Methods and apparatus for paging indication monitoring in mobile communications
A two-stage paging monitoring system with optimized reference frames and power-efficient signal structures addresses inefficiencies in current paging designs, reducing power consumption and latency in mobile communications.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- MEDIATEK INC
- Filing Date
- 2025-12-31
- Publication Date
- 2026-07-23
AI Technical Summary
Current paging designs in mobile communications lack efficiency and reliability, particularly in idle or inactive states, necessitating improved procedures for network signaling and power savings.
Implementing a two-stage paging monitoring system with a first paging signal monitored by a low-power receiver (LR) followed by a second paging signal monitored by a main receiver (MR), utilizing a paging configuration that includes parameters for determining reference frames, monitoring durations, and beam numbers to optimize power consumption and latency.
Achieves reduced power consumption and latency by allowing the main receiver to warm up efficiently, with power savings gains compared to Rel-17 and lower paging latency than new radio (NR), while maintaining reliable communication.
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Figure CN2025147994_23072026_PF_FP_ABST
Abstract
Description
METHODS AND APPARATUS FOR PAGING INDICATION MONITORING IN MOBILE COMMUNICATIONSCROSS REFERENCE TO RELATED PATENT APPLICATION (S)
[0001] The present disclosure is part of a non-provisional application claiming the priority benefits of U.S. Patent Application No. 63 / 746,299, filed on 17 January 2025, the content of which herein being incorporated by reference in its entirety.TECHNICAL FIELD
[0002] The present disclosure is generally related to mobile communications and, more particularly, to two-stage paging monitoring, paging indication monitoring, and paging signal design with respect to apparatus in mobile communications.BACKGROUND
[0003] Unless otherwise indicated herein, approaches described in this section are not prior art to the claims listed below and are not admitted as prior art by inclusion in this section.
[0004] In mobile communications, paging is a procedure to alert a user equipment (UE) in an idle or inactive state that the network side has data for it or needs to contact it, such as incoming services, messages, calls, or system information changes. The current paging design considers efficient network signaling and power savings (e.g., Discontinuous Reception (DRX) cycles and efficient signaling) for the UEs, but it still has limitations.
[0005] Accordingly, designing appropriate paging procedures for a new generation communication system has become a critical issue in wireless communication systems, and there is an urgent need to provide such procedures to ensure efficient and reliable operation.SUMMARY
[0006] The following summary is illustrative only and is not intended to be limiting in any way. That is, the following summary is provided to introduce concepts, highlights, benefits and advantages of the novel and non-obvious techniques described herein. Select implementations are further described below in the detailed description. Thus, the following summary is not intended to identify essential features of the claimed subject matter, nor is it intended for use in determining the scope of the claimed subject matter.
[0007] An objective of the present disclosure is to propose solutions or schemes that address the aforementioned issues pertaining to two-stage paging monitoring, paging indication monitoring, and paging signal design with respect to apparatus in mobile communications.
[0008] In one aspect, a method may involve an apparatus determining a monitoring duration for monitoring a first paging signal based on a reference frame. The method may also involve the apparatus monitoring the first paging signal on the monitoring duration. The method may further involve the apparatus determining whether to monitor a second paging signal according to the monitoring of the first paging signal.
[0009] In one aspect, a method may involve an apparatus determining a paging configuration. The paging configuration may include parameters for determining a reference frame for monitoring a first paging signal. The method may also involve the apparatus transmitting the paging configuration to a user equipment (UE) via at least one of a system information block (SIB) message and a radio resource control (RRC) message. The method may further involve the apparatus transmitting the first paging signal during the reference frame based on the paging configuration.
[0010] In one aspect, a method may involve an apparatus determining an identified monitoring duration for reception of a first paging signal based on an identity of the apparatus. The method may also involve the apparatus monitoring the first paging signal on the identified monitoring duration.
[0011] In one aspect, an apparatus may comprise a transceiver which, during operation, wirelessly communicates with a network node. The apparatus may also comprise a processor communicatively coupled to the transceiver. The processor, during operation, may perform operations comprising determining a monitoring duration for monitoring a first paging signal based on a reference frame. The processor may also perform operations comprising monitoring the first paging signal on the monitoring duration. The processor may further perform operations comprising determining whether to monitor a second paging signal according to the monitoring of the first paging signal.
[0012] It is noteworthy that, although description provided herein may be in the context of certain radio access technologies, networks and network topologies such as Long-Term Evolution (LTE) , LTE-Advanced, LTE-Advanced Pro, 5th Generation (5G) , New Radio (NR) , Internet-of-Things (IoT) and Narrow Band Internet of Things (NB-IoT) , Industrial Internet of Things (IIoT) , and 6th Generation (6G) , the proposed concepts, schemes and any variation (s) / derivative (s) thereof may be implemented in, for and by other types of radio access technologies, networks and network topologies. Thus, the scope of the present disclosure is not limited to the examples described herein.BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The accompanying drawings are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of the present disclosure. The drawings illustrate implementations of the disclosure and, together with the description, serve to explain the principles of the disclosure. It is appreciable that the drawings are not necessarily in scale as some components may be shown to be out of proportion than the size in actual implementation in order to clearly illustrate the concept of the present disclosure.
[0014] FIG. 1 is a diagram depicting example scenarios 100 under schemes in accordance with implementations of the present disclosure.
[0015] FIG. 2 is a diagram depicting an example scenario 200 under schemes in accordance with implementations of the present disclosure.
[0016] FIG. 3 is a diagram depicting an example scenario 300 under schemes in accordance with implementations of the present disclosure.
[0017] FIG. 4A is a diagram depicting an example scenario 400 under schemes in accordance with implementations of the present disclosure.
[0018] FIG. 4B is a diagram depicting an example scenario 400 under schemes in accordance with implementations of the present disclosure.
[0019] FIG. 5 is a diagram depicting an example scenario 500 under schemes in accordance with implementations of the present disclosure.
[0020] FIG. 6 is a diagram depicting an example of a sequence in accordance with implementations of the present disclosure.
[0021] FIG. 7 is a block diagram of an example communication system in accordance with an implementation of the present disclosure.
[0022] FIG. 8 is a flowchart of an example process in accordance with an implementation of the present disclosure.
[0023] FIG. 9 is a flowchart of an example process in accordance with an implementation of the present disclosure.
