Managing paging frames for wireless communications

Abstract

Various aspects of the disclosure relate to a user equipment (UE) for wireless communication that includes at least one memory and at least one processor coupled with the at least one memory and configured to: cause the UE to determine at least one first time slot for receiving a paging frame, wherein the at least one first time slot at least partially overlaps with at least one active duration of a discontinuous reception (DRX) cycle associated with the UE and at least one active duration of a discontinuous transmission (DTX) cycle associated with a network entity; and receive a paging message from the network entity during at least one paging occasion (PO) of the paging frame, wherein the at least one PO occurs during the at least one active duration of the DRX cycle and the at least one active duration of the DTX cycle.

Description

Cross-reference to related applications

[0001] This application claims priority to U.S. Provisional Patent Application No. 63 / 561,228, filed March 4, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to wireless communications, and more specifically, to the management (e.g., adaptation, updating, modification, adjustment) of paging frames used for wireless communications. Background Technology

[0003] A wireless communication system may include one or more network communication devices, such as base stations, that support wireless communication for one or more user communication devices, which may also be referred to as user equipment (UE) or other suitable terms. The wireless communication system may support wireless communication with one or more user communication devices by utilizing the resources of the wireless communication system (e.g., time resources (e.g., symbols, time slots, subframes, frames, etc.) or frequency resources (e.g., subcarriers, carriers, etc.)). Furthermore, the wireless communication system may support wireless communication across various radio access technologies, including third-generation (3G), fourth-generation (4G), fifth-generation (5G), and other suitable radio access technologies beyond 5G (e.g., sixth-generation (6G)).

[0004] Some wireless communication systems continue to face challenges in UE energy management. For example, wireless communication consumes a significant amount of energy for the UE. Therefore, limiting the duration during which the UE actively performs wireless communication (e.g., transmitting, receiving) control information or data can be important for reducing (e.g., minimizing) the UE's energy consumption. Typically, there are instances where wireless communication may be unnecessary, allowing for the scheduling of inactive periods for the UE without compromising its performance. However, these inactive periods can lead to undesirable increases in latency for wireless communication (e.g., transmitting, receiving). Summary of the Invention

[0005] The article “a” preceding an element is unrestricted and should be understood to refer to “at least one” or “one or more” of those elements. The terms “a,” “at least one,” “one or more,” and “at least one of one or more” are interchangeable. As used herein, the word “or,” as used in a list of items (e.g., a list of items beginning with phrases such as “at least one,” “one or more,” or “one or two”) indicates an inclusive list, such that a list of at least one of, for example, A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Furthermore, as used herein, the phrase “based on” should not be construed as referring to a closed set of conditions. For example, without departing from the scope of this disclosure, an example step described as “based on condition A” may be based on both condition A and condition B. In other words, as used herein, the phrase “based on” should be interpreted in the same manner as the phrase “at least partially based on.” Furthermore, as used herein, the term “set” may comprise one or more elements.

[0006] Some embodiments of the methods and apparatus described herein may further include: determining at least one first time slot for receiving a paging frame, wherein the at least one first time slot overlaps at least partially with at least one activity duration of a discontinuous receive (DRX) cycle associated with a UE and at least one activity duration of a discontinuous transmit (DTX) cycle associated with a network entity; and receiving a paging message from the network entity during at least one paging opportunity (PO) of the paging frame, wherein the at least one PO occurs during the at least one activity duration of the DRX cycle associated with the UE and the at least one activity duration of the DTX cycle associated with the network entity.

[0007] In some implementations of the methods and devices described herein, the UE determines a set of POs of the paging frame and selects at least one PO from the set of POs of the paging frame, wherein a first subset of the POs in the set of POs is associated with a set of one or more frequencies and the at least one first time slot, a second subset of the POs in the set of POs is associated with the set of one or more frequencies and at least one second time slot different from the at least one first time slot, the at least one PO is associated with either the first subset of the POs or the second subset of the POs, and the at least one PO is associated with at least one frequency from the set of one or more frequencies.

[0008] In some implementations of the methods and apparatus described herein, the UE selects the at least one RO based at least in part on a mapping between the at least one PO and at least one random access channel timing (RO), wherein the at least one RO is associated with at least one frequency in the set of one or more frequencies, and transmits at least one first random access message during the at least one RO and on the at least one frequency in the set of one or more frequencies.

[0009] In some embodiments of the methods and apparatus described herein, the UE determines a timing offset of the paging frame and applies the timing offset to the paging frame, wherein the at least one PO of the paging frame occurs at least in part based on the timing offset of the paging frame during at least one activity duration of the DRX cycle associated with the UE and the at least one activity duration of the DTX cycle associated with the network entity. During the activity duration of the DTX cycle associated with the network entity, the UE may monitor or receive at least one second random access message from the network entity in response to the first random access message.

[0010] In some embodiments of the methods and apparatus described herein, the UE receives downlink control information (DCI) via a physical downlink control channel (PDCCH) and decodes the DCI using a radio network temporary identifier (RNTI) associated with a paging group containing the UE. The decoded DCI may indicate at least one frequency sub-band and the at least one first time slot used to transmit the paging message. The RNTI associated with the paging group may be selected from a set of RNTIs reserved for the paging group.

[0011] In some implementations of the methods and devices described herein, the UE determines that at least one activity duration of the DRX cycle associated with the UE overlaps with at least one activity duration of the DTX cycle associated with the network entity. Attached Figure Description

[0012] Figure 1 Examples of wireless communication systems according to aspects of this disclosure are described.

[0013] Figure 2 This describes an example of paging timing within a paging frame according to aspects of this disclosure.

[0014] Figure 3 Examples of active and inactive periods of cell DTX and UE DRX according to aspects of this disclosure are provided.

[0015] Figure 4This describes an example of paging timing in frequency domain multiplexing according to aspects of this disclosure.

[0016] Figure 5 An example illustrating the frequency mapping between paging timing and RACH timing according to aspects of this disclosure.

