next SIB1 transmission window of the capacity cell that does not conflict with any anchor cell paging timing of the anchor cell based on SIB1 timing information as the selected SIB1 transmission window; and obtaining SIB1 from a capacity cell includes: obtaining SIB1 from the capacity cell during the selected SIB1 transmission window.

[0036] According to some example embodiments, determining that the SIB1 transmission window of a capacity cell does not conflict with any anchor cell paging timing of an anchor cell includes: determining that the SIB1 transmission window interval between the selected SIB1 transmission window and any anchor cell paging timing is at least a predetermined minimum SIB1 transmission window interval.

[0037] According to some example embodiments, the apparatus further includes: a component for determining at least one anchor cell paging timing prior to a selected SIB1 transmission window after transmitting WUS to the capacity cell and before obtaining SIB1 from the capacity cell, and in response to determining that at least one anchor cell paging timing prior to the selected SIB1 transmission window, resynchronizing to the anchor cell before all timings in the at least one anchor cell paging timing, and then resynchronizing to the capacity cell after all timings in the at least one anchor cell paging timing and before the selected SIB1 transmission window.

[0038] According to some example embodiments, the apparatus further includes a component for performing a cell reselection process to determine reselection to a capacity cell after obtaining SIB1 from a capacity cell.

[0039] According to some example embodiments, an apparatus includes: components for receiving wake-up signal (WUS) configuration and system information block 1 (SIB1) timing information from a capacity cell; and components for transmitting the WUS configuration and SIB1 timing information of the capacity cell to a user equipment (UE).

[0040] According to some example embodiments, an apparatus includes: components for enabling the On-Demand System Information Block 1 (SIB1) function at a capacity cell; and components for transmitting the capacity cell's wake-up signal (WUS) configuration and SIB1 timing information to an anchor cell.

[0041] According to some example embodiments, SIB1 timing information defines the timing of SIB1 transmission by the capacity cell in response to receiving WUS at the capacity cell.

[0042] According to some example embodiments, SIB1 timing information defines the periodicity of SIB1 transmissions performed by a capacity cell in response to receiving a WUS at the capacity cell.

[0043] According to some example embodiments, the SIB1 timing information defines a predetermined delay between receiving WUS at the capacity cell and transmitting SIB1 at the capacity cell.

[0044] According to some example embodiments, a method includes: receiving wake-up signal (WUS) configuration and system information block 1 (SIB1) timing information of a capacity cell from an anchor cell; determining WUS transmission conditions for transmitting the WUS to the capacity cell; and transmitting the WUS to the capacity cell in response to determining the WUS transmission conditions.

[0045] According to some example embodiments, determining the WUS transmission conditions includes: determining the next WUS timing of the capacity cell that does not conflict with any anchor cell paging timing of the anchor cell based on the WUS configuration as the selected WUS timing; and transmitting WUS to the capacity cell includes transmitting WUS to the capacity cell during the selected WUS timing.

[0046] According to some example embodiments, determining that the selected WUS timing does not conflict with any anchor cell paging timing includes determining that the WUS timing interval between the selected WUS timing and the anchor cell paging timing is at least a predetermined minimum WUS timing interval.

[0047] According to some example embodiments, determining WUS transmission conditions includes: receiving the paging advance indication (PEI) of the anchor cell; and determining WUS transmission conditions based on the PEI.

[0048] According to some example embodiments, determining WUS transmission conditions based on PEI includes determining an anchor cell paging timing where the PEI indicates that no anchor cell exists during the selected WUS timing period of the capacity cell.

[0049] According to some example embodiments, determining WUS transmission conditions based on PEI includes determining an anchor cell paging timing that does not involve a subgroup containing devices and indicates that an anchor cell exists during the selected WUS timing.

[0050] According to some example embodiments, determining WUS transmission conditions includes determining that the measured reference signal received power (RSRP) and / or the measured reference signal received quality (RSRQ) of the anchor cell are below a predetermined minimum reference signal measurement value.

[0051] According to some example embodiments, the method includes: when the UE is camped on an anchor cell, the user equipment (UE) determines the WUS transmission conditions.

[0052] According to some example embodiments, the method further includes: measuring the capacity cell before determining the WUS transmission conditions, and determining that the capacity cell meets the cell reselection criteria and has enabled the on-demand SIB1 function.

[0053] According to some example embodiments, the method further includes: in response to determining that the capacity cell meets the cell reselection criteria and the on-demand SIB1 function is enabled, prohibiting the reselection of the capacity cell until the capacity cell SIB1 is obtained.

[0054] According to some example embodiments, the method further includes: after transmitting WUS to the capacity cell, determining to obtain SIB1 from the capacity cell, and obtaining SIB1 from the capacity cell in response to determining to obtain SIB1 from the capacity cell.

[0055] According to some example embodiments, determining that SIB1 is obtained from a capacity cell includes determining that the measured reference signal received power (RSRP) and / or the measured reference signal received quality (RSRQ) of the anchor cell is lower than a predetermined minimum reference signal measurement value.

[0056] According to some example embodiments, determining to obtain SIB1 from a capacity cell includes: determining the next SIB1 transmission window of the capacity cell that does not conflict with any anchor cell paging timing of the anchor cell based on SIB1 timing information as the selected SIB1 transmission window; and obtaining SIB1 from a capacity cell includes: obtaining SIB1 from the capacity cell during the selected SIB1 transmission window.

[0057] According to some example embodiments, determining that the SIB1 transmission window of a capacity cell does not conflict with any anchor cell paging timing of an anchor cell includes determining that the SIB1 transmission window interval between the selected SIB1 transmission window and any anchor cell paging timing is at least a predetermined minimum SIB1 transmission window interval.

[0058] According to some example embodiments, the method further includes: after determining the SIB1 of the capacity cell to be acquired and before acquiring the SIB1 from the capacity cell, determining at least one anchor cell paging timing prior to the selected SIB1 transmission window, and in response to determining that at least one anchor cell paging timing prior to the selected SIB1 transmission window, resynchronizing to the anchor cell before all timings in the at least one anchor cell paging timing, and then resynchronizing to the capacity cell after all timings in the at least one anchor cell paging timing and before the selected SIB1 transmission window.

[0059] According to some example embodiments, the method further includes: after obtaining SIB1 from the capacity cell, performing a cell reselection process to determine reselection to a capacity cell.

[0060] According to some example embodiments, a method includes: receiving wake-up signal (WUS) configuration and system information block 1 (SIB1) timing information from a capacity cell at an anchor cell; and transmitting the WUS configuration and SIB1 timing information of the capacity cell to a user equipment (UE).

[0061] According to some example embodiments, a method includes: enabling the On-Demand System Information Block 1 (SIB1) function at a capacity cell; and transmitting a wake-up signal (WUS) configuration and SIB1 timing information of the capacity cell to an anchor cell. According to some example embodiments, the SIB1 timing information defines the timing of the transmission of SIB1 by the capacity cell in response to receiving a WUS at the capacity cell.

[0062] According to some example embodiments, SIB1 timing information defines the periodicity of SIB1 transmissions performed by a capacity cell in response to receiving a WUS at the capacity cell.

[0063] According to some example embodiments, the SIB1 timing information defines a predetermined delay between receiving WUS at the capacity cell and transmitting SIB1 at the capacity cell.

[0064] According to some example embodiments, a non-transitory computer-readable medium stores program instructions that, when executed by a device, cause the device to perform at least any of the methods described above. Attached Figure Description

[0065] To properly understand the exemplary embodiments, reference should be made to the accompanying drawings, in which: Figure 1 An example of a UE obtaining capacity cell information via an anchor cell is shown; Figures 2 to 4 An example of a signaling diagram according to some example embodiments is shown; Figures 5 to 10 An example of a flowchart illustrating a method that can be performed by a user device according to certain example embodiments is shown; Figure 11 An example flowchart of a method that can be performed by an anchor cell according to some example embodiments is shown; Figure 12 Examples of flowcharts illustrating methods that can be performed by a capacity cell according to various example embodiments are shown; Figure 13 Examples of various network devices according to some example embodiments are shown; and Figure 14 Examples of 5G network and system architectures based on various example embodiments are shown. Detailed Implementation

[0066] It is readily understood that, as generally described and illustrated in the accompanying drawings, components of certain example embodiments may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of some example embodiments of systems, methods, apparatuses, and computer program products for minimizing lost paging messages during on-demand SIB1 of a user equipment (UE) acquiring a capacity cell is not intended to limit the scope of certain example embodiments, but rather to represent selected example embodiments.