[0024] FIG. 10 is a flowchart of an example process in accordance with an implementation of the present disclosure. DETAILED DESCRIPTION OF PREFERRED IMPLEMENTATIONS
[0025] Detailed embodiments and implementations of the claimed subject matters are disclosed herein. However, it shall be understood that the disclosed embodiments and implementations are merely illustrative of the claimed subject matters which may be embodied in various forms. The present disclosure may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments and implementations set forth herein. Rather, these exemplary embodiments and implementations are provided so that description of the present disclosure is thorough and complete and will fully convey the scope of the present disclosure to those skilled in the art. In the description below, details of well-known features and techniques may be omitted to avoid unnecessarily obscuring the presented embodiments and implementations. Overview
[0026] Implementations in accordance with the present disclosure relate to various techniques, methods, schemes and / or solutions pertaining to two-stage paging as well as paging indication monitoring and paging signal design in mobile communications. According to the present disclosure, a number of possible solutions may be implemented separately or jointly. That is, although these possible solutions may be described below separately, two or more of these possible solutions may be implemented in one combination or another.
[0027] FIG. 1 illustrates an example scenario 100 under schemes in accordance with implementations of the present disclosure. Scenario 100 involves at least one network node and a UE, which may be a part of a wireless communication network (e.g., an LTE network, a 5G / NR network, an IoT network, or a 6G network) . Scenario 100 illustrates the current network framework. The UE may connect to the network side. The network side may comprise one or more network nodes. For illustrative purposes, one network node and one UE may be described hereinafter. However, it is not intended to limit the network scenarios of the present disclosure.
[0028] In the present disclosure, the UE may support the Lower Power Wake-Up Signal (LP-WUS) / Lower Power Wake-Up Receiver (LP-WUR) function. The UE may operate in a Radio Resource Control idle (RRC_IDLE) mode or an RRC inactive (RRC_INACTIVE) mode. In the present disclosure, a Low-power Receiver (LR) of the UE may monitor a paging indication signal, which may be transmitted from the network side. The LR of the UE may send a wake-up signal (WUS) to trigger a main radio (MR) of the UE to wake up in an event that the LR of the UE receives the paging indication signal.
[0029] FIG. 2 is a diagram depicting an example scenario 200 of a two-stage paging procedure in accordance with an implementation of the present disclosure. In some implementations, the procedure may proceed from step 201 to step 207. In some implementations, the procedure may proceed from step 201 to step 205.
[0030] In step S201, network node 210 may determine a paging configuration comprising parameters for determining a reference frame for monitoring a first paging signal. In some implementations, network node 210 may determine the paging configuration comprising the parameters for determining a monitoring duration within the reference frame for monitoring a first paging signal.
[0031] In some implementations, the parameters in the paging configuration may include at least one of a monitoring periodicity of the first paging signal (e.g., a low-power paging signal) , a number of reference frames per monitoring periodicity (i.e., within one monitoring periodicity) and a radio frame offset.
[0032] In some implementations, network node 210 may determine a reference frame for a group of UEs based on the monitoring periodicity of the first paging signal and the radio frame offset. In one example, network node 210 may determine that the monitoring periodicity of the first paging signal (e.g., the low-power paging signal) may be 32 radio frames, the number of reference frames per monitoring periodicity may be 4, and the radio frame offset may be 6 radio frames. Accordingly, network node 210 may determine reference frame 26 for UEs belonging to group #0, reference frame 2 for UEs belonging to group #1, reference frame 10 for UEs belonging to group #2 and reference frame 18 for UEs belonging to group #3, wherein reference frame 26 may be the 26th radio frame (i.e., system frame number (SFN) is 26) , reference frame 2 may be the 2nd radio frame (i.e., SFN is 2) and so on. In some implementations, the reference frame may be an identified reference frame. In other words, the reference frame may be associated with an identity of the UE.
[0033] In some implementations, network node 210 may determine a monitoring duration within the reference frame for a UE (e.g., UE 220) monitoring the first paging signal (e.g., a low-power paging signal) . In the present disclosure, the monitoring duration may be monitoring occasion (s) of a low-power paging signal that is received via the LR of a UE (e.g., UE 220) and may be represented as “LO” . In some implementations, the monitoring duration may be an identified monitoring duration. In other words, the monitoring duration may be associated with an identity of the UE. In some implementations, the monitoring duration may include only one monitoring occasion for a UE monitoring the first paging signal.
[0034] In some implementations, the parameters in the paging configuration may include a beam number B of synchronization signal block (SSB) of network node 210, the monitoring duration may include a plurality of monitoring occasions for a UE (e.g., UE 220) monitoring the first paging signal (e.g., the low-power paging signal) , and a number of the plurality of monitoring occasions within the monitoring duration may be equal to the beam number of the SSB of network node 210.
[0035] In some implementations, the parameters in the paging configuration may include a repetition number R of the first paging signal within one monitoring occasion. In one example, the repetition number of the first paging signal within one monitoring occasion may be 5, and the beam number of the SSB of network node 210 may be 3. Accordingly, the number of monitoring occasion (s) within one monitoring duration may be 3, and the number of the first paging signal within one reference frame may be 15.
[0036] In some implementations, the parameters in the paging configuration may include at least one of a number of reference frame (s) during each monitoring periodicity of the first paging signal, a number of monitoring duration (s) within one reference frame (i.e., a number of LO within one reference frame) and a number of subgroup (s) within one monitoring duration.
[0037] In some implementations, network node 210 may determine subgroups of UEs within one monitoring duration, wherein different subgroups of the UEs may correspond to the same monitoring duration (i.e., the same LO) . In other words, UEs with respect to the same monitoring duration may belong to different subgroups. In some implementations, the subgroup may be an identified subgroup. In other words, the subgroup of UE 220 may be associated with an identity of UE 220.
[0038] In some implementations, the parameters in the paging configuration may include a symbol offset. The symbol offset may indicate a gap between the start of the reference frame and the start of the monitoring duration.
[0039] In some implementations, the parameters in the paging configuration may include at least one of a length of a monitoring window and a time offset. The time offset may indicate a gap between the start of the monitoring duration and the start of the monitoring window.
[0040] In some implementations, the parameters in the paging configuration may include a cyclic shift and a root sequence for generating a sequence.
[0041] In step S202, the network node 210 may transmit the paging configuration to the UE 220 via a higher-layer signaling. The higher-layer signaling may include at least one of a system information block (SIB) message and a radio resource control (RRC) message.