[0017] Figure 6 Examples of UEs based on aspects of this disclosure are described.

[0018] Figure 7 An example of processor 700 according to aspects of this disclosure is described.

[0019] Figure 8 Examples of network equipment (NE) according to aspects of this disclosure are described.

[0020] Figure 9 A flowchart illustrating a method performed by a UE according to aspects of this disclosure.

[0021] Figure 10 A flowchart illustrating the method performed by NE according to aspects of this disclosure. Detailed Implementation

[0022] Wireless communication systems that include one or more network communication devices (e.g., base stations) or user communication devices (e.g., UEs) may support lower power modes, which may include one or more discontinuous reception (DRX) modes or discontinuous transmission (DTX) modes. For user communication devices, the lower power mode may correspond to a Radio Resource Control (RRC) state. For example, the user communication device may be in an idle state (e.g., RRC idle state) or an inactive state (e.g., RRC inactive state). The user communication device may switch from a connected state (e.g., RRC connected state) to an RRC idle state or an RRC inactive state, at least in part, based on the DRX mode, to save power. For example, in the RRC idle state, the user communication device may avoid transmitting or receiving control information or data.

[0023] In LTE networks, paging frames (PF) and paging timing (PO) are used to optimize the paging process and reduce the impact on network resources. A paging frame is a radio frame in which the UE monitors the paging channel (PCH) in response to a paging message. Paging frames are specified in System Information Block Type 2 (SIB2) and are typically set to values ​​aligned with the radio frame boundaries of the UE's cell.

[0024] The paging cycle defines the interval between consecutive paging events, ranging from 16 to 2560 radio frames, with a default value of 256 radio frames, corresponding to 5.12 seconds. The paging cycle value is chosen based on a trade-off between paging latency and paging overhead. A commonly used value for the paging cycle is 128. This means 128 radio frames (128 radio frames = 1280 milliseconds = 1.28 seconds). In other words, even in idle mode, the UE will wake up every 1.28 seconds to check for paging information for the UE.

[0025] Paging Cyclic DRX refers to the combination of DRX and paging cycles to further reduce UE power consumption. With paging cyclic DRX, the UE only needs to monitor the paging channel during a specific DRX period within each paging cycle, instead of continuously monitoring the channel throughout the entire cycle.

[0026] The paging loop DRX mechanism is implemented by defining two parameters: the DRX loop and the paging loop. The DRX loop is the time interval during which the UE's receiver is turned off, while the paging loop is the time interval between consecutive paging events. The duration of the DRX loop is typically shorter than that of the paging loop and is expressed as a multiple of the subframe duration.

[0027] During paging cycle DRX operation, the UE turns off its receiver during the DRX period and briefly wakes up at the end of each DRX period to check for any paging messages on the paging channel. If there are no paging messages, the UE returns to sleep and repeats the DRX cycle until the current paging cycle ends. If there are paging messages, the UE fully wakes up and initiates a connection to the network to receive messages and respond as needed.

[0028] When network power-saving configurations are activated in a cell (such as idle-mode cell DTX / DRX configuration), messages using the paging channel and physical random access channel (PRACH) must be transmitted during the cell's active period in order to be successfully received. Therefore, traditional paging frames and paging timings outside the cell's active DTX period cannot be reliably used to transmit paging messages.

[0029] Previous DTX / DRX configurations only considered the UE's DTX / DRX cycle and not the base station's DTX / DRX configuration. When a base station is configured with a DTX / DRX cycle, the timing of the cell's DTX cycle activity period may not align with the UE's DRX cycle activity period. As a result, POs transmitted during the active DTX period of a base station in power-saving mode may not be received by a UE with an misaligned DRX cycle. Therefore, the UE may remain in idle mode and be unable to receive data buffered at the base station. Furthermore, because the amount of time available to the base station is limited by the DTX / DRX cycle, the base station may not have sufficient resources to transmit pending POs within a paging cycle.

[0030] Embodiments of this disclosure can align the UE's active DRX period with the cell's active DTX period, enabling POs transmitted by the base station to be successfully received by the associated UE. Embodiments can increase the resources associated with the base station's active DTX period, allowing more POs to be transmitted to the UE during the active period compared to conventional systems. For example, in some embodiments, POs are multiplexed in the frequency domain, allowing multiple POs to be transmitted by the base station and received by the UE within a single timeslot.

[0031] Alternatively, or in an alternative, the time slots available for PO transmission and reception can be densely arranged in the time domain of the PF. For example, the time slots available for PO selection within the PF can be limited to a set of time slots within the paging frame, for example, no more than six time slots. A limited set of time slots can be clustered at the beginning of the PF. For example, a set of time slots can be limited to time slots 0 to 5, time slots 0 to 6, or time slots 0 to 7 of the PF.

[0032] The network can obtain several benefits from the embodiments of this disclosure. For example, the network can implement a base station power-saving mode using DTX / DRX periods while successfully providing paging messages to UEs. Additionally, resources can be allocated to fall within the cell's active time, allowing more UEs within the cell to receive paging messages and associated data transmissions within the limited resources of the base station's power-saving mode. In some embodiments, a lookup table used by the UE includes legacy information to minimize changes to the UE, which may operate in a legacy environment or an environment where power saving is inactive at the base station.

[0033] The aspects of this disclosure are described in the context of wireless communication systems.

[0034] Figure 1This describes an example of a wireless communication system 100 according to aspects of this disclosure. The wireless communication system 100 may include one or more NEs 102, one or more UEs 104, and a core network (CN) 106. The wireless communication system 100 may support various radio access technologies. In some embodiments, the wireless communication system 100 may be a 4G network, such as an LTE network or an LTE-A network. In some other embodiments, the wireless communication system 100 may be an NR network, such as a 5G network, a 5G-A network, or a 5G Ultra Wideband (5G-UWB) network. In other embodiments, the wireless communication system 100 may be a combination of 4G and 5G networks, or other suitable radio access technologies, including IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20. The wireless communication system 100 may support radio access technologies beyond 5G, such as 6G. In addition, the wireless communication system 100 can support technologies such as Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), or Code Division Multiple Access (CDMA).