[0067] As mentioned above, there are various techniques for minimizing network energy consumption by reducing the number of transmissions from a network perspective. Since networks may experience long periods of low load, there are opportunities to further save energy, for example, by reducing the transmission of periodic signals that are always on (e.g., System Information Block 1 (SIB1)).

[0068] As used throughout this discussion, an "anchor cell" can refer to a cell through which information about another cell can be provided to the UE. An anchor cell may be active for a longer period than the capacity cell it is anchored to. A capacity cell may have more than one anchor cell, and an anchor cell may also function as a capacity cell.

[0069] Similarly, a "capacity cell" can refer to a cell that can utilize a deeper sleep state, one of which may include suspending SIB1 transmissions and enabling on-demand SIB1. A capacity cell may require an anchor cell to assist in providing its acquisition or configuration information. As mentioned above, an anchor cell can also serve as a capacity cell, thus a given capacity cell can be used as an anchor cell for other cells.

[0070] When a cell (which may be a capacity cell) enters power-saving mode by implementing power-saving measures (e.g., suspending SIB1 transmission, enabling on-demand SIB1), the UE can determine when to acquire its SIB1 in the power-saving state of the capacity cell. To this end, the UE can cooperate with an anchor cell. The anchor cell may have a larger coverage area and / or provide the UE with information on how to access capacity cells that can enter power-saving mode and / or suspend SIB1 transmission. By using the anchor cell, the UE can learn how to acquire SIB1 for the capacity cell.

[0071] like Figure 1 As shown, the wake-up signal (WUS) configuration, SIB1 timing configuration, and other information of the capacity cell can be transmitted from the capacity cell to the anchor cell, and then obtained by the UE from the anchor cell. The UE can then use the capacity cell's WUS configuration to transmit the WUS to the capacity cell, and the capacity cell initiates SIB1 transmission upon receiving the WUS. Subsequently, the UE can obtain the capacity cell's SIB1.

[0072] However, during this process, there may be a time interval between the UE sending the WUS and the transmission of the capacity cell SIB1 and the UE acquiring the SIB1. During this interval, the UE may be unable to decode paging messages sent on the capacity cell, and may also be unable to decode paging messages sent on the anchor cell if it is not synchronized with the anchor cell. Potential factors that may increase this interval may include one or more of the following: the UE waiting for a WUS transmission opportunity, which may be infrequent because the capacity cell is in power-saving mode; the transmission of the WUS; the network decoding the WUS with a probability of decoding failure; waiting for the next SIB1 transmission opportunity; and the UE decoding the SIB1 after acquiring it.

[0073] Unsuccessful paging processes may lead to re-paging attempts over a larger geographical area; for example, more nodes may transmit paging messages, resulting in higher energy consumption (i.e., paging escalation within the tracking area). Furthermore, paging loss can degrade the end-user experience. For instance, a lost paging call in a voice call can cause the caller to experience longer call setup times.

[0074] Therefore, an efficient technology is needed to enable UEs that need to reselect to a capacity cell in an energy-saving state (including cases where on-demand SIB1 is enabled in the capacity cell) to obtain the SIB1 of the capacity cell while minimizing paging message loss.

[0075] Some of the example embodiments described herein may have various benefits and / or advantages in overcoming the disadvantages described above. For example, some example embodiments may provide efficient techniques for obtaining the SIB1 of a capacity cell in an energy-saving state, including obtaining the SIB1 of the capacity cell while minimizing lost paging messages when on-demand SIB1 is enabled in the capacity cell.

[0076] As described in more detail below, some example embodiments involve a UE camping on an anchor cell and performing cell reselection measurements. Typically, various example embodiments may involve the capacity cell transmitting, or otherwise sharing, the capacity cell's WUS configuration and SIB1 transmission information with the anchor cell. In some example embodiments, this is achieved through an XnNGRAN configuration update procedure.

[0077] In some example embodiments, the UE obtains the WUS configuration and SIB1 transmission information of the capacity cell from the anchor cell. In some embodiments, SIB1 timing information defines the timing of on-demand SIB1 (SIB1 OD) transmissions of the capacity cell (e.g., the timing of SIB1OD transmission in response to receiving WUS on the capacity cell). In different embodiments, SIB1OD may have a different transmission period than periodically always-on SIB1 transmissions. Providing the UE with SIB1OD transmission timing enables efficient capacity cell measurement and SIB1 acquisition. In some embodiments, the timing of the SIB1OD transmission window may be defined based on the timing of WUS transmissions or SSB transmissions of the capacity cell. This optional information may further indicate to the UE whether the repetition of SIB1OD will occur within the configured SI window for transmitting SIB1OD. SIB1 transmission information may also define the expected scheduling delay between WUS transmissions and the first SIB1 transmission. The UE may consider the SIB1OD transmission information to determine whether a conflict will occur between paging monitoring on the anchor cell and the on-demand SIB1 process on the capacity cell.

[0078] In some example embodiments, the UE determines whether its paging timing on the anchor cell (or, optionally, paging timing on another cell in the case of MU-SIM) conflicts with the measured WUS transmission timing on the SIB1OD capacity cell. This determination may be based, for example, on ensuring that any WUS transmission on the SIB1OD cell ends at a predefined interval before (or begins at a predefined interval after) the UE's paging timing on the anchor cell. This predefined interval can be any suitable range, and in some embodiments, it is based on one or more predefined attributes and / or characteristics of the UE, the anchor cell, the capacity cell, and other network entities and infrastructure. For example, in some embodiments, the predefined interval is based on predefined handover parameters or capabilities of the UE. In some embodiments, the predefined interval is determined by the UE itself based on co-frequency / different-frequency relationships between cells, or is specified by 3GPP / configured by the network. In some embodiments, WUS transmissions may include repetition and transmission distributed across multiple time slots (e.g., due to Time Division Duplex (TDD)).

[0079] In some example embodiments, the UE may also obtain a threshold (WUS_Threshold) from the anchor cell, which determines when the UE should prioritize transmitting WUS for SIB1OD relative to paging and obtain SIB1OD. This threshold may be based on the measured RSRP / RSRQ of the serving cell (anchor cell).

[0080] In some example embodiments, even if the cell reselection criteria are met, the UE measures the SIB1OD capacity cell and returns to the serving cell. In this case, the UE may wait until it acquires the SIB1 of the capacity cell before reselecting to that cell. In some example embodiments, the UE continues to camp on the anchor cell and treats the capacity cell as temporarily blocked until it acquires the SIB1 of the capacity cell.

[0081] In some example embodiments, the UE may transmit WUS on the capacity cell based on certain conditions. For instance, in some embodiments, even if the UE paging timing conflicts with the WUS transmission timing of the capacity cell, the UE may still transmit WUS on the capacity cell if the RSRP or RSRQ of the anchor cell is below or not above a threshold (WUS_Threshold). In some embodiments, this threshold (WUS_Threshold) for the anchor cell may be configured by the original equipment manufacturer (OEM).

[0082] In some example implementations of UE support for advance paging indication (PEI), even if a conflict is determined and the RSRP / RSRQ of the anchor cell is not lower than the configured threshold, the UE can still transmit WUS on the capacity cell when the PEI does not provide the UE with notification of the upcoming paging timing or when the PEI does not specify a subgroup containing the UE.