[0042] In step S203, the UE 220 may receive the paging configuration via the higher-layer signaling and determine a monitoring duration (e.g., a time location of the monitoring duration) for monitoring the first paging signal based on the paging configuration. In some implementations, the UE 220 may perform a reference frame identification to determine a reference frame within the radio frames. In some implementations, the UE 220 may perform an LO identification to determine the monitoring duration within the reference frame.
[0043] In some implementations, to allow a flexible LO location, the UE 220 may adjust the LO location (i.e., the start of the monitoring duration) by a symbol offset. In one example, the symbol offset may indicate a gap from the start of the reference frame to the start of the LO.
[0044] In step S204, network node 210 may transmit the first paging signal (e.g., the low-power paging signal) during the monitoring duration within the reference frame based on the paging configuration. In the present disclosure, paging indication may be signaled by the low-power paging signal to notify a UE sub-group in which the UEs may need to wake up the MR and monitor on the corresponding PO (i.e., monitor on monitoring occasion (s) of paging physical downlink control channel (PDCCH) or paging physical downlink shared channel (PDSCH) received via the MR) . In some implementations, the first paging signal may be located within the SSB cluster and be time division multiplexed (TDMed) with the primary synchronization signal (PSS) / secondary synchronization signal (SSS) . The PSS / SS within the SSB cluster may be used for synchronization. In some implementations, the first paging signal may have a simpler signal structure. In one example, the first paging signal may be a sequence-based signal.
[0045] In step S205, the UE 220 may monitor the first paging signal on the monitoring duration within the reference frame. In some implementations, the UE 220 may detect its low-power paging signal using a (st+1) th sequence that may be generated by a cyclic shift and a root sequence.
[0046] In some implementations, the UE 220 may perform a subgroup identification to determine its subgroup (i.e., st) . In some implementations, each low-power paging signal may correspond to one code point and be intended for a specific UE subgroup. In one example, only one subgroup may be woken up at a time. In another example, all subgroups may be woken up at the same time.
[0047] In some implementations, each monitoring duration (i.e., each LO) may contain B consecutive monitoring occasion (s) , wherein B may be equal to the beam number of the SSB of network node 210. Each monitoring occasion of the monitoring duration may contain R repetitions to improve the coverage of the low-power paging signal.
[0048] In step S206, network node 210 may transmit a second paging signal during a monitoring window based on the paging configuration. In one example, network node 210 may transmit the second paging signal with the UE responding. Specifically, network node 210 may transmit the second paging signal in an event that the UE responds to the first paging signal (i.e., the paging indication signal) is received. In another example, network node 210 may transmit the second paging signal without the UE responding.
[0049] In step S207, the UE 220 may determine to monitor a second paging signal during a monitoring window based on the paging configuration in an event that the first paging signal (i.e., the paging indication signal) is detected. In some implementations, the LR of UE 220 may send a wake-up signal (WUS) to trigger the MR of UE 220 to wake up and monitor the second paging signal during the monitoring window in an event that the LR of UE 220 receives the first paging signal (i.e., the paging indication signal) .
[0050] FIG. 3 is a diagram depicting an example scenario 300 under schemes in accordance with implementations of the present disclosure. In the present disclosure, a group paging method performed by the LR and the MR is disclosed. In some implementations, the UE may perform a paging indication monitoring by the LR of the UE. Specifically, the UE may monitor a paging indication signal on an LO (i.e., a monitoring duration, monitoring occasion (s) of a low-power signal) via the LR. In the meantime, the MR of the UE may be in an ultra-deep sleep status. In some implementations, the first paging signal may have a simpler signal structure. In one example, the first paging signal may be a sequence-based signal. Accordingly, most of the receiving structures of the UE 220 (e.g., the MR) may not need to be turned on for receiving the sequence-based signal and may be in the ultra-deep sleep status.
[0051] In some implementations, once the LR of the UE confirms the paging indication signal during the LO is detected, the LR of the UE may transmit a wake-up signal to trigger the MR of the UE. After receiving the indication (or receiving the wake-up signal) , the MR of the UE may have enough time (e.g., ~400ms) to warm up (e.g., perform a fast synchronization or prepare to monitor on a PO) . Accordingly, a power saving gain may be achieved compared to Rel-17 by shorter duty-cycle 320ms operation on ultra-reliable low latency communication (URLLC) .
[0052] FIG. 4A is a diagram depicting an example scenario 400 under schemes in accordance with implementations of the present disclosure. In the present disclosure, a two-stage paging method performed by the LR and the MR is further disclosed. In some implementations, the LR of the UE may perform sub-group paging indication monitoring, and the MR of the UE may perform on-demand paging PHY channel decoding.
[0053] In some implementations, as shown in FIG. 4A, the UE may not be indicated to wake up and stay in a standby mode. That is, there may be no low-power signal detected by the LR of the UE during the monitoring duration. In this case, the behavior of the UE may be performing monitoring paging indication by the LR with a duty cycle (e.g., 320ms) . Accordingly, it may have a low average power consumption in the standby mode. In some implementations, the network side / network node may configure a fixed number of subgroups (e.g., 16) for a sub-group paging indication. In this case, the subgroup paging rate target is [1] %for 16 UEs within a subgroup.
[0054] FIG. 4B is a diagram depicting an example scenario 400 under schemes in accordance with implementations of the present disclosure. In some implementations, as shown in FIG. 4B, the MR of the UE may be indicated to wake up (e.g., in an event that the LR of the UE receives or detects the low-power signal during the monitoring duration) . That is, the paging indication indicates to monitor PO (i.e., monitor on monitoring occasion (s) of paging PDCCH or paging PDSCH received via the MR) . In this case, the behavior of the UE may be turning on the MR and monitoring PO within a monitoring window.
[0055] In some implementations, the time location of the PO may be after a time offset (e.g., larger than 400ms) from the low-power signal, where the time offset may be configured by the network node or determined by the UE. Accordingly, the UE may have a dynamic PO location.
[0056] In some implementations, the network node may configure the parameters including the time offset and a window length for PO monitoring in the paging configuration via a higher-layer signaling (e.g., SIB1 message) . The time offset may indicate a gap between the paging indication monitoring occasion (i.e., the LO) and the start of the monitoring window for PO monitoring. In some implementations, the UE may report its capability regarding the required time gap between the received paging indication and the start of the PO window to the network node.
[0057] In some implementations, the MR of the UE may have enough time (e.g., ~400ms) to warm up (e.g., perform a fast synchronization and / or prepare to monitor on a PO) after receiving the indication (or receiving the wake-up signal) . In addition, the UE may have a latency of paging indication (e.g., 160ms) . The paging latency of the present disclosure may be about 565ms (160ms + 400ms + 5ms (1 / 2 PO monitoring window length) ) , and it (~565ms) is less than the paging latency in new radio (NR) .