[0035] One or more NEs 102 may be distributed across a geographical area to form a wireless communication system 100. One or more of the NEs 102 described herein may be, include, or be referred to as a network node, base station, network element, network function, network entity, radio access network (RAN), NodeB, eNodeB (eNB), next-generation NodeB (gNB), or other suitable terms. NEs 102 and UEs 104 may communicate via a communication link, which may be a wireless or wired connection. For example, NEs 102 and UEs 104 may perform wireless communication (e.g., receive signaling, transmit signaling) via a Uu interface.

[0036] NE 102 can provide a geographic coverage area that supports services for one or more UEs 104 within that geographic coverage area. For example, NE 102 and UE 104 can support wireless communication of signals associated with services (e.g., voice, video, packet data, messaging, broadcasting, etc.) based on one or more radio access technologies. In some embodiments, NE 102 can be mobile, for example, a satellite associated with a non-terrestrial network (NTN). In some embodiments, different geographic coverage areas 112 associated with the same or different radio access technologies can overlap, but different geographic coverage areas can be associated with different NEs 102.

[0037] One or more UEs 104 may be distributed across a geographical area of ​​the wireless communication system 100. UE 104 may include or be referred to as a remote unit, mobile device, wireless device, remote device, subscriber device, transmitter device, receiver device, or some other suitable term. In some implementations, UE 104 may be referred to as a unit, station, terminal, or client, and other instances thereof. Additionally or alternatively, UE 104 may be referred to as an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a Machine Type Communication (MTC) device, and other instances thereof.

[0038] UE 104 may be able to support direct wireless communication with other UE 104 via a communication link. For example, UE 104 may support direct wireless communication with another UE 104 via a device-to-device (D2D) communication link. In some implementations, such as vehicle-to-vehicle (V2V) deployments, vehicle-to-everything (V2X) deployments, or cellular-V2X deployments, communication link 114 may be referred to as a side link. For example, UE 104 may support direct wireless communication with another UE 104 via a PC5 interface.

[0039] NE 102 may support communication with CN 106 or with another NE 102 or both. For example, NE 102 may interface with other NE 102 or CN 106 via one or more backhaul links (e.g., S1, N2, N2, or network interfaces). In some embodiments, NE 102 may communicate directly with each other. In some other embodiments, NE 102 may communicate with each other or indirectly (e.g., via CN 106). In some embodiments, one or more NE 102 may include sub-components, such as access network entities, which may be instances of access node controllers (ANCs). The ANC may communicate with one or more UE 104s via one or more other access network transmitting entities (which may be referred to as radio headends, smart radio headends, or transmit-receive points (TRPs)).

[0040] CN 106 can support user authentication, access authorization, tracking, connectivity, and other access, routing, or mobility functions. CN 106 can be an evolved packet core (EPC) or a 5G core (5GC), which may include control plane entities (e.g., Mobility Management Entity (MME), Access and Mobility Management Function (AMF)) that manage access and mobility, and user plane entities (e.g., Serving Gateway (S-GW), Packet Data Network (PDN) Gateway (P-GW), or User Plane Function (UPF)) that route packets or interconnect to external networks. In some implementations, the control plane entities may manage non-access stratum (NAS) functions of one or more UEs 104 served by one or more NEs 102 associated with CN 106, such as mobility, authentication, and bearer management (e.g., data bearers, signaling bearers, etc.).

[0041] CN 106 can communicate with the packet data network via one or more backhaul links (e.g., via S1, N2, N2, or another network interface). The packet data network may contain an application server. In some implementations, one or more UEs 104 can communicate with the application server. UE 104 can establish a session (e.g., a Protocol Data Unit (PDU) session, etc.) with CN 106 via NE 102. CN 106 can use the established session (e.g., an established PDU session) to route services (e.g., control information, data, etc.) between UE 104 and the application server. A PDU session may be an instance of a logical connection between UE 104 and CN 106 (e.g., one or more network functions of CN 106).

[0042] In the wireless communication system 100, NE 102 and UE 104 can use the resources of the wireless communication system 100 (e.g., time resources (e.g., symbols, time slots, subframes, frames, etc.) or frequency resources (e.g., subcarriers, carriers)) to perform various operations (e.g., wireless communication). In some embodiments, NE 102 and UE 104 may support different resource structures. For example, NE 102 and UE 104 may support different frame structures. In some embodiments, such as in 4G, NE 102 and UE 104 may support a single frame structure. In some other embodiments, such as in 5G and other suitable radio access technologies, NE 102 and UE 104 may support various frame structures (i.e., multiple frame structures). NE 102 and UE 104 may support various frame structures based on one or more parameter sets.

[0043] The wireless communication system 100 may support one or more parameter sets, and the parameter sets may include subcarrier spacing and cyclic prefixes. A first parameter set (e.g., μ=0) may be associated with a first subcarrier spacing (e.g., 15 kHz) and a regular cyclic prefix. In some embodiments, the first parameter set (e.g., μ=0) associated with the first subcarrier spacing (e.g., 15 kHz) may utilize one time slot per subframe. A second parameter set (e.g., μ=1) may be associated with a second subcarrier spacing (e.g., 30 kHz) and a regular cyclic prefix. A third parameter set (e.g., μ=2) may be associated with a third subcarrier spacing (e.g., 60 kHz) and a regular cyclic prefix or an extended cyclic prefix. A fourth parameter set (e.g., μ=3) may be associated with a fourth subcarrier spacing (e.g., 120 kHz) and a regular cyclic prefix. A fifth parameter set (e.g., μ=4) may be associated with a fifth subcarrier spacing (e.g., 240 kHz) and a regular cyclic prefix.