[0083] In some example embodiments, when the UE transmits WUS to a capacity cell, the UE may then determine whether it should return (resynchronize) to the anchor cell. In some embodiments, this determination is based on the start of the next SIB1OD transmission window of the capacity cell and the next paging timing of the anchor cell to be monitored. In some embodiments, the UE monitors the capacity cell to acquire SIB1, and if SIB1 is acquired and the cell reselection criteria are met, the UE performs cell reselection. In some embodiments, the UE employs SIB1OD timing and repetition configuration to minimize capacity cell measurements performed for searching for SIB1 and to avoid / minimize conflicts between ODSIB1 acquisition and paging timing.

[0084] Although the procedures described herein involve the acquisition of SIB1OD, with necessary modifications, these procedures can also be used to acquire other SI messages and / or MIBs of the capacity cell.

[0085] Figures 2 to 4 Example signaling diagrams are shown depicting a UE acquiring capacity cell SIB1 when the capacity cell is in power-saving mode (or sleep mode, which are used interchangeably herein) and on-demand SIB1 is enabled. The signaling diagrams show portions of the complete signaling diagrams, illustrating the disclosed techniques when these signaling diagrams are considered holistically. Specifically, Figure 2 Partial signaling diagram 200 depicting the first part of the technology is shown, and Figure 4 Partial signaling diagram 400 depicting the final part of this technology is shown. Figures 3A to 3D Partial signaling diagrams 310, 320, 330, and 340 are shown, depicting portions of the technology between partial signaling diagrams 200 and 400, wherein multiple alternative arrangements of partial signaling diagrams 310, 320, 330, and 340 are possible. According to certain example embodiments, UE 220 may be similar to UE 1320 or an instance of UE 1320, anchor cell 230 may be similar to NE 1310 or an instance of NE 1310, and capacity cell 240 may be similar to NE 1310 or an instance of NE 1310, such as... Figure 13 As shown and described below.

[0086] At Operation 201, Capacity Cell 240 can enable On-Demand SIB1 to achieve network energy saving.

[0087] At operation 202, capacity cell 240 may transmit its WUS configuration to anchor cell 230. At operation 203, capacity cell 240 may transmit its SIB1 transmission timing information to anchor cell 230. In some embodiments, operations 202 and 203 are two separate operations, while in other embodiments, operations 202 and 203 are a single operation.

[0088] At operation 204, anchor cell 230 may transmit the WUS configuration of capacity cell 240 to UE 220. At operation 205, anchor cell 230 may transmit timing information of SIB1 of capacity cell 240 to UE 220. In some embodiments, operations 204 and 205 are two separate operations, while in other embodiments, operations 204 and 205 are a single operation.

[0089] At operation 206, capacity cell 240 can enter energy-saving mode (sleep mode in some example embodiments) and activate on-demand SIB1.

[0090] At operation 207, UE220 can camp on anchor cell 230.

[0091] At operation 208, UE220 can measure capacity cell 240 and determine that capacity cell 240 has activated on-demand SIB1. UE220 can also determine that capacity cell 240 meets cell reselection criteria.

[0092] At operation 209, the UE can resynchronize to anchor cell 209.

[0093] Arrow 210 shows the complete timing diagram. Figures 3A to 3D Continue at one point.

[0094] As mentioned above, Figures 3A to 3D Partial signaling diagrams 310, 320, 330, and 340 are shown, depicting portions of the technology between partial signaling diagrams 200 and 400, wherein multiple alternative arrangements of partial signaling diagrams 310, 320, 330, and 340 are possible. Regardless of the particular alternative, arrows 311, 321, 331, and 341 indicate a continuation from a previous portion of the complete signaling diagram, and arrows 312, 322, 332, and 342 indicate a continuation from the next portion of the complete signaling diagram, as described below.

[0095] First go to Figure 3APartial signaling diagram 310 can continue from partial signaling diagram 200, as shown by arrow 311. At operation 313, UE 220 can determine, at least in part, the WUS timing of capacity cell 240 that does not conflict with any paging timing of anchor cell 230, based on the received WUS configuration of capacity cell 240. Arrow 312 shows that the complete timing diagram continues in the next part of the complete signaling diagram, which may be... Figure 4 The signaling diagram 400 is shown below. For ease of understanding, partial signaling diagram 400 will be described first, followed by a description of... Figures 3B to 3D The signaling diagrams shown are 320, 330, and 340.

[0096] Therefore, turn to Figure 4 As indicated by arrow 401, partial signaling diagram 400 continues from the preceding portion of the complete signaling diagram. In an alternative, following the immediately preceding segment, partial signaling diagram 400... Figure 3A The signaling diagram shown in Figure 310 continues.

[0097] At operation 402, UE220 may transmit WUS to capacity cell 240 at least in part based on the WUS configuration received by capacity cell 240.

[0098] At operation 403, capacity cell 240 can exit sleep mode.

[0099] At operation 404, capacity cell 240 can transmit its SIB1 to UE 220 according to the SIB1 transmission timing information, for example, by broadcasting SIB1.

[0100] At operation 405, UE220 may determine an instance of SIB1 transmission timing based at least in part on the received SIB1 timing information, which may be an SIB1 transmission window and does not conflict with any paging timing of anchor cell 230.

[0101] At operation 406, UE220 may acquire SIB1 of capacity cell 240, for example, during a previously determined SIB1 transmission window that does not conflict with any paging timing of anchor cell 230.

[0102] At operation 407, UE220 may perform a cell reselection process to reselect to capacity cell 240, at least in part, based on the received SIB1 of capacity cell 240.

[0103] As mentioned above, Figures 3A to 3DPartial signaling diagrams 310, 320, 330, and 340 are shown, depicting portions of the technology between partial signaling diagrams 200 and 400, wherein multiple alternative arrangements of partial signaling diagrams 310, 320, 330, and 340 are possible. A first such alternative has been described above. Further such alternatives will now be described.

[0104] Go to Figure 3B Partial signaling diagram 320 can continue from partial signaling diagram 200, as shown by arrow 321. At operation 323, UE 220 can determine, at least in part, that a conflict exists between the WUS timing of capacity cell 240 and the paging timing of anchor cell 230, based on the received WUS configuration of capacity cell 240. Arrow 322 shows that the complete timing diagram continues in the next part of the complete signaling diagram.

[0105] Go to Figure 3C Partial signaling diagram 330 continues from the preceding portion of the complete signaling diagram, as indicated by arrow 331. In one alternative, partial signaling diagram 330 continues from partial signaling diagram 200. In another alternative, partial signaling diagram 330 continues from partial signaling diagram 320.

[0106] At operation 333, UE220 can monitor the PEI timing on anchor cell 230.

[0107] At operation 334, UE220 may not detect a PEI during the WUS timing of capacity cell 240, or it may detect a PEI during the WUS timing of capacity cell 240 that does not indicate a subgroup containing UE220. Arrow 332 shows that the complete timing diagram continues in the next part of the complete signaling diagram, which may be as described above. Figure 4 The signaling diagram shown is part of diagram 400.

[0108] Go to Figure 3D Partial signaling diagram 340 continues from the preceding portion of the complete signaling diagram, as indicated by arrow 341. In one alternative, partial signaling diagram 330 continues from partial signaling diagram 200. In another alternative, partial signaling diagram 330 continues from partial signaling diagram 320. In yet another alternative, partial signaling diagram 330 continues from partial signaling diagram 330.

[0109] At operation 343, UE220 determines that the measured RSRP and / or RSRQ of anchor cell 230 are below a predetermined threshold. Arrow 342 indicates that the complete timing diagram continues at the next part of the complete signaling diagram, which may be as described above. Figure 4 The signaling diagram shown is part of diagram 400.

[0110] Figure 5Examples of flowcharts illustrating a method 500 that can be performed by a UE according to various example embodiments are shown, the UE being similar to Figure 13 The UE1320 shown is an instance thereof.

[0111] At step 501, according to various example embodiments, method 500 may include residing on an anchor cell, which may be similar to Figure 13 The NE1310 shown is an example of it.

[0112] At step 502, method 500 may further include receiving WUS configuration and SIB1 timing information of a capacity cell from an anchor cell, the capacity cell being similar to... Figure 13 The NE1310 shown is an example of it.