[0058] In some implementations, the PO may be located within the cluster containing SSB and control resource set 0 (CORESET #0) , and paging PDCCH (or paging PDSCH) may not be required to be in CORESET #0. In some implementations, the MR of the UE may monitor PO within the PO monitoring window based on CORESET and a search space configuration.
[0059] FIG. 5 is a diagram depicting an example scenario 500 of two-stage paging under schemes in accordance with implementations of the present disclosure. In some implementations, as shown in step 1 of FIG. 5, the UE may perform a reference frame identification to determine a reference frame RFidx based on the radio frame offset RFoffset, the monitoring periodicity T of the low-power paging signal (e.g., total number of radio frames within one monitoring periodicity) , a number of reference frames within one monitoring periodicity N, and an identity of the UE UEID. In one example, as shown in FIG. 5, the radio frame offset RFoffset is 6, the monitoring periodicity T is 32, the number of reference frames N is 4. The reference frame RFidx may be determined as follows: It should be noted that this example is for illustrative purposes and is not intended to limit the determination of the reference frame RFidx.
[0060] In this example, the network node configures radio frames 2, 10, 18, and 26 as the reference frames RFidx within the monitoring periodicity, and the UEs may be divided into four groups accordingly. Then the UE may determine one of the reference frames RFidx according to its identity UEID. In one example, UEID is 217, then RFidx is determined as 2. In one example, UEID is 5928, then RFidx is determined as 26. In one example, UEID is 62, then RFidx is determined as 10. In one example, UEID is 383, then RFidx is determined as 18.
[0061] In some implementations, the network node may configure different radio frame offsets RFoffset to adjust the time location of the reference frame RFidx within the monitoring periodicity. Accordingly, the network node may configure the reference frame (s) RFidx to be located at any usable radio frame (s) within the monitoring periodicity.
[0062] In some implementations, as shown in step 2 of FIG. 5, the UE may perform an LO identification (i.e., a monitoring duration identification) to determine a monitoring duration LOidx based on a number of reference frames within one monitoring periodicity N, a number of monitoring durations Ns within one reference frame, and an identity of the UE UEID.
[0063] In some implementations, as shown in FIG. 5, the number of reference frames N is 4, and the number of monitoring durations Ns is 2. In one example, the monitoring duration LOidx may be determined as follows:
[0064] In another example, the monitoring duration LOidx may be determined as follows: It should be noted that these examples are for illustrative purposes and are not intended to limit the determination of the monitoring duration LOidx.
[0065] In some implementations, each monitoring duration (i.e., each LO) may contain B consecutive monitoring occasion (s) , wherein B may be equal to the beam number of the SSB of the network node. Each monitoring occasion of the monitoring duration may contain R repetitions to improve the coverage of the low-power paging signal.
[0066] In some implementations, as shown in FIG. 5, the parameters in the paging configuration may include a beam number B of SSB of the network node, and the number of the monitoring occasions within one monitoring duration is equal to the beam number B of the SSB of the network node. In one example, the beam number B is 2. Accordingly, the monitoring duration includes two monitoring occasions for the UE monitoring the first paging signal (e.g., the low-power paging signal) .
[0067] In some implementations, the parameters in the paging configuration may include a repetition number R of the first paging signal within one monitoring occasion. In one example, as shown in FIG. 5, the repetition number of the first paging signal within one monitoring occasion is 6, and the beam number B of the SSB of the network node is 2. Accordingly, the number of monitoring occasions within one monitoring duration is 2, and the number of the first paging signal within one reference frame is 12.
[0068] FIG. 6 is a diagram depicting an example of a sequence in accordance with implementations of the present disclosure. In some implementations, as shown in FIG. 6, a set of masking values kWUS (l) is determined.
[0069] In some implementations, the network node may configure a cyclic shift and a root sequence in the paging configuration. The UE may generate a sequence based on the cyclic shift and the root sequence. Then the UE may detect or decode the first paging signal based on the sequence on the monitoring duration.
[0070] In some implementations, the first paging signal (i.e., low-power paging signal) may have a simpler signal structure. In one example, the first paging signal may be a sequence-based signal. It should be noted that the root sequence may include non-zero values and zero values, which form what is known as a low-density power boosted (LDPB) sequence. The LDPB sequence may leverage sparse non-zero elements, where the power may be concentrated, to enhance signal detection and reduce interference. By boosting the power at specific points (e.g., specific resource blocks (RBs) ) , the LDPB sequence may improve efficient synchronization while maintaining low complexity in processing.
[0071] In some implementations, the cyclic shifted sequence may be masked to account for phase rotation with respect to the low-power paging signal. In particular, to optimize the time domain peak-to-average power ratio (PAPR) with respect to the low-power paging signal encoded by the cyclic shifted sequence, the cyclic shifted sequence may be masked before being used to encode the low-power paging signal.
[0072] More specifically, to reduce PAPR, sequence masking techniques may modify the transmitted low-power paging signal to lower peak power levels. In some cases, Selected Mapping (SLM) may be introduced, where multiple versions of the low-power paging signal may be generated by multiplying the cyclic shifted sequence with different masks or phase sequences. These phase sequences may be independent or orthogonal, and the version with the lowest PAPR may be selected for transmission. Accordingly, PAPR may be effectively reduced without affecting the transmitted signal, improving the efficiency of power amplifiers by minimizing the signal’s peak power demands.
[0073] In some implementations, the network node may configure only one root or root sequence (e.g., ΛWUS) to support 16 subgroups per physical signal. In other implementations, the network node may configure multiple roots to support more UE subgroups.
[0074] For the example shown in FIG. 6, only one root sequence is configured, set of masking values {1 1 1 -1 1 1 1 1 -1 -1 -1 1} is applied to a first selected root sequence {0 1 40 54 66 72 76 83 85 110 113 118} and the corresponding cyclic shifted sequences, which means that: (1) non-zero values of the first selected root sequence for the first paging signal (i.e., low-power paging signal) are respectively {1 1 1 -1 1 1 1 1 -1 -1 -1 1} , and (2) non-zero values of each cyclic shifted sequence generated from the first selected root sequence are respectively {1 1 1 -1 1 1 1 1 -1 -1 -1 1} .