[0044] Time intervals for resources (e.g., communication resources) can be organized according to frames (also called radio frames). Each frame may have a duration, for example, 10 milliseconds (ms). In some embodiments, each frame may contain multiple subframes. For example, each frame may contain 10 subframes, and each subframe may have a duration, for example, 1 ms. In some embodiments, each frame may have the same duration. In some embodiments, each subframe of a frame may have the same duration.

[0045] Alternatively, the time intervals of resources (e.g., communication resources) can be organized according to time slots. For example, a subframe may contain a certain number (e.g., quantity) of time slots. The number of time slots in each subframe may also depend on one or more parameter sets supported in the wireless communication system 100. For example, the first, second, third, fourth, and fifth parameter sets (i.e., μ=0, μ=1, μ=2, μ=3, μ=4) associated with corresponding subcarrier intervals of 15 kHz, 30 kHz, 60 kHz, 120 kHz, and 240 kHz may utilize a single time slot per subframe, two time slots per subframe, four time slots per subframe, eight time slots per subframe, and 16 time slots per subframe, respectively. Each time slot may contain a certain number (e.g., quantity) of symbols (e.g., OFDM symbols). In some embodiments, the number (e.g., quantity) of time slots in a subframe may depend on the parameter set. For a conventional cyclic prefix, a time slot may contain 14 symbols. For an extended cyclic prefix (e.g., applicable to a 60 kHz subcarrier spacing), a time slot may contain 12 symbols. The relationship between the number of symbols per time slot for the regular cyclic prefix and the extended cyclic prefix, the number of time slots per subframe, and the number of time slots per frame may depend on the parameter set. It should be understood that references to the first parameter set (e.g., μ=0) associated with the first subcarrier spacing (e.g., 15 kHz) may be used interchangeably between subframes and time slots.

[0046] In the wireless communication system 100, the electromagnetic (EM) spectrum can be divided into various categories, bands, channels, etc., based on frequency or wavelength. For example, the wireless communication system 100 may support one or more operating frequency bands, such as frequency range names FR1 (410 MHz to 7.125 GHz), FR2 (24.25 GHz to 52.6 GHz), FR3 (7.125 GHz to 24.25 GHz), FR4 (52.6 GHz to 114.25 GHz), FR4a or FR4-1 (52.6 GHz to 71 GHz), and FR5 (114.25 GHz to 300 GHz). In some embodiments, NE 102 and UE 104 may perform wireless communication on one or more of the operating frequency bands. In some embodiments, FR1 may be used by NE 102 and UE 104, as well as other equipment or devices, for cellular communication services (e.g., control information, data). In some implementations, FR2 can be used by NE 102 and UE 104, as well as other equipment or devices, for short-range, high data rate capabilities.

[0047] FR1 may be associated with one or more parameter sets (e.g., at least three parameter sets). For example, FR1 may be associated with a first parameter set containing a 15 kHz subcarrier spacing (e.g., μ=0); a second parameter set containing a 30 kHz subcarrier spacing (e.g., μ=1); and a third parameter set containing a 60 kHz subcarrier spacing (e.g., μ=2). FR2 may be associated with one or more parameter sets (e.g., at least two parameter sets). For example, FR2 may be associated with a third parameter set (e.g., μ=2) containing a 60 kHz subcarrier spacing; and a fourth parameter set (e.g., μ=3) containing a 120 kHz subcarrier spacing.

[0048] Figure 2 This section explains paging frames and paging opportunities. A paging opportunity is a specific subframe within a paging frame in which the network searches for an idle UE to deliver data. Conversely, a UE wakes up in a specific subframe (typically subframes 0, 4, 5, or 9 within a radio frame). These specific subframes within the paging frame when a UE wakes up are paging opportunities (PO).

[0049] The paging timing is determined by a combination of the paging cycle and the cell's radio frame number (RFN). The paging timing is used to minimize signaling overhead by limiting the number of subframes in which the network searches for an idle UE.

[0050] The paging cycle determines the interval between consecutive paging opportunities. The cell's RFN is a counter that increments with each radio frame and is used to determine the subframe corresponding to the paging opportunity.

[0051] The specific time at which a device connects to its receiver and checks a paging message is determined by the paging frame and the paging timing. A PF is a radio frame that may contain one or more POs (Points of Purchase) for a group of devices. A PO is the specific time at which the network may transmit a paging message for a subset of devices corresponding to the same PF. Figure 2 In the example, PF appears in frame 47, and PO appears in subframes 4 and 9.

[0052] Paging frames can be calculated using the following formula:

[0053] SFN mod T = (T / N) x (UE_ID mod N)

[0054] Where SFN is the system frame number, T = DRX cycle length in the radio frame, N = Min(T, nB), and nB is the total number of POs in a DRX cycle broadcast within SIB2, and can have values ​​of {4T, 2T, T, T / 2, T / 4, T / 8, T / 16, T / 32}. N can have values ​​of {T, T / 2, T / 4, T / 8, T / 16, T / 32}, and UE_ID = TMSI mod 1024.

[0055] The formula for calculating paging timing can be extracted from a lookup table, indexed using: Ns = Max (1, nB / T) and i_s = Floor(UE_ID / N) mod Ns, where Ns is the number of POs in the PF and indicates the subframe number (i.e., PO) in the PF, with a predefined value for each value of Ns. An example of FDD subframe mode is:

[0056]

[0057] An example of TDD subframe mode is:

[0058]

[0059] Figure 3 This document describes examples of the DTX cycle of cell 300 and the DRX cycles of UEs 104A, 104B, and 104C, based on aspects of this disclosure. The UE's DRX cycle is an idle mode DRX (I_DRX) cycle, in which the UE is periodically activated to monitor paging messages during active periods and is inactive or idle during periods between active periods.

[0060] Figure 3 The document also showcases cells configured with DTX cycling. It illustrates the active and inactive periods of the cell's DTX cycling. One or more cells associated with network entity 102 can be configured with DTX and / or DRX cycling to save energy.