[0113] At step 503, method 500 may further include measuring capacity cells and determining that capacity cells meet cell reselection criteria.

[0114] At step 504, method 500 may further include resynchronizing to the anchor cell.

[0115] At step 505, method 500 may further include determining to transmit WUS to the capacity cell. Alternatives to this step will be described further below following the description of method 500.

[0116] At step 506, method 500 may further include resynchronizing to the capacity cell.

[0117] At step 507, method 500 may further include transmitting WUS to the capacity cell.

[0118] At step 508, method 500 may further include determining the SIB1 of the capacity cell. Alternatives to this step will be described further below following the description of method 500.

[0119] At step 509, method 500 may further include obtaining the SIB1 of the capacity cell.

[0120] At step 510, method 500 may further include determining reselection to a capacity cell.

[0121] Figures 6 to 9 A flowchart example is shown to represent a non-limiting alternative method for performing step 505 of method 500 (i.e., determining the transmission of WUS to the capacity cell).

[0122] therefore, Figure 6An alternative method 600 is shown for performing step 505 of method 500, which involves determining whether to transmit a WUS to a capacity cell. Method 600 begins at 601. At decision 602, the method determines whether the next WUS timing does not conflict with any paging timing of the anchor cell. At the branch 'Yes' 603, method 600 returns to method 500 at 604. At the branch 'No' 605, method 600 loops back to decision 602. In other words, in the alternative method 600, step 505 involves determining whether to transmit a WUS to a capacity cell when the next WUS timing does not conflict with any paging timing of the anchor cell, and waiting until that condition is met.

[0123] Figure 7 An alternative method 700 is shown for performing step 505 of method 500, which determines the transmission of WUS to the capacity cell. Method 700 begins at 701. At decision 702, the method determines whether the next WUS timing does not conflict with any paging timing of the anchor cell. At the branch 'Yes' 703, method 700 returns to method 500 at 704. At the branch 'No' 705, method 700 continues to step 706: monitoring the PEI timing on the anchor cell. At decision 707, method 700 determines that the PEI indicates that there is no paging timing of the anchor cell during the capacity cell WUS timing, or that there is no paging timing for a subgroup identifying the UE. At the branch 'Yes' 708, method 700 returns to method 500 at 704. At the branch 'No' 709, method 700 continues to decision 710: determining whether the measured RSRP / RSRQ on the anchor cell is below a predetermined threshold. At branch 'Yes' 711, method 700 returns to method 500 at 704. At branch 'No' 712, method 700 loops back to decision 702. In other words, in alternative method 700, step 505 involves determining to transmit WUS to the capacity cell when the next WUS timing does not conflict with any paging timing of the anchor cell, or when the PEI indicates that there is no paging timing of the anchor cell during the next WUS timing or indicates that there is no subgroup containing the UE during the paging timing, or when the RSRP / RSRQ measured on the anchor cell is below a predetermined threshold.

[0124] Figure 8An alternative method 800 is shown for performing step 505 of method 500, which determines the transmission of WUS to a capacity cell. Method 800 begins at 801. At step 802, method 800 monitors the PEI timing on the anchor cell. At decision 803, method 800 determines that the PEI indicates that there is no paging timing for the anchor cell during the capacity cell WUS timing, or that there is no paging timing for a subgroup identifying the UE. At branch 'Yes' 804, method 800 returns to method 500 at 805. At branch 'No' 806, method 800 continues to decision 807: determining whether the measured RSRP / RSRQ on the anchor cell is below a predetermined threshold. At branch 'Yes' 808, method 800 returns to method 500 at 805. At branch 'No' 809, method 800 loops back to decision 802. In other words, alternative method 800 is similar to alternative method 700, except that alternative method 800 omits steps such as decision 702, which first determines whether the next WUS timing does not conflict with any paging timing of the anchor cell.

[0125] Figure 9 An alternative method 900 is shown for performing step 505 of method 500, which determines the transmission of WUS to the capacity cell. Method 900 begins at 901. At decision 902, the method determines whether the next WUS timing does not conflict with any paging timing of the anchor cell. At the branch 'Yes' 903, method 900 returns to method 500 at 904. At the branch 'No' 905, method 900 continues to decision 906: determining whether the RSRP / RSRQ measured on the anchor cell is below a predetermined threshold. At the branch 'Yes' 907, method 900 returns to method 500 at 904. At the branch 'No' 908, method 900 loops back to decision 902. In other words, alternative method 900 is similar to alternative method 700, except that alternative method 900 omits steps 706 and 707 involving monitoring the PEI of the anchor cell.

[0126] Further alternatives to step 505 of method 500 are possible and anticipated. For example, in method 700, the order of the first decision 702, the second step 706 and decision 707, and the third decision 710 may be rearranged. For example, in some embodiments, decision 710 may be performed before decision 702, such that it is first determined whether the RSRP / RSRQ measured on the anchor cell is below a predetermined threshold, before determining whether the next WUS timing does not conflict with any paging timing of the anchor cell, and / or before determining that the PEI indicates that there is no paging timing of the anchor cell during the capacity cell WUS timing or that there is no paging timing identifying the UE's subgroup.

[0127] As described above, step 508 of method 500 may include determining the SIB1 of the capacity cell. The method for performing this step is described below.

[0128] therefore, Figure 10 An alternative method 1000 is shown for step 508 of performing method 500, which involves determining the SIB1 of the capacity acquisition cell. Method 1000 begins at 1001. At decision 1002, method 1000 determines whether the RSRP / RSRQ measured on the anchor cell is below a predetermined threshold. At branch 'Yes' 1003, method 1000 returns to method 500 at 1004. At branch 'No' 1005, method 1000 continues to decision 1006, where the method determines whether the next SIB1 transmission window precedes any paging timing of the anchor cell and does not conflict with any paging timing of the anchor cell. At branch 'Yes' 1007, method 1000 returns to method 500 at 1004. At branch 'No' 1008, the method continues to step 1009, which involves resynchronizing to the anchor cell. The method then continues to decision 1010: determining whether the next SIB1 transmission window does not conflict with any paging timing of the anchor cell. At branch 'Yes' 1011, the method continues to step 1012, resynchronizing to the capacity cell, and then returns to method 500 at 1004. At branch 'No' 1013, the method loops back to decision 1007. In some embodiments, decision 1002 and related branches 1003 and 1005 are omitted. In some embodiments, decisions 1002 and 1006 are reversed in order. In other words, refer to... Figure 5 If, after resynchronization to the capacity cell has been completed in step 506 and WUS has been transmitted to the capacity cell in step 507, method 1000 determines that the next SIB1 window is prior to any paging opportunity in the anchor cell and does not conflict with any paging opportunity in the anchor cell, then method 500 may proceed to step 509 to acquire the capacity cell SIB1 while maintaining synchronization with the capacity cell. In some embodiments, method 500 may proceed to step 509: if the RSRP / RSRQ measured on the anchor cell is below a predetermined threshold, acquire the capacity cell SIB1 while maintaining synchronization with the capacity cell, and in some embodiments, this may be done without first determining whether the next SIB1 window is prior to any paging opportunity in the anchor cell and does not conflict with any paging opportunity in the anchor cell. On the other hand, if the next SIB1 window that does not conflict with any anchor cell paging timing is after the next anchor cell paging timing, the method can first resynchronize to the anchor cell at step 1006, and then, once it is determined at decision 1007 that the next SIB1 transmission window does not conflict with any anchor cell paging timing, resynchronize back to the capacity cell at step 1009 so as to obtain the capacity cell SIB1 at step 509.

[0129] Figure 11 Examples of flowcharts illustrating a method 1100 that can be performed by an anchor cell according to various example embodiments are shown. The anchor cell may be similar to Figure 13 The NE1310 shown is or Figure 13 An example of NE1310 is shown.

[0130] At step 1101, according to various example embodiments, method 1100 may include receiving WUS configuration and SIB1 transmission timing information from a capacity cell, the SIB1 transmission timing information including SIB1 transmission window information, the capacity cell being similar to Figure 13 The NE1310 shown or Figure 13 The example shown is NE1310.