[0075] It should be noted that it is not intended to limit the masking values as {1, -1, j, -j} in the present disclosure. Each element of the set of masking values may be where The people skilled in the art should easily understand that, to account for different phase rotations with respect to the synchronization signal, the masking values may be adjusted when necessary.
[0076] The network node may transmit the low-power paging signal to the UE. After receiving the low-power paging signal, the UE may decode the low-power paging signal based on the cyclic shifted sequence. Accordingly, because the root sequence and the corresponding cyclic shifted sequence may have low density (i.e., these sequences may include sparse non-zero values) , low complexity detection to simplify tasks (e.g., cell search, reference symbol received power measurement, synchronization, etc. ) and low complexity signal processing in interference cancellation may be achieved. In addition, because the cyclic shifted sequence may be masked to account for phase rotation with respect to the low-power paging signal, the time domain PAPR of transmitting low-power paging signals encoded by the cyclic shifted sequence may be optimized, which results in improved power amplifier efficiency, reduced distortion, lower costs, extended battery life, and enhanced reliability.
[0077] Regarding the low-power paging signal (i.e., the first paging signal) , the cyclic shifted sequence generated by the UE for detecting or decoding the low-power paging signal is determined according to a table shown in FIG. 6 and the following equations: dWUS (n) =βWUSxj (n) xj (n) =y ( (n-Ncyclic_shift*j) mod 133) where 0≤n<133 0≤l<12 ΛWUS= [0 1 40 54 66 72 76 83 85 110 113 118] +4
[0078] In some cases, to sustain a 10 parts per million (ppm) carrier frequency offset (CFO) , Ncyclic_shift may be 8.
[0079] Illustrative Processes
[0080] FIG. 7 illustrates an example communication system 700 having an example communication apparatus 710 and an example network apparatus 720 in accordance with an implementation of the present disclosure. Each of communication apparatus 710 and network apparatus 720 may perform various functions to implement schemes, techniques, processes and methods described herein pertaining to two-stage paging monitoring, paging indication monitoring, and paging signal design with respect to UE and network apparatus in mobile communications, including scenarios / schemes described above as well as processes 800, 900 and 1000 described below.
[0081] Communication apparatus 710 may be a part of an electronic apparatus, which may be a UE such as a portable or mobile apparatus, a wearable apparatus, a wireless communication apparatus or a computing apparatus. For instance, communication apparatus 710 may be implemented in a smartphone, a smartwatch, a personal digital assistant, a digital camera, or a computing equipment such as a tablet computer, a laptop computer or a notebook computer. Communication apparatus 710 may also be a part of a machine type apparatus, which may be an IoT, NB-IoT, or IIoT apparatus such as an immobile or a stationary apparatus, a home apparatus, a wire communication apparatus or a computing apparatus. For instance, communication apparatus 710 may be implemented in a smart thermostat, a smart fridge, a smart door lock, a wireless speaker or a home control center. Alternatively, communication apparatus 710 may be implemented in the form of one or more integrated-circuit (IC) chips such as, for example and without limitation, one or more single-core processors, one or more multi-core processors, one or more reduced-instruction set computing (RISC) processors, or one or more complex-instruction-set-computing (CISC) processors. Communication apparatus 710 may include at least some of those components shown in FIG. 7 such as a processor 712, for example. Communication apparatus 710 may further include one or more other components not pertinent to the proposed scheme of the present disclosure (e.g., internal power supply, display device and / or user interface device) , and, thus, such component (s) of communication apparatus 710 are neither shown in FIG. 7 nor described below in the interest of simplicity and brevity.
[0082] Network apparatus 720 may be a part of a network apparatus, which may be a network node such as a satellite, a base station, a small cell, a router or a gateway. For instance, network apparatus 720 may be implemented in an eNodeB in an LTE network, in a gNB in a 5G / NR, IoT, NB-IoT or IIoT network or in a satellite or base station in a 6G network. Alternatively, network apparatus 720 may be implemented in the form of one or more IC chips such as, for example and without limitation, one or more single-core processors, one or more multi-core processors, or one or more RISC or CISC processors. Network apparatus 720 may include at least some of those components shown in FIG. 7 such as a processor 722, for example. Network apparatus 720 may further include one or more other components not pertinent to the proposed scheme of the present disclosure (e.g., internal power supply, display device and / or user interface device) , and, thus, such component (s) of network apparatus 720 are neither shown in FIG. 7 nor described below in the interest of simplicity and brevity.
[0083] In one aspect, each of processor 712 and processor 722 may be implemented in the form of one or more single-core processors, one or more multi-core processors, or one or more CISC processors. That is, even though a singular term “a processor” is used herein to refer to processor 712 and processor 722, each of processor 712 and processor 722 may include multiple processors in some implementations and a single processor in other implementations in accordance with the present disclosure. In another aspect, each of processor 712 and processor 722 may be implemented in the form of hardware (and, optionally, firmware) with electronic components including, for example and without limitation, one or more transistors, one or more diodes, one or more capacitors, one or more resistors, one or more inductors, one or more memristors and / or one or more varactors that are configured and arranged to achieve specific purposes in accordance with the present disclosure. In other words, in at least some implementations, each of processor 712 and processor 722 is a special-purpose machine specifically designed, arranged and configured to perform specific tasks including two-stage paging monitoring, paging indication monitoring, and paging signal design in a device (e.g., as represented by communication apparatus 710) and a network (e.g., as represented by network apparatus 720) in accordance with various implementations of the present disclosure.
[0084] In some implementations, communication apparatus 710 may also include a transceiver 716 coupled to processor 712 and capable of wirelessly transmitting and receiving data. In other words, processor 712 may transceive the data such as configuration, message, signal, information, indicator, etc. via transceiver 716. Transceiver 716 may include an MR and an LR. In some implementations, communication apparatus 710 may further include a memory 714 coupled to processor 712 and capable of being accessed by processor 712 and storing data therein. In some implementations, network apparatus 720 may also include a transceiver 726 coupled to processor 722 and capable of wirelessly transmitting and receiving data. In other words, processor 722 may transceive the data such as configuration, message, signal, information, indicator, etc. via transceiver 726. In some implementations, network apparatus 620 may further include a memory 724 coupled to processor 722 and capable of being accessed by processor 722 and storing data therein. Accordingly, communication apparatus 710 and network apparatus 720 may wirelessly communicate with each other via transceiver 716 and transceiver 726, respectively. To aid better understanding, the following description of the operations, functionalities and capabilities of each of communication apparatus 710 and network apparatus 720 is provided in the context of a mobile communication environment in which communication apparatus 710 is implemented in or as a communication apparatus or a UE and network apparatus 720 is implemented in or as a network node of a communication network.