[0061] In embodiments of this disclosure, when a DTX cycle is activated at a cell, public broadcast channels (e.g., paging channels, synchronization signal block (SSB) channels, and physical random access (PRACH) channels) can be aligned with the UE's active DRX time. For example, embodiments may configure paging frames to occur during both the cell's active DTX period and the target UE's active DRX period. One or both of the UE and the base station may use a new paging frame calculation derived from the calculations shown above to adapt to the cell's active period cycle and / or the UE's I_DRX cycle, such that paging messages are transmitted during the cell's active DTX period, which coincides with the UE's active period. Therefore, calculations associated with paging messages (e.g., paging frame calculations) may be adapted to incorporate the I_DRX active periods of one or more UEs to adapt to the cell's active period, such that paging frames are transmitted during the cell's active duration. In another embodiment, the new paging frame calculation includes the cell's active duration, such that paging frames are transmitted during the cell's active duration.

[0062] In some embodiments, the cell activity period can be configured as a multiple of the cell's DTX / DRX activity time, or configured such that the I_DRX activity period completely or partially overlaps with the UE's I_DRX cycle and / or the UE's connection mode DRX cycle activity period. In one example, the UE_ID value used to calculate the paging timing can be:

[0063] UE_ID = ((TMSI mod 1024) mod cell start duration)

[0064] In another instance, the value of UE_ID could be:

[0065] UE_ID = (TMSI mod Cell Start Duration)

[0066] Cell DTX / DRX activity and inactivity periods can be broadcast in system information, allowing the UE to calculate and adjust paging frame calculations based on cell activity periods, for example, by using one of the equations shown above.

[0067] refer to Figure 3 The activity period of the cell may align with or overlap with the activity period of UE 104A. This can occur regardless of whether the periodicity and on-time duration are the same or different across cells, and regardless of whether the start time of the UE I-DRX on-time duration is the same as the start time of the cell's activity period. In such embodiments, the base station may transmit a paging message in a paging frame or during a paging event within a paging frame when monitored by the UE during the overlapping activity periods of the cell and the UE.

[0068] Figure 3 In this embodiment, the activity period of UE 104B only partially overlaps with the activity period of the cell. In embodiments where the UE's activity period partially falls outside the cell's activity period, paging frames may be transmitted by the base station during the period in which the cell's activity period overlaps with the UE's activity period. When network entity 102 determines that a paging frame is scheduled to be transmitted to the UE when the UE is inactive, the base station may not transmit a paging opportunity in non-overlapping paging frames (e.g., paging frames that occur when the UE is inactive). In one embodiment, the base station may avoid transmitting a paging message during an active cell DTX period that does not overlap with the UE's active DRX period and wait to transmit the paging message in the next paging opportunity of a paging frame that overlaps with the UE's active DRX period. In another embodiment, the UE may skip paging frames and / or paging opportunities that do not overlap with the cell's activity duration.

[0069] Figure 3 It also demonstrates a situation where the UE's activity time period does not align with the activity time period of cell 302, such as... Figure 3This is seen in the case of UE104C. In one embodiment, a new second I-DRX cycle with an activity period overlapping with the cell's activity period can be activated at UE104C, and the paging frame position can be calculated using the UE's new I-DRX cycle. In another embodiment, the paging frame calculation is modified such that the paging frame is provided with a time offset shift to take into account the cell's activity period. An example of a paging frame calculation with such a time offset shift is:

[0070] PF = (SFN + paging offset) mod T = (T / N) x (UE_ID mod N)

[0071] In some embodiments, paging timing is compressed in the time domain. When both the UE and the cell use DTX / DRX cycles, there is less opportunity for alignment communication between the UE and the cell compared to when only the UE uses DTX / DRX cycles. Compressing paging timing in the time domain increases the chance of aligning paging timing with the UE's active DRX period, especially when the serving cell is in power-saving mode. In some embodiments, when there is partial overlap, the network may transmit a dynamic paging timing indication containing time-frequency resources, or dynamically activate one of the configured paging timings outside the active period of the UE's I_DRX cycle using a low-power wake-up signal to the UE. A UE monitoring a low-power wake-up signal using a low-power wake-up radio can wake up the primary radio to monitor such dynamic paging timing. In some embodiments, the low-power wake-up radio can directly monitor paging timing. In some embodiments, when the UE's active period does not align with the cell's active period, the network may transmit an auxiliary I_DRX activation to the UE using low-power wake-up signaling. Upon receiving the signaling, the UE can calculate the paging frame and paging timing based on the auxiliary I_DRX cycle.

[0072] One way to compress paging opportunities in the time domain is to multiplex one or more paging opportunities in the frequency domain. Figure 4 This section describes examples of paging timing multiplexed in the frequency domain according to aspects of this disclosure. In some embodiments, one or more paging timings within a paging frame time slot are transmitted by a base station at different frequencies within the same time slot. Figure 4 In this example, the three paging opportunities (PO1, PO2, PO3) are transmitted using different corresponding frequencies in the fourth time slot of paging frame 47. Similarly, the three paging opportunities (PO4, PO5, PO6) are transmitted in the ninth time slot.

[0073] In various embodiments, the number of paging opportunities transmitted in the same time slot may differ. Figure 4Examples include: for instance, two or four paging opportunities may be transmitted within the same time slot of a paging frame. Additionally, the time slots in which paging opportunities are transmitted may be limited to a group of fewer than 10 time slots within the paging frame.

[0074] Paging timing calculations can be modified to take into account paging resources assigned in the frequency domain. In some embodiments, a set of Radio Network Temporary Identifiers (RNTIs) is reserved for paging. Therefore, multiple RNTIs can be used for paging purposes. The set of RNTIs reserved for paging can be used to convey a paging DCI, indicating each of a plurality of Pos transmitted at different corresponding frequencies within a single time slot. For example, multiple paging DCIs can be configured such that each paging DCI transmitted on the Physical Downlink Control Channel (PDCCH) is scrambled with one of the multiple RNTIs reserved for paging, which may be a group-specific paging RNTI. Each corresponding paging DCI may be a Po indicating time and frequency resources in the time slot, such as in one or more subbands, that is frequency-multiplexed in the paging time slot. Additionally, a UE belonging to each paging group can be configured with each of the reserved paging RNTIs to monitor the PDCCH for paging information.