[0131] At step 1102, according to various example embodiments, method 1100 may further include transmitting to the UE the received WUS configuration and SIB1 transmission timing information of the capacity cell, which may be similar to Figure 13 The UE1320 shown is an example of it.

[0132] Figure 12 Examples of flowcharts illustrating a method 1100 that can be performed by a capacity cell according to various example embodiments are shown, the capacity cell being similar to Figure 13 The NE1310 shown is an example of it.

[0133] In step 1201, method 1200 may include enabling on-demand SIB1.

[0134] At step 1202, according to various example embodiments, method 1200 may further include transmitting the WUS configuration of the capacity cell and SIB1 transmission timing information to the anchor cell. The SIB1 transmission timing information may include SIB1 transmission window information, and the anchor cell may be similar to... Figure 13 The NE1310 shown is an example of it.

[0135] At step 1203, method 1200 may further include entering an energy-saving state, such as a sleep state.

[0136] At step 1204, according to various example embodiments, method 1200 may further include receiving WUS from a UE, which may be similar to Figure 13 The UE1320 shown is an instance thereof.

[0137] At step 1205, method 1200 may further include exiting the energy-saving state.

[0138] At step 1206, method 1200 may further include transmitting the SIB1 of the capacity cell to the UE, for example, by broadcasting the SIB1.

[0139] Figure 13 An example of system 1300 according to certain example embodiments is shown. In one example embodiment, system 1300 may include multiple devices, such as multiple instances of network device (NE) 1310 and / or multiple instances of user equipment (UE) 1320. As described above, in some embodiments, UE 220 is similar to UE 1320 or an instance of UE 1320, anchor cell 230 is similar to NE 1310 or an instance of NE 1310, and capacity cell 240 is similar to NE 1310 or an instance of NE 1310.

[0140] NE1310 can be one or more of a base station (e.g., a 3G UMTS NodeB, a 4G LTE evolved NodeB, or a 5G NR next-generation NodeB), a serving gateway, a server, and / or any other access node or a combination thereof.

[0141] The NE1310 may also include at least one gNB centralized unit (CU), which may be associated with at least one gNB distributed unit (DU). The at least one gNB-CU and the at least one gNB-DU may communicate via at least one F1 interface, at least one Xn-C interface and / or via at least one NG interface of the fifth generation core (5GC).

[0142] UE1320 may include one or more of the following: mobile devices, such as mobile phones, smartphones, personal digital assistants (PDAs), tablet computers or portable media players, digital cameras, pocket cameras, video game consoles; navigation units, such as global positioning system (GPS) devices, desktop or laptop computers; single-location devices, such as sensors or smart meters; or any combination thereof. Furthermore, NE1310 and / or UE1320 may be one or more of the Citizen Broadband Radio Service (CBSD) equipment.

[0143] NE1310 and / or UE1320 may include at least one processor, designated as processor 1311 and processor 1321, respectively. Processor 1311 and processor 1321 may be embodied by any computing or data processing device, such as a central processing unit (CPU), application-specific integrated circuit (ASIC), or similar device. The processor may be implemented as a single controller or multiple controllers or processors.

[0144] At least one memory, such as memory 1312 and memory 1322, may be provided in one or more devices. The memory may be fixed or removable. The memory may include computer program instructions or computer code contained therein. Memory 1312 and memory 1322 may independently be any suitable storage device, such as a non-transitory computer-readable medium. As used herein, the term "non-transitory" may correspond to a limitation of the medium itself (i.e., tangible rather than tactile), rather than a limitation of the persistence of data storage (e.g., random access memory (RAM) versus read-only memory (ROM)). Hard disk drives (HDDs), random access memory (RAM), flash memory, or other suitable memory may be used. The memory may be combined with a processor on a single integrated circuit or may be separate from one or more processors. Furthermore, the computer program instructions stored in the memory and processed by the processor may be any suitable form of computer program code, such as a compiled or interpreted computer program written in any suitable programming language.

[0145] Processors 1311 and 1321, memory 1312 and 1322, and any subset thereof can be configured to provide with Figures 2 to 12 The device may include corresponding components for each block. Although not shown, the device may also include positioning hardware, such as GPS or microelectromechanical systems (MEMS) hardware, which can be used to determine the device's location. Other sensors are also permitted and can be configured to determine location, altitude, speed, orientation, etc., such as barometers, compasses, etc.

[0146] like Figure 13 As shown, transceiver 1313 and transceiver 1323 may be provided, and one or more devices may also include at least one antenna, shown as antenna 1314 and antenna 1324 respectively. The device may have a plurality of antennas, such as an antenna array configured for multiple-input multiple-output (MIMO) communication, or multiple antennas for various RATs. Other configurations of these devices may be provided, for example. Transceiver 1313 and transceiver 1323 may be a transmitter, a receiver, both a transmitter and a receiver, or may be units or devices configured for both transmission and reception.

[0147] The memory and computer program instructions can be configured, together with a processor for a particular device, to cause a hardware device such as a UE to perform any of the above processes (i.e., Figures 2 to 12 Therefore, in some example embodiments, the non-transitory computer-readable medium may be encoded with computer instructions that, when executed in hardware, perform one of the procedures described herein. Alternatively, some example embodiments may be executed entirely in hardware.

[0148] In some example embodiments, the apparatus may include being configured to perform Figures 2 to 12 The term "circuit" as used herein may refer to one, more, or all of the following: (a) a hardware circuit implementation only (e.g., an implementation only in analog and / or digital circuitry); (b) a combination of hardware circuitry and software, such as (if applicable): (i) a combination of (multiple) analog and / or digital hardware circuitry and software / firmware; and (ii) any portion of (multiple) hardware processors and software (including (multiple) digital signal processors), software, and (multiple) memories, which work together to enable a device such as a mobile phone or server to perform various functions; and (c) (multiple) hardware circuitry and / or (multiple) processors, such as (multiple) microprocessors or a portion thereof, which require software (e.g., firmware) to operate, but may be absent if the software is not required for operation. This definition of "circuit" applies to all uses of the term in this application, including its use in any claim. As another example, as used herein, the term "circuit" also covers an implementation of hardware circuitry or a processor (or multiple processors) only, or a portion thereof, and its accompanying software and / or firmware. The term "circuit" also covers, for example, baseband integrated circuits or processor integrated circuits for mobile devices, or similar integrated circuits in servers, cellular network devices or other computing or networking devices, where applicable to certain elements of the claims.

[0149] Figure 14 Examples of 5G network and system architectures according to certain example embodiments are shown. Several network functions are illustrated, which can be implemented as software operating as part of a network device or dedicated hardware, as the network device itself or dedicated hardware, or as virtual functions operating as a network device or dedicated hardware. Figure 14 The NE and UE shown can be similar to NE1310 and UE1320, respectively. User plane functions (UPFs) provide services such as intra- and inter-RAT mobility, data packet routing and forwarding, packet inspection, user plane quality of service (QoS) processing, downlink packet buffering, and / or triggering downlink data notifications. Application functions (AFs) can primarily interface with the core network to facilitate application use of traffic routing and interact with the policy framework.

[0150] According to some example embodiments, processors 1311 and 1321, as well as memories 1312 and 1322, may be included in or form part of processing or control circuitry. Additionally, in some example embodiments, transceivers 1313 and 1323 may be included in or form part of transceiver circuitry.

[0151] In some example embodiments, the apparatus (e.g., NE1310 and / or UE1320) may include components for performing the methods, processes, or any variations discussed herein. Examples of such components may include one or more processors, memory, controllers, transmitters, receivers, and / or computer program code for causing operations to be performed.

[0152] To facilitate a better understanding of this disclosure, certain terms have been defined. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which embodiments of the disclosed subject matter pertain. While many methods and materials similar to, modified, or equivalent to those described herein may be used in practice with respect to embodiments of this disclosure without excessive experimentation, preferred materials and methods are described herein.