[0085] In some implementations, each of memory 714 and memory 724 may include a type of random-access memory (RAM) such as dynamic RAM (DRAM) , static RAM (SRAM) , thyristor RAM (T-RAM) and / or zero-capacitor RAM (Z-RAM) . Alternatively, or additionally, each of memory 614 and memory 724 may include a type of read-only memory (ROM) such as mask ROM, programmable ROM (PROM) , erasable programmable ROM (EPROM) and / or electrically erasable programmable ROM (EEPROM) . Alternatively, or additionally, each of memory 714 and memory 724 may include a type of non-volatile random-access memory (NVRAM) such as flash memory, solid-state memory, ferroelectric RAM (FeRAM) , magnetoresistive RAM (MRAM) and / or phase-change memory.
[0086] Illustrative Processes
[0087] FIG. 8 illustrates an example process 800 in accordance with an implementation of the present disclosure. Process 800 may be an example implementation of above scenarios / schemes, whether partially or completely, with respect to two-stage paging monitoring, paging indication monitoring, and paging signal design of the present disclosure. Process 800 may represent an aspect of implementation of features of communication apparatus 710. Process 800 may include one or more operations, actions, or functions as illustrated by one or more of blocks 810 to 830. Although illustrated as discrete blocks, various blocks of process 800 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Moreover, the blocks of process 800 may be executed in the order shown in FIG. 8 or, alternatively, in a different order. Process 800 may be implemented by communication apparatus 710 or any suitable UE or machine type devices. Solely for illustrative purposes and without limitation, process 800 is described below in the context of communication apparatus 710. Process 800 may begin at block 810.
[0088] At block 810, process 800 may involve processor 712 of communication apparatus 710 determining a monitoring duration for monitoring a first paging signal based on a reference frame. Process 800 may proceed from block 810 to block 820.
[0089] At block 820, process 800 may involve processor 712 of communication apparatus 710 monitoring the first paging signal on the monitoring duration. Process 700 may proceed from block 820 to block 830.
[0090] At block 830, process 800 may involve processor 712 of communication apparatus 710 determining whether to monitor a second paging signal according to the monitoring of the first paging signal.
[0091] In some implementations, process 800 may involve processor 712 of communication apparatus 710 receiving a higher-layer signaling. The higher-layer signaling may be at least one of a SIB message and an RRC message and may include at least one of a radio frame offset, a monitoring periodicity, and a number of reference frames within the monitoring periodicity. The process 800 may involve processor 712 of communication apparatus 710 performing a reference frame identification to determine the reference frame based on the radio frame offset, the monitoring periodicity, the number of reference frames within the monitoring periodicity, and an identity of communication apparatus 710. The monitoring duration for monitoring the first paging signal may be within the reference frame.
[0092] In some implementations, process 800 may involve processor 712 of communication apparatus 710 determining the monitoring duration within the reference frame for monitoring the first paging signal based on the number of reference frames within the monitoring periodicity, a number of the monitoring durations within one reference frame, and the identity of communication apparatus 710. The at least one of the SIB message and the RRC message may further include the number of the monitoring durations within one reference frame.
[0093] In some implementations, the monitoring duration may be determined based on a symbol offset. The higher-layer signaling may further include the symbol offset. The symbol offset may indicate a gap between a start of the reference frame and a start of the monitoring duration.
[0094] In some implementations, process 800 may involve processor 712 of communication apparatus 710 determining monitoring occasions of the monitoring duration within the reference frame based on a beam number of synchronization signal block (SSB) . The process 800 may involve processor 712 of communication apparatus 710 determining repetitions of the first paging signal within the monitoring occasion based on a repetition number of the repetitions. The higher-layer signaling may further include the number of the repetitions and the beam number of the SSB.
[0095] In some implementations, the higher-layer signaling may further include a cyclic shift and a root sequence. The process 800 may involve processor 712 of communication apparatus 710 generating a sequence based on the cyclic shift and the root sequence. The process 800 may involve processor 712 of communication apparatus 710 detecting the first paging signal based on the sequence on the monitoring duration.
[0096] In some implementations, the higher-layer signaling may further include a number of the monitoring durations within one reference frame and a number of subgroups within one monitoring duration. The process 800 may involve processor 712 of communication apparatus 710 performing a subgroup identification to determine a subgroup associated with communication apparatus 710 based on a number of reference frames within one monitoring periodicity, the number of monitoring durations-within one reference frame, the number of subgroups within one monitoring duration, and an identity of communication apparatus 710.
[0097] In some implementations, process 800 may involve processor 712 of communication apparatus 710 determining to monitor the second paging signal on a monitoring occasion of a PDCCH or a PDSCH during a monitoring window in an event that the first paging signal is detected.
[0098] In some implementations, the higher-layer signaling may further include a window length of the monitoring window and a time offset. The process 800 may involve processor 712 of communication apparatus 710 starting to monitor the second paging signal on the monitoring occasion of the PDCCH or the PDSCH according to the time offset between a start of the monitoring duration for monitoring the first paging signal and a start of the monitoring window.
[0099] In some implementations, the first paging signal may be a low-power paging signal and monitored by an LR of communication apparatus 710, and the second paging signal may be a paging signal and monitored by an MR of communication apparatus 710. In one example, the paging signal (the second paging signal) may be a paging PDCCH. In one example, the paging signal (the second paging signal) may be a paging PDSCH.
[0100] FIG. 9 illustrates an example process 900 in accordance with an implementation of the present disclosure. Process 900 may be an example implementation of above scenarios / schemes, whether partially or completely, with respect to two-stage paging monitoring, paging indication monitoring, and paging signal design of the present disclosure. Process 900 may represent an aspect of implementation of features of communication apparatus 710. Process 900 may include one or more operations, actions, or functions as illustrated by one or more of blocks 910 to 920. Although illustrated as discrete blocks, various blocks of process 900 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Moreover, the blocks of process 800 may be executed in the order shown in FIG. 9 or, alternatively, in a different order. Process 900 may be implemented by communication apparatus 710 or any suitable UE or machine type devices. Solely for illustrative purposes and without limitation, process 900 is described below in the context of communication apparatus 710. Process 900 may begin at block 910.
[0101] At block 910, process 900 may involve processor 712 of communication apparatus 710 determining an identified monitoring duration for reception of a first paging signal based on an identity of communication apparatus 710.