[0075] In another implementation, a single paging DCI scrambled with a paging RNTI can indicate the time-frequency resources of multiple POs frequency-multiplexed in the paging time slot. Each UE in the paging group can be assigned a frequency-multiplexed paging resource to receive paging messages.

[0076] In some embodiments, a new lookup table may be provided that includes paging frequency domain resource indicators within paging slots in a paging frame. Conventional lookup tables can be used to indicate the number of slots for paging opportunities in a paging frame, and a new lookup table can be implemented to indicate the number of frequency domain paging opportunities with paging slots, such as... Figure 4 As shown in the diagram. For example, a conventional table can be used to indicate the timing of paging transmission in time slots 4 and 9 of a paging frame, and a second lookup table can be used to indicate the frequency resources for paging timing in each time slot.

[0077] When two or more time slots are used for multiple paging opportunities in the frequency domain, the sequence of paging opportunities can be calculated based on frequency priority and time secondary. This can be achieved through... Figure 4 As can be seen, paging opportunities 1 to 3 are in the first time slot, and paging opportunities 4 to 6 are in the second time slot.

[0078] In some embodiments, a frequency mapping exists between the paging timing used by the UE and the corresponding RACH timing (RO) used by the UE. Figure 5An example of frequency mapping between PO and RO is shown, where PO1 is mapped to the same frequency as RO1, PO2 is mapped to the same frequency as RO2, and PO3 is mapped to the same frequency as RO3. In this type of embodiment, the UE can select RACH resources in the same frequency region where the UE has received a paging opportunity to respond to the paging message in the paging opportunity. This type of embodiment reduces potential RACH conflicts and latency.

[0079] After transmitting data to the base station on the RACH, the UE can wait for a RACH response within a configured duration window. When the cell operates in DTX / DRX mode, the ra-ResponseWindow can be started at the first PDCCH timing configured with RA-RNTI (Random Access RNTI), starting from the end of the random access preamble transmission during the cell's DTX / DRX active time. In this embodiment, the ra-ResponseWindow can skip the inactive cell's DTX / DRX period and calculate the ra-ResponseWindow for the cell's active time period.

[0080] Alternatively, or in an alternative, the paging frame may be adapted to fall within the cell's active time period in order to frequency multiplex paging opportunities within a time slot. In an embodiment, the paging frame is calculated to fall within the cell's active DTX period, such that paging opportunities are transmitted during the cell's active DTX period.

[0081] In embodiments, the distribution of paging opportunities within a paging frame may be limited to the number of consecutive time slots within the paging frame. For example, paging opportunities may be limited to occurring only in five, six, or seven consecutive time slots out of ten time slots within a paging frame. In embodiments, the first time slot in a finite set of time slots is the first time slot in the paging frame, such as frame 0. This can be achieved by modifying the paging opportunity calculation shown above and / or by using a lookup table in which paging opportunities are compressed into a finite number of time slots.

[0082] In an embodiment, RACH timing can be adjusted in the time domain so that the cell receives RACH transmissions from the UE during the cell's active DRX period. For example, RACH timing can be scheduled to occur during the overlap of the cell's and the UE's activity durations. By taking into account the cell's activity period, RACH timing can be adjusted using techniques similar to those discussed above for adjusting paging timing.

[0083] Figure 6An example of a UE 600 according to aspects of this disclosure is described. UE 600 may include a processor 602, a memory 604, a controller 606, and a transceiver 608. The processor 602, memory 604, controller 606, or transceiver 608, or various combinations thereof, or various components thereof, may be examples of components for performing the various aspects of this disclosure as described herein. These components may be coupled via one or more interfaces (e.g., operatively, communicatively, functionally, electronically, electrically).

[0084] Processor 602, memory 604, controller 606, or transceiver 608, or various combinations or components thereof, may be implemented in hardware (e.g., a circuit system). The hardware may be a processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), or other programmable logic device, or any combination thereof configured or otherwise supporting components for performing the functions described in this disclosure.

[0085] Processor 602 may include intelligent hardware devices (e.g., a general-purpose processor, DSP, CPU, ASIC, FPGA, or any combination thereof). In some embodiments, processor 602 may be configured to operate memory 604. In some other embodiments, memory 604 may be integrated into processor 602. Processor 602 may be configured to execute computer-readable instructions stored in memory 604 to cause UE 600 to perform various functions of this disclosure.

[0086] Memory 604 may include volatile or non-volatile memory. Memory 604 may store computer-readable, computer-executable code containing instructions that, when executed by processor 602, cause UE 600 to perform the various functions described herein. The code may be stored in a non-transitory computer-readable medium, such as memory 604 or another type of memory. Computer-readable medium includes both non-transitory computer storage media and communication media, wherein the communication media includes any media that facilitates the transfer of a computer program from one place to another. Non-transitory storage media may be any available media accessible by a general-purpose or special-purpose computer.

[0087] In some implementations, processor 602 and memory 604 coupled to processor 602 may be configured to cause UE 600 to perform one or more of the functions described herein (e.g., instructions stored in memory 604 are executed by processor 602). For example, processor 602 may support wireless communication at UE 600 according to an example disclosed herein. UE 600 may be configured to support a means for: determining at least one first timeslot for receiving a paging frame; and receiving a paging message from a network entity during at least one paging timing of the paging frame.

[0088] Controller 606 manages the input and output signals of UE 600. Controller 606 can also manage peripheral devices not integrated into UE 600. In some embodiments, controller 606 may utilize an operating system such as iOS®, ANDROID®, WINDOWS®, or other operating systems. In some embodiments, controller 606 may be implemented as part of processor 602.