[0153] All terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting in any way or scope. For example, as used in this specification and the appended claims, the singular forms “a,” “an,” and “the” may include plural indicators unless the content expressly indicates otherwise.

[0154] While the disclosed subject matter may be embodied in many different forms, specific embodiments are described in detail herein. This disclosure is an example of the principles of the disclosed subject matter and is not intended to limit the disclosed subject matter to the specific embodiments shown. Furthermore, the disclosed subject matter covers any possible combination of some or all of the various embodiments mentioned herein. Additionally, the disclosed subject matter also specifically excludes any possible combination of any or some of the various embodiments mentioned herein.

[0155] The features, structures, or characteristics of the exemplary embodiments described throughout this specification can be combined in any suitable manner in one or more exemplary embodiments. For example, the use of phrases such as "various embodiments," "some embodiments," "some embodiments," or other similar language throughout this specification refers to the fact that a particular feature, structure, or characteristic described in connection with an exemplary embodiment can be included in at least one exemplary embodiment. Therefore, the phrases "in various embodiments," "in some embodiments," "in some embodiments," or other similar language appearing throughout this specification do not necessarily refer to the same set of exemplary embodiments, and the described features, structures, or characteristics can be combined in any suitable manner in one or more exemplary embodiments.

[0156] This document uses the auxiliary verb "may" to describe some embodiments of the disclosed subject matter. When used herein, unless the context requires otherwise, the auxiliary verb "may" indicates an embodiment of the disclosed subject matter having the object involved, without necessarily requiring any other embodiment of the disclosed subject matter to have the object involved. Thus, a statement such as "X may include Y" indicates that the disclosed subject matter includes embodiments in which X includes Y, without requiring all disclosed embodiments to include Y, and without excluding any other embodiments that do not include Y.

[0157] The ranges of numbers listed in the specification include the numbers that define the range and include every integer within the defined range. Throughout this disclosure, various aspects of the embodiments are presented in a range format. It should be understood that the range format description is merely for convenience and brevity and should not be construed as an inflexible limitation on the range of the embodiments. Therefore, the description of a range should be considered as having specifically disclosed all possible subranges, fractions, and individual numerical values ​​within that range. For example, a description of a range such as 1 to 6 should be considered as having specifically disclosed subranges such as 1 to 3, 1 to 4, 1 to 5, 2 to 4, 2 to 6, 3 to 6, etc., and individual numbers within that range, such as 1, 2, 3, 4, 5, and 6, as well as decimals and fractions, such as 1.2, 3.8, 1½, and 4¾. This applies regardless of the width of the range.

[0158] As used herein, the terms “about” or “approximately” refer to, for example, a change in a value relative to any quantifiable variable (including, but not limited to, mass, volume, time, distance, voltage, and current) that may occur through typical measurement techniques and equipment. The terms “about” and “approximately” also encompass these changes. An expression combining the term “about” or “approximately” with one or more boundaries of a range refers to the union of the boundaries modified by the term “about” or “approximately” as described above with the range having unmodified boundaries. Thus, for example, the expression “at least about X” means the union of “at least X” and “about X”. Similarly, “at most about Y” means the union of “at most Y” and “about Y”.

[0159] As used herein, “at least one of the following: ” and “at least one of ” and similar wording, wherein the list of two or more elements is connected by “and” or “or”, indicates at least any one element, at least any two or more elements, or at least all elements.

[0160] The phrase “and / or” as used herein in the specification and claims should be understood to mean any one or both of the elements so combined, that is, elements that exist in combination in some cases and separately in others. Multiple elements listed with “and / or” should be interpreted in the same way, i.e., “one or more” elements so combined. In addition to the elements specifically identified by the “and / or” clause, other elements may optionally exist, whether related to or unrelated to those specifically identified. Thus, as a non-limiting example, when used in conjunction with open-ended language such as “comprising,” a reference to “A” and / or “B” may in one embodiment refer only to A (optionally including elements other than B); in another embodiment, only to B (optionally including elements other than A); in yet another embodiment, both A and B (optionally including other elements); and so on.

[0161] As used herein in the specification and claims, “or” should be understood to have the same meaning as “and / or” as defined above. For example, when separating items in a list, “or” or “and / or” should be interpreted as inclusive, i.e., including multiple elements or at least one of the elements in the list, but also including more than one, and optionally, additional unlisted items. Only when explicitly indicating the opposite, such as “only one of…” or “exact one of…”, or when used in a claim, “consisting of…” will refer to including multiple elements or exactly one of the elements in the list. Generally, when preceded by an exclusive term (such as “any,” “one of,” “only one,” or “exact one”), the term “or” as used herein should be interpreted only as indicating an exclusive alternative (i.e., “one or the other, but not both”). When used in a claim, “consisting substantially of…” should have its ordinary meaning as used in the field of patent law.

[0162] Furthermore, if necessary, the different functions or processes discussed above can be executed in different orders and / or simultaneously with each other. Additionally, if necessary, one or more of the described functions or processes can be optional or can be combined. Therefore, the above description should be considered as an illustration of the principles and teachings of certain exemplary embodiments, and not as a limitation thereof.

[0163] It will be readily understood by those skilled in the art that the exemplary embodiments discussed above can be practiced with processes of a different order and / or with hardware elements in a configuration different from the disclosed configuration. Therefore, although some embodiments have been described based on these exemplary embodiments, it will be apparent to those skilled in the art that certain modifications, variations, and alternative constructions will be readily apparent while remaining within the spirit and scope of the exemplary embodiments.

[0164] Partial vocabulary list 3GPP: Third Generation Partnership Project 5G: Fifth Generation 5GC: Fifth Generation Core 6G: Sixth Generation AF: Application Functions ASIC: Application-Specific Integrated Circuit CBSD: Citizens' Broadband Radio Service Equipment CPU: Central Processing Unit CU: Centralized Unit DU: Distribution Unit eMBB: Enhanced Mobile Broadband eNB: Evolution Node B gNB: Next-Generation Node B GPS: Global Positioning System HDD: Hard Disk Drive IoT: Internet of Things LTE: Long Term Evolution LTE-A: Advanced Long Term Evolution MEMS: Microelectromechanical Systems MIB: Master Information Block MIMO: Multiple Input Multiple Output MU-SIM: Multiple SIM mMTC: Massive Machine-Type Communication NE: Network Entity NG: Next Generation NG-eNB: Next-Generation Evolution Node B NG-RAN: Next Generation Radio Access Network NR: New Radio O&M: Operation and Maintenance PDA: Personal Digital Assistant PDSCH: Physical Downlink Shared Channel PEI: Advance Paging Instruction QoS: Quality of Service RA: Random Access RACH: Random Access Channel RAM: Random Access Memory RAN: Radio Access Network RAR: Random Access Response RAT: Radio Access Technology RF: Radio Frequency ROM: Read-Only Memory RSRP: Reference Signal Received Power RSRQ: Reference Signal Reception Quality SI: System Information SIB: System Information Block SSB: Synchronization Signal Block TDD: Time Division Duplex UE: User Equipment UMTS: Universal Mobile Telecommunications System UPF: User-Face Functionality URLLC: Ultra-Reliable Low-Latency Communication UTRAN: Universal Mobile Telecommunications System Terrestrial Radio Access Network WUS: Wake-up signal

Claims

1. An apparatus comprising: At least one processor; as well as At least one memory, the at least one memory storing instructions that, when executed by the at least one processor, cause the device to at least: Receive the Wake-up Signal (WUS) configuration and System Information Block 1 (SIB1) timing information from the anchor cell; Determine the WUS transmission conditions for transmitting the WUS to the capacity cell; as well as In response to determining the WUS transmission conditions, WUS is transmitted to the capacity cell.

2. The apparatus of claim 1, wherein the instructions, when executed by the at least one processor, cause the apparatus to at least: The WUS transmission conditions are determined by identifying the next WUS opportunity of the capacity cell that does not conflict with any anchor cell paging opportunity of the anchor cell based on the WUS configuration as the selected WUS opportunity; and The WUS is transmitted to the capacity cell during the selected WUS timing period.