[0102] At block 920, process 900 may involve processor 712 of communication apparatus 710 monitoring the first paging signal on the identified monitoring duration.
[0103] In some implementations, process 900 may involve processor 712 of communication apparatus 710 determining the identified monitoring duration further based on using a modulo arithmetic on the identity of communication apparatus 710.
[0104] In some implementations, process 900 may involve processor 712 of communication apparatus 710 receiving a higher-layer signaling. The higher-layer signaling may include the monitoring periodicity for monitoring the first paging signal, and the total number of reference frames within the monitoring periodicity. The process 900 may involve processor 712 of communication apparatus 710 performing a reference frame identification to determine an identified reference frame based on the monitoring periodicity, the total number of reference frames within the monitoring periodicity, and the identity of the apparatus. The identified monitoring duration for reception of the first paging signal may be within the identified reference frame.
[0105] FIG. 10 illustrates an example process 1000 in accordance with an implementation of the present disclosure. Process 1000 may be an example implementation of above scenarios / schemes, whether partially or completely, with respect to two-stage paging monitoring, paging indication monitoring, and paging signal design of the present disclosure. Process 1000 may represent an aspect of implementation of features of network apparatus 720. Process 1000 may include one or more operations, actions, or functions as illustrated by one or more of blocks 1010 to 1030. Although illustrated as discrete blocks, various blocks of process 1000 may be divided into additional blocks, combined into fewer blocks, or eliminated, depending on the desired implementation. Moreover, the blocks of process 1000 may be executed in the order shown in FIG. 10 or, alternatively, in a different order. Process 1000 may be implemented by network apparatus 720 or any suitable network device or machine type devices. Solely for illustrative purposes and without limitation, process 1000 is described below in the context of network apparatus 720. Process 1000 may begin at block 1010.
[0106] At block 1010, process 1000 may involve processor 722 of network apparatus 720 determining a paging configuration. The paging configuration may include parameters for determining a reference frame for monitoring a first paging signal. Process 1000 may proceed from block 1010 to block 1020.
[0107] At block 1020, process 1000 may involve processor 722 of network apparatus 720 transmitting the paging configuration to a UE via at least one of a SIB message and an RRC message. Process 1000 may proceed from block 1020 to block 1030.
[0108] At block 1030, process 1000 may involve processor 722 of network apparatus 720 transmitting the first paging signal during the reference frame based on the paging configuration.
[0109] In some implementations, the parameters may include at least one of a radio frame offset, a monitoring periodicity, a number of reference frames within the monitoring periodicity for determining the reference frame for monitoring the first paging signal.
[0110] In some implementations, the parameters may further include a number of monitoring durations within one reference frame for determining a monitoring duration within the reference frame for monitoring the first paging signal.
[0111] In some implementations, the parameters may further include a symbol offset for determining the monitoring duration within the reference frame, and the symbol offset may indicate a gap between a start of the reference frame and a start of the monitoring duration.
[0112] In some implementations, the parameters may further include a repetition number of repetitions, and a beam number of synchronization signal block (SSB) for determining monitoring occasions of the monitoring duration within the reference frame and repetitions of the first paging signal within the monitoring occasion.
[0113] In some implementations, process 1000 may involve processor 722 of network apparatus 720 encoding the first paging signal based on a sequence generated by a cyclic shift and a root sequence.
[0114] In some implementations, the parameters may further include a number of monitoring durations within one reference frame, a number of subgroups within one monitoring duration, a cyclic shift and a root sequence for generating a sequence to detect the first paging signal.
[0115] In some implementations, process 1000 may involve processor 722 of network apparatus 720 transmitting a second paging signal on a monitoring occasion of a PDCCH or a PDSCH during a monitoring window in an event that a wake-up signal is received from communication apparatus 710.
[0116] In some implementations, process 1000 may involve processor 722 of network apparatus 720 determining a time offset between a start of the monitoring duration and a start of the monitoring window. The parameters may further include a window length of the monitoring window and the time offset. Additional Notes
[0117] The herein-described subject matter sometimes illustrates different components contained within, or connected with, different other components. It is to be understood that such depicted architectures are merely examples, and that in fact many other architectures can be implemented which achieve the same functionality. In a conceptual sense, any arrangement of components to achieve the same functionality is effectively "associated" such that the desired functionality is achieved. Hence, any two components herein combined to achieve a particular functionality can be seen as "associated with" each other such that the desired functionality is achieved, irrespective of architectures or intermedial components. Likewise, any two components so associated can also be viewed as being "operably connected" , or "operably coupled" , to each other to achieve the desired functionality, and any two components capable of being so associated can also be viewed as being "operably couplable" , to each other to achieve the desired functionality. Specific examples of operably couplable include but are not limited to physically mateable and / or physically interacting components and / or wirelessly interactable and / or wirelessly interacting components and / or logically interacting and / or logically interactable components.
[0118] Further, with respect to the use of substantially any plural and / or singular terms herein, those having skill in the art can translate from the plural to the singular and / or from the singular to the plural as is appropriate to the context and / or application. The various singular / plural permutations may be expressly set forth herein for sake of clarity.
[0119] Moreover, it will be understood by those skilled in the art that, in general, terms used herein, and especially in the appended claims, e.g., bodies of the appended claims, are generally intended as “open” terms, e.g., the term “including” should be interpreted as “including but not limited to, ” the term “having” should be interpreted as “having at least, ” the term “includes” should be interpreted as “includes but is not limited to, ” etc. It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present. For example, as an aid to understanding, the following appended claims may contain usage of the introductory phrases "at least one" and "one or more" to introduce claim recitations. However, the use of such phrases should not be construed to imply that the introduction of a claim recitation by the indefinite articles "a" or "an" limits any particular claim containing such introduced claim recitation to implementations containing only one such recitation, even when the same claim includes the introductory phrases "one or more" or "at least one" and indefinite articles such as "a" or "an, " e.g., “a” and / or “an” should be interpreted to mean “at least one” or “one or more; ” the same holds true for the use of definite articles used to introduce claim recitations. In addition, even if a specific number of an introduced claim recitation is explicitly recited, those skilled in the art will recognize that such recitation should be interpreted to mean at least the recited number, e.g., the bare recitation of "two recitations, " without other modifiers, means at least two recitations, or two or more recitations. Furthermore, in those instances where a convention analogous to “at least one of A, B, and C, etc. ” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention, e.g., “a system having at least one of A, B, and C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and / or A, B, and C together, etc. In those instances where a convention analogous to “at least one of A, B, or C, etc. ” is used, in general such a construction is intended in the sense one having skill in the art would understand the convention, e.g., “a system having at least one of A, B, or C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and / or A, B, and C together, etc. It will be further understood by those within the art that virtually any disjunctive word and / or phrase presenting two or more alternative terms, whether in the description, claims, or drawings, should be understood to contemplate the possibilities of including one of the terms, either of the terms, or both terms. For example, the phrase “A or B” will be understood to include the possibilities of “A” or “B” or “A and B. ”
[0120] From the foregoing, it will be appreciated that various implementations of the present disclosure have been described herein for purposes of illustration, and that various modifications may be made without departing from the scope and spirit of the present disclosure. Accordingly, the various implementations disclosed herein are not intended to be limiting, with the true scope and spirit being indicated by the following claims.