[0089] In some embodiments, UE 600 may include at least one transceiver 608. In other embodiments, UE 600 may have more than one transceiver 608. Transceiver 608 may represent a wireless transceiver. Transceiver 608 may include one or more receiver chains 610, one or more transmitter chains 612, or a combination thereof.

[0090] Receiver chain 610 may be configured to receive signals (e.g., control information, data, packets) via wireless media. For example, receiver chain 610 may include one or more antennas for receiving signals over the air or wireless media. Receiver chain 610 may include at least one amplifier (e.g., a low-noise amplifier (LNA)) configured to amplify the received signal. Receiver chain 610 may include at least one demodulator configured to demodulate the received signal and obtain transmitted data by reversing the modulation technique applied during signal transmission. Receiver chain 610 may include at least one decoder for decoding the demodulated signal to receive transmitted data.

[0091] Transmitter chain 612 can be configured to generate and transmit signals (e.g., control information, data, packets). Transmitter chain 612 may include at least one modulator for modulating data onto a carrier signal, preparing the signal for transmission over a wireless medium. The at least one modulator may be configured to support one or more techniques, such as amplitude modulation (AM), frequency modulation (FM), or digital modulation schemes like phase shift keying (PSK) or quadrature amplitude modulation (QAM). Transmitter chain 612 may also include at least one power amplifier configured to amplify the modulated signal to an appropriate power level suitable for transmission over a wireless medium. Transmitter chain 612 may also include one or more antennas for transmitting the amplified signal into the air or wireless medium.

[0092] Figure 7An example of a processor 700 according to aspects of this disclosure is described. Processor 700 may be an example of a processor configured to perform various operations according to the examples described herein. Processor 700 may include a controller 702 configured to perform various operations according to the examples described herein. Processor 700 may optionally include at least one memory 704, which may be, for example, an L1 / L2 / L3 cache. Additionally or alternatively, processor 700 may optionally include one or more arithmetic logic units (ALUs) 706. One or more of these components may be electronically communicated or otherwise coupled (e.g., operatively, communicatively, functionally, electronically, electrically) via one or more interfaces (e.g., buses).

[0093] Processor 700 may be a processor chipset and includes a protocol stack (e.g., a software stack) executed by the processor chipset to perform various operations (e.g., receive, acquire, retrieve, transmit, output, forward, store, determine, identify, access, write, read) according to the examples described herein. The processor chipset may include one or more cores, one or more caches (e.g., memory local to the processor chipset (e.g., processor 700) or included in the processor chipset) or other memory (e.g., random access memory (RAM), read-only memory (ROM), dynamic RAM (DRAM), synchronous dynamic RAM (SDRAM), static RAM (SRAM), ferroelectric RAM (FeRAM), magnetic RAM (MRAM), resistive RAM (RRAM), flash memory, phase-change memory (PCM), and others).

[0094] Controller 702 can be configured to manage and coordinate various operations of processor 700 (e.g., signaling, receiving, acquiring, retrieving, transmitting, outputting, forwarding, storing, determining, identifying, accessing, writing, and reading) to enable processor 700 to support various operations according to the examples described herein. For example, controller 702 can operate as a control unit of processor 700, generating control signals that manage the operation of various components of processor 700. These control signals include enabling or disabling functional units, selecting data paths, initiating memory accesses, and coordinating operation timing.

[0095] Controller 702 may be configured to fetch (e.g., fetch, retrieve, receive) instructions from memory 704 and determine subsequent instructions to be executed to enable processor 700 to support various operations according to the examples described herein. Controller 702 may be configured to track the memory addresses of instructions associated with memory 704. Controller 702 may be configured to decode instructions to determine the operations to be performed and the operands involved. For example, controller 702 may be configured to interpret instructions and determine control signals to be output to other components of processor 700 to enable processor 700 to support various operations according to the examples described herein. Alternatively or additionally, controller 702 may be configured to manage data flow within processor 700. Controller 702 may be configured to control data transfers between registers, arithmetic logic unit (ALU), and other functional units of processor 700.

[0096] Memory 704 may include one or more caches (e.g., memory local to processor 700 or included in processor 700) or other memories, such as RAM, ROM, DRAM, SDRAM, SRAM, MRAM, flash memory, etc. In some embodiments, memory 704 may reside within or on the processor chipset (e.g., local to processor 700). In some other embodiments, memory 704 may reside outside the processor chipset (e.g., remote from processor 700).

[0097] Memory 704 may store computer-readable, computer-executable code containing instructions that, when executed by processor 700, cause processor 700 to perform the various functions described herein. The code may be stored in a non-transitory computer-readable medium, such as system memory or another type of memory. Controller 702 and / or processor 700 may be configured to execute computer-readable instructions stored in memory 704 to cause processor 700 to perform various functions. For example, processor 700 and / or controller 702 may be coupled to or coupled to memory 704, and processor 700, controller 702, and memory 704 may be configured to perform the various functions described herein. In some instances, processor 700 may include multiple processors, and memory 704 may include multiple memories. One or more of the multiple processors may be coupled to one or more of the multiple memories, which may be individually or collectively configured to perform the various functions described herein.

[0098] One or more ALU 706s may be configured to support various operations according to the examples described herein. In some embodiments, one or more ALU 706s may reside within or on a processor chipset (e.g., processor 700). In some other embodiments, one or more ALU 706s may reside outside the processor chipset (e.g., processor 700). One or more ALU 706s may perform one or more calculations on data, such as addition, subtraction, multiplication, and division. For example, one or more ALU 706s may receive input operands and an opcode that determines the operation to be performed. One or more ALU 706s may be configured with various logic and arithmetic circuitry, including adders, subtractors, shifters, and logic gates, to process and manipulate data according to the operation. Alternatively, one or more ALU 706s may support logical operations such as AND, OR, XOR, NOR, and NAND, enabling one or more ALU 706s to handle conditional operations, comparisons, and bitwise operations.

[0099] Processor 700 may support wireless communication according to examples disclosed herein. Processor 700 may be configured or operable to support a means for: determining at least one first time slot for receiving a paging frame; and receiving a paging message from a network entity during at least one paging opportunity of the paging frame.