3. The apparatus of claim 2, wherein the instructions, when executed by the at least one processor, cause the apparatus to at least: By determining that the WUS timing interval between the selected WUS timing and the anchor cell paging timing is at least a predetermined minimum WUS timing interval, it is determined that the selected WUS timing does not conflict with any anchor cell paging timing.

4. The apparatus according to claim 2 or 3, wherein the instructions, when executed by the at least one processor, cause the apparatus to at least: The WUS transmission conditions are determined as follows: Receive the paging advance indication (PEI) of the anchor cell; and The WUS transmission conditions are determined based on the PEI.

5. The apparatus of claim 4, wherein the instructions, when executed by the at least one processor, cause the apparatus to at least: The WUS transmission conditions are determined based on the PEI by determining an anchor cell paging timing during the selected WUS timing of the capacity cell where the anchor cell does not exist.

6. The apparatus according to claim 4 or 5, wherein the instructions, when executed by the at least one processor, cause the apparatus to at least: The WUS transmission conditions are determined based on the PEI by determining an anchor cell paging timing that does not involve a subgroup containing the device during the selected WUS timing period, as indicated by the PEI.

7. The apparatus according to any one of claims 1 to 6, wherein the instructions, when executed by the at least one processor, cause the apparatus to at least: The WUS transmission conditions are determined by determining that the measured reference signal received power (RSRP) and / or the measured reference signal received quality (RSRQ) of the anchor cell are below a predetermined minimum reference signal measurement value.

8. The apparatus according to any one of claims 1 to 7, wherein the instructions, when executed by the at least one processor, cause the apparatus to at least: The WUS transmission conditions are determined while residing on the anchor cell.

9. The apparatus according to any one of claims 1 to 8, wherein the instructions, when executed by the at least one processor, further cause the apparatus to at least: Before determining the WUS transmission conditions, the capacity cell is measured, and it is determined that the capacity cell meets the cell reselection criteria and that the on-demand SIB1 function is enabled.

10. The apparatus of claim 9, wherein the instructions, when executed by the at least one processor, further cause the apparatus to at least: In response to determining that the capacity cell meets the cell reselection criteria and that the on-demand SIB1 function has been enabled, reselection of the capacity cell is prohibited until the SIB1 of the capacity cell is obtained.

11. The apparatus according to any one of claims 1 to 10, wherein the instructions, when executed by the at least one processor, further cause the apparatus to at least: After transmitting the WUS to the capacity cell, it is determined that SIB1 will be obtained from the capacity cell; and In response to determining that the SIB1 is to be obtained from the capacity cell, the SIB1 is obtained from the capacity cell.

12. The apparatus of claim 11, wherein the instructions, when executed by the at least one processor, cause the apparatus to at least: The SIB1 is determined to be obtained from the capacity cell by determining that the measured reference signal received power (RSRP) and / or the measured reference signal received quality (RSRQ) of the anchor cell are lower than a predetermined minimum reference signal measurement value.

13. The apparatus of claim 11, wherein the instructions, when executed by the at least one processor, cause the apparatus to at least: The SIB1 is determined to be obtained from the capacity cell by identifying the next SIB1 transmission window of the capacity cell that does not conflict with the paging timing of any anchor cell of the anchor cell based on the SIB1 timing information; and The SIB1 is acquired from the capacity cell during the selected SIB1 transmission window.

14. The apparatus of claim 13, wherein the instructions, when executed by the at least one processor, cause the apparatus to at least: By determining that the SIB1 transmission window of the capacity cell does not conflict with any anchor cell paging timing of the anchor cell, the SIB1 transmission window interval between the selected SIB1 transmission window and any anchor cell paging timing is at least a predetermined minimum SIB1 transmission window interval.

15. The apparatus of claim 13 or 14, wherein the instructions, when executed by the at least one processor, further cause the apparatus to at least: After transmitting the WUS to the capacity cell and before obtaining the SIB1 from the capacity cell, at least one anchor cell paging timing is determined to precede the selected SIB1 transmission window, and in response to determining that the at least one anchor cell paging timing precedes the selected SIB1 transmission window, resynchronization to the anchor cell is performed before all timings in the at least one anchor cell paging timing, and then resynchronization to the capacity cell is performed after all timings in the at least one anchor cell paging timing and before the selected SIB1 transmission window.

16. The apparatus according to any one of claims 11 to 15, wherein the instructions, when executed by the at least one processor, further cause the apparatus to at least: After obtaining the SIB1 from the capacity cell, a cell reselection process is performed to determine reselection to the capacity cell.

17. An apparatus comprising: At least one processor; as well as At least one memory, the at least one memory storing instructions that, when executed by the at least one processor, cause the device to at least: Receive wake-up signal (WUS) configuration and system information block 1 (SIB1) timing information from the capacity cell; as well as Transmit the WUS configuration and SIB1 timing information of the capacity cell to the user equipment (UE).

18. An apparatus comprising: At least one processor; as well as At least one memory, the at least one memory storing instructions that, when executed by the at least one processor, cause the device to at least: Enable the On-Demand System Information Block 1 (SIB1) function at the capacity cell level; and Transmit the wake-up signal (WUS) configuration and SIB1 timing information of the capacity cell to the anchor cell.

19. An apparatus comprising: Components used for receiving wake-up signal (WUS) configuration and system information block 1 (SIB1) timing information from anchor cell; Components for determining the WUS transmission conditions for transmitting the WUS to the capacity cell; as well as A component for transmitting WUS to the capacity cell in response to determining the WUS transmission conditions.

20. The apparatus of claim 19, wherein: Determining the WUS transmission conditions includes: based on the WUS configuration, determining the next WUS timing of the capacity cell that does not conflict with any anchor cell paging timing of the anchor cell as the selected WUS timing; and Transmitting the WUS includes transmitting the WUS to the capacity cell during a selected WUS timing period.

21. The apparatus according to claim 20, wherein: Determining that the selected WUS timing does not conflict with any anchor cell paging timing includes: determining that the WUS timing interval between the selected WUS timing and the anchor cell paging timing is at least a predetermined minimum WUS timing interval.

22. The apparatus according to claim 20 or 21, wherein: Determining the WUS transmission conditions includes: Receive the paging advance indication (PEI) of the anchor cell; and The WUS transmission conditions are determined based on the PEI.

23. The apparatus according to claim 22, wherein: Determining the WUS transmission conditions based on the PEI includes: determining an anchor cell paging timing indicated by the PEI when the anchor cell does not exist during the selected WUS timing in the capacity cell.

24. The apparatus according to claim 22 or 23, wherein: Determining the WUS transmission conditions based on the PEI includes: determining that the PEI indicates an anchor cell paging timing that does not involve a subgroup containing the device during the selected WUS timing.

25. The apparatus according to any one of claims 19 to 24, wherein: Determining the WUS transmission conditions includes: determining that the measured reference signal received power (RSRP) and / or the measured reference signal received quality (RSRQ) of the anchor cell are lower than a predetermined minimum reference signal measurement value.

26. The apparatus according to any one of claims 19 to 25, wherein: The device is operable to determine the WUS transmission conditions when the device is stationed on the anchor cell.

27. The apparatus according to any one of claims 19 to 26, further comprising: Components used to measure the capacity cell before determining the WUS transmission conditions, and to determine that the capacity cell meets the cell reselection criteria and has enabled the on-demand SIB1 function.

28. The apparatus of claim 27, further comprising: A component for preventing the reselection of the capacity cell until the SIB1 of the capacity cell is obtained, in response to determining that the capacity cell meets the cell reselection criteria and the on-demand SIB1 function is enabled.

29. The apparatus according to any one of claims 19 to 28, further comprising: A component for determining, after transmitting the WUS to the capacity cell, to obtain SIB1 from the capacity cell, and in response to determining to obtain SIB1 from the capacity cell, obtaining SIB1 from the capacity cell.

30. The apparatus according to claim 29, wherein: Determining that the SIB1 is obtained from the capacity cell includes: determining that the measured reference signal received power (RSRP) and / or the measured reference signal received quality (RSRQ) of the anchor cell is lower than a predetermined minimum reference signal measurement value.