Claims
1.A method, comprising:determining, by a processor of an apparatus, a monitoring duration for monitoring a first paging signal based on a reference frame; andmonitoring, by the processor, the first paging signal on the monitoring duration; anddetermining, by the processor, whether to monitor a second paging signal according to the monitoring of the first paging signal.2.The method of Claim 1, further comprising:receiving, by the processor, a higher-layer signaling, wherein the higher-layer signaling comprises at least one of a radio frame offset, a monitoring periodicity, and a number of reference frames within the monitoring periodicity; andperforming, by the processor, a reference frame identification to determine the reference frame based on the radio frame offset, the monitoring periodicity, the number of reference frames within the monitoring periodicity, and an identity of the apparatus, wherein the monitoring duration for monitoring the first paging signal is within the reference frame.3.The method of Claim 2, further comprising:determining, by the processor, the monitoring duration within the reference frame for monitoring the first paging signal based on the number of reference frames within the monitoring periodicity, a number of the monitoring durations within one reference frame, and the identity of the apparatus, wherein at least one of the SIB message and the RRC message further comprises the number of the monitoring durations within one reference frame.4.The method of Claim 3, wherein the monitoring duration is determined based on a symbol offset, wherein the higher-layer signaling further comprises the symbol offset, and wherein the symbol offset indicates a gap between a start of the reference frame and a start of the monitoring duration.5.The method of Claim 3, further comprising:determining, by the processor, monitoring occasions of the monitoring duration within the reference frame based on a beam number of synchronization signal block (SSB) ; anddetermining, by the processor, repetitions of the first paging signal within the monitoring occasion based on a repetition number of the repetitions, wherein the higher-layer signaling further comprises the number of the repetitions and the beam number of the SSB.6.The method of Claim 1, further comprising:receiving, by the processor, a higher-layer signaling, wherein the higher-layer signaling comprises a cyclic shift and a root sequence;generating, by the processor, a sequence based on the cyclic shift and the root sequence; anddetecting, by the processor, the first paging signal based on the sequence on the monitoring duration.7.The method of Claim 1, further comprising:receiving, by the processor, a higher-layer signaling, wherein the higher-layer signaling comprises a number of the monitoring durations within one reference frame and a number of subgroups within one monitoring duration; andperforming, by the processor, a subgroup identification to determine a subgroup associated with the apparatus based on a number of reference frames within one monitoring periodicity, the number of monitoring durations within one reference frame, the number of subgroups within one monitoring duration, and an identity of the apparatus.8.The method of Claim 1, further comprising:determining, by the processor, to monitor the second paging signal on a monitoring occasion of a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH) during a monitoring window in an event that the first paging signal is detected.9.The method of Claim 8, further comprising:receiving, by the processor, a higher-layer signaling, wherein the higher-layer signaling comprises a time offset; andstarting, by the processor, to monitor the second paging signal on the monitoring occasion of the PDCCH or the PDSCH according to the time offset between a start of the monitoring duration for monitoring the first paging signal and a start of the monitoring window.10.The method of Claim 1, wherein the first paging signal is a low-power paging signal and monitored by a low-power receiver (LR) of the apparatus, and wherein the second paging signal is a paging signal and monitored by a main receiver (MR) of the apparatus.11.A method, comprising:determining, by a processor of a network node, a paging configuration, wherein the paging configuration comprises parameters for determining a reference frame for monitoring a first paging signal;transmitting, by the processor, the paging configuration to a user equipment (UE) via at least one of a system information block (SIB) message and a radio resource control (RRC) message; andtransmitting, by the processor, the first paging signal during the reference frame based on the paging configuration.12.The method of Claim 11, wherein the parameters comprise at least one of a radio frame offset, a monitoring periodicity, a number of reference frames within the monitoring periodicity for determining the reference frame for monitoring the first paging signal.13.The method of Claim 12, wherein the parameters further comprise a number of monitoring durations within one reference frame for determining a monitoring duration within the reference frame for monitoring the first paging signal.14.The method of Claim 13, wherein the parameters further comprise a symbol offset for determining the monitoring duration within the reference frame, and wherein the symbol offset indicates a gap between a start of the reference frame to a start of the monitoring duration.15.The method of Claim 13, wherein the parameters further comprise a repetition number of repetitions, and a beam number of synchronization signal block (SSB) for determining monitoring occasions of the monitoring duration within the reference frame and repetitions of the first paging signal within the monitoring occasion.16.The method of Claim 11, further comprising:encoding, by the processor, the first paging signal based on a sequence generated by a cyclic shift and a root sequence.17.The method of Claim 11, wherein the parameters further comprise a number of monitoring durations within one reference frame, a number of subgroups within one monitoring duration, a cyclic shift and a root sequence for generating a sequence to detect the first paging signal.18.The method of Claim 13, further comprising:transmitting, by the processor, a second paging signal on a monitoring occasion of a physical downlink control channel (PDCCH) or a physical downlink shared channel (PDSCH) during a monitoring window in an event that a wake-up signal is received from the UE.19.The method of Claim 18, further comprising:determining, by the processor, a time offset between a start of the monitoring duration and a start of the monitoring window, wherein the parameters further comprise the time offset.20.An apparatus, comprising:a transceiver, during operation, wirelessly communicates with a wireless network; anda processor communicatively coupled to the transceiver such that, during operation, the processor performs operations comprising:determining a monitoring duration for monitoring a first paging signal based on a reference frame;monitoring, via the transceiver, the first paging signal on the monitoring duration; anddetermining whether to monitor a second paging signal according to the monitoring of the first paging signal.