31. The apparatus according to claim 29, wherein: Determining to obtain the SIB1 from the capacity cell includes: determining the next SIB1 transmission window of the capacity cell that does not conflict with the paging timing of any anchor cell of the anchor cell, based on the SIB1 timing information, as the selected SIB1 transmission window; and Obtaining the SIB1 from the capacity cell includes: obtaining the SIB1 from the capacity cell during the selected SIB1 transmission window.

32. The apparatus according to claim 31, wherein: Determining that the SIB1 transmission window of the capacity cell does not conflict with any anchor cell paging timing of the anchor cell includes: determining that the SIB1 transmission window interval between the selected SIB1 transmission window and any anchor cell paging timing is at least a predetermined minimum SIB1 transmission window interval.

33. The apparatus according to claim 31 or 32, further comprising: The component is configured to: determine at least one anchor cell paging timing prior to a selected SIB1 transmission window after transmitting the WUS to the capacity cell and before obtaining the SIB1 from the capacity cell; and in response to determining that the at least one anchor cell paging timing prior to the selected SIB1 transmission window, resynchronize to the anchor cell before all timings in the at least one anchor cell paging timing, and then resynchronize to the capacity cell after all timings in the at least one anchor cell paging timing and before the selected SIB1 transmission window.

34. The apparatus according to any one of claims 29 to 33, further comprising: Components used to perform a cell reselection process to determine the cell to be reselected to after obtaining the SIB1 from the capacity cell.

35. An apparatus comprising: A component for receiving wake-up signal (WUS) configuration and system information block 1 (SIB1) timing information from capacity cells; as well as Components for transmitting the WUS configuration and SIB1 timing information of the capacity cell to the user equipment (UE).

36. An apparatus comprising: Components used to enable the On-Demand System Information Block 1 (SIB1) function at the capacity cell; as well as Components used to transmit the wake-up signal (WUS) configuration and SIB1 timing information of the capacity cell to the anchor cell.

37. The apparatus according to any one of claims 1 to 36, wherein: The SIB1 timing information defines the timing at which the capacity cell transmits the SIB1 in response to receiving a WUS at the capacity cell.

38. The apparatus according to claim 37, wherein: The SIB1 timing information defines the periodicity by which the capacity cell transmits the SIB1 in response to receiving the WUS at the capacity cell.

39. The apparatus according to claim 37 or 38, wherein: The SIB1 timing information is defined as a predetermined delay between receiving the WUS at the capacity cell and transmitting the SIB1 at the capacity cell.

40. A method comprising: Receive the Wake-up Signal (WUS) configuration and System Information Block 1 (SIB1) timing information from the anchor cell; Determine the WUS transmission conditions for transmitting the WUS to the capacity cell; as well as In response to determining the WUS transmission conditions, WUS is transmitted to the capacity cell.

41. The method of claim 40, wherein: Determining the WUS transmission conditions includes: based on the WUS configuration, determining the next WUS timing of the capacity cell that does not conflict with any anchor cell paging timing of the anchor cell as the selected WUS timing; and Transmitting the WUS to the capacity cell includes: transmitting the WUS to the capacity cell during a selected WUS timing period.

42. The method according to claim 41, wherein: Determining that the selected WUS timing does not conflict with any anchor cell paging timing includes: determining that the WUS timing interval between the selected WUS timing and the anchor cell paging timing is at least a predetermined minimum WUS timing interval.

43. The method according to claim 41 or 42, wherein: Determining the WUS transmission conditions includes: Receive the paging advance indication (PEI) of the anchor cell; and The WUS transmission conditions are determined based on the PEI.

44. The method of claim 43, wherein: Determining the WUS transmission conditions based on the PEI includes: determining an anchor cell paging timing indicated by the PEI when the anchor cell does not exist during the selected WUS timing in the capacity cell.

45. The method according to claim 43 or 44, wherein: Determining the WUS transmission conditions based on the PEI includes: determining that the PEI indicates an anchor cell paging timing that does not involve a subgroup containing the device during the selected WUS timing.

46. ​​The method according to any one of claims 40 to 45, wherein: Determining the WUS transmission conditions includes: determining that the measured reference signal received power (RSRP) and / or the measured reference signal received quality (RSRQ) of the anchor cell are lower than a predetermined minimum reference signal measurement value.

47. The method according to any one of claims 40 to 46, comprising: The WUS transmission conditions are determined by the user equipment (UE) when the UE is camped on the anchor cell.

48. The method according to any one of claims 40 to 47, further comprising: Before determining the WUS transmission conditions, the capacity cell is measured, and it is determined that the capacity cell meets the cell reselection criteria and that the on-demand SIB1 function is enabled.

49. The method of claim 48, further comprising: In response to determining that the capacity cell meets the cell reselection criteria and that the on-demand SIB1 function has been enabled, reselection of the capacity cell is prohibited until the SIB1 of the capacity cell is obtained.

50. The method according to any one of claims 40 to 49, further comprising: After transmitting the WUS to the capacity cell, it is determined that SIB1 is obtained from the capacity cell, and in response to determining that SIB1 is obtained from the capacity cell, SIB1 is obtained from the capacity cell.

51. The method according to claim 50, wherein: Determining that the SIB1 is obtained from the capacity cell includes: determining that the measured reference signal received power (RSRP) and / or the measured reference signal received quality (RSRQ) of the anchor cell is lower than a predetermined minimum reference signal measurement value.

52. The method of claim 50, wherein: Determining to obtain the SIB1 from the capacity cell includes: determining the next SIB1 transmission window of the capacity cell that does not conflict with the paging timing of any anchor cell of the anchor cell, based on the SIB1 timing information, as the selected SIB1 transmission window; and Obtaining the SIB1 from the capacity cell includes: obtaining the SIB1 from the capacity cell during the selected SIB1 transmission window.

53. The method according to claim 52, wherein: Determining that the SIB1 transmission window of the capacity cell does not conflict with any anchor cell paging timing of the anchor cell includes: determining that the SIB1 transmission window interval between the selected SIB1 transmission window and any anchor cell paging timing is at least a predetermined minimum SIB1 transmission window interval.

54. The method according to claim 52 or 53, further comprising: After determining that the SIB1 of the capacity cell is acquired and before acquiring the SIB1 from the capacity cell, at least one anchor cell paging timing is determined to precede the selected SIB1 transmission window, and in response to determining that the at least one anchor cell paging timing precedes the selected SIB1 transmission window, the system resynchronizes to the anchor cell before all timings in the at least one anchor cell paging timing, and then resynchronizes to the capacity cell after all timings in the at least one anchor cell paging timing and before the selected SIB1 transmission window.

55. The method according to any one of claims 50 to 54, further comprising: After obtaining the SIB1 from the capacity cell, a cell reselection process is performed to determine reselection to the capacity cell.

56. A method comprising: At the anchor cell, receive wake-up signal (WUS) configuration and system information block 1 (SIB1) timing information from the capacity cell; as well as Transmit the WUS configuration and SIB1 timing information of the capacity cell to the user equipment (UE).

57. A method comprising: Enable the On-Demand System Information Block 1 (SIB1) function at the capacity cell level; as well as Transmit the wake-up signal (WUS) configuration and SIB1 timing information of the capacity cell to the anchor cell.

58. The method according to any one of claims 40 to 57, wherein: The SIB1 timing information defines the timing at which the capacity cell transmits the SIB1 in response to receiving a WUS at the capacity cell.

59. The method according to claim 58, wherein: The SIB1 timing information defines the periodicity by which the capacity cell transmits the SIB1 in response to receiving the WUS at the capacity cell.

60. The method according to claim 58 or 59, wherein: The SIB1 timing information is defined as a predetermined delay between receiving the WUS at the capacity cell and transmitting the SIB1 at the capacity cell.

61. A non-transitory computer-readable medium storing program instructions that, when executed by a device, cause the device to perform at least the method of any one of claims 40 to 60.

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