[0100] Figure 8 This describes an example of an NE 800 according to aspects of this disclosure. The NE 800 may include a processor 802, a memory 804, a controller 806, and a transceiver 808. The processor 802, memory 804, controller 806, or transceiver 808, or various combinations thereof, or various components thereof, may be examples of components for performing the various aspects of this disclosure as described herein. These components may be coupled via one or more interfaces (e.g., operatively ground, communicative ground, functional ground, electronic ground, electrical ground).

[0101] Processor 802, memory 804, controller 806, or transceiver 808, or various combinations or components thereof, may be implemented in hardware (e.g., a circuit system). The hardware may be a processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), or other programmable logic device, or any combination thereof configured to or otherwise support components for performing the functions described in this disclosure.

[0102] Processor 802 may include intelligent hardware devices (e.g., a general-purpose processor, DSP, CPU, ASIC, FPGA, or any combination thereof). In some embodiments, processor 802 may be configured to operate memory 804. In some other embodiments, memory 804 may be integrated into processor 802. Processor 802 may be configured to execute computer-readable instructions stored in memory 804 to cause NE 800 to perform various functions of this disclosure.

[0103] Memory 804 may comprise volatile or non-volatile memory. Memory 804 may store computer-readable, computer-executable code containing instructions that, when executed by processor 802, cause NE 800 to perform the various functions described herein. The code may be stored in a non-transitory computer-readable medium, such as memory 804 or another type of memory. Computer-readable medium includes both non-transitory computer storage media and communication media, wherein the communication media includes any media that facilitates the transfer of a computer program from one place to another. Non-transitory storage media may be any available media accessible by a general-purpose or special-purpose computer.

[0104] In some embodiments, processor 802 and memory 804 coupled to processor 802 may be configured to cause NE 800 to perform one or more of the functions described herein (e.g., instructions stored in memory 804 are executed by processor 802). For example, processor 802 may support wireless communication at NE 800 according to an example disclosed herein. NE 800 may be configured to support a component for: determining at least one first time slot for transmitting a paging frame to a UE; and transmitting a paging message to a UE during at least one PO of the paging frame, wherein at least one PO occurs during at least one active duration of a DRX cycle associated with the UE and at least one active duration of a DTX cycle associated with the cell.

[0105] Controller 806 manages the input and output signals of NE 800. Controller 806 can also manage peripheral devices not integrated into NE 800. In some embodiments, controller 806 may utilize an operating system such as iOS®, ANDROID®, WINDOWS®, or other operating systems. In some embodiments, controller 806 may be implemented as part of processor 802.

[0106] In some embodiments, NE 800 may include at least one transceiver 808. In other embodiments, NE 800 may have more than one transceiver 808. Transceiver 808 may represent a wireless transceiver. Transceiver 808 may include one or more receiver chains 810, one or more transmitter chains 812, or a combination thereof.

[0107] Receiver chain 810 may be configured to receive signals (e.g., control information, data, packets) via wireless media. For example, receiver chain 810 may include one or more antennas for receiving signals over the air or wireless media. Receiver chain 810 may include at least one amplifier (e.g., a low-noise amplifier (LNA)) configured to amplify the received signal. Receiver chain 810 may include at least one demodulator configured to demodulate the received signal and obtain transmitted data by reversing the modulation technique applied during signal transmission. Receiver chain 810 may include at least one decoder for decoding the demodulated signal to receive transmitted data.

[0108] Transmitter chain 812 can be configured to generate and transmit signals (e.g., control information, data, packets). Transmitter chain 812 may include at least one modulator for modulating data onto a carrier signal, preparing the signal for transmission over a wireless medium. The at least one modulator may be configured to support one or more techniques, such as amplitude modulation (AM), frequency modulation (FM), or digital modulation schemes like phase shift keying (PSK) or quadrature amplitude modulation (QAM). Transmitter chain 812 may also include at least one power amplifier configured to amplify the modulated signal to an appropriate power level suitable for transmission over a wireless medium. Transmitter chain 812 may also include one or more antennas for transmitting the amplified signal into the air or wireless medium.

[0109] Figure 9 A flowchart illustrating a method according to an aspect of this disclosure is provided. The operation of the method can be implemented by a UE as described herein. In some embodiments, the UE can execute a set of instructions to control the functional elements of the UE to perform the described functions.

[0110] At 902, the method may include determining at least one first timeslot for receiving a paging frame. The operation of 902 may be performed according to the examples described herein. In some embodiments, aspects of the operation of 902 may be as described in references... Figure 6 The UE execution is described. In an embodiment, at least one first time slot overlaps at least partially with at least one activity duration of a DRX cycle associated with the UE and at least one activity duration of a DTX cycle associated with a network entity (e.g., the activity duration of a cell).

[0111] At 904, the method may include receiving a paging message from a network entity during at least one PO of a paging frame. The at least one PO may occur during at least one activity duration of a DRX cycle associated with the UE and at least one activity duration of a DTX cycle associated with the network entity. The operation of 904 may be performed according to the examples described herein. In some embodiments, aspects of the operation of 904 may be as described in references... Figure 6The UE execution described.

[0112] In an embodiment, a first subset of POs in a set of POs is associated with a set of one or more frequencies and at least one first time slot, a second subset of POs in a set of POs is associated with a set of one or more frequencies and at least one second time slot different from at least one first time slot, at least one PO is associated with a first subset of POs or a second subset of POs, and at least one PO is associated with at least one frequency in a set of one or more frequencies.

[0113] In an embodiment, the start of at least one activity duration of a DRX cycle associated with the UE may be aligned with the start of at least one activity duration of a DTX cycle associated with a network entity.

[0114] In some embodiments, the method may further include determining a set of POPs for the paging frame.

[0115] In an embodiment, the UE is configured to determine that at least one activity duration of a DRX cycle associated with the UE partially overlaps with at least one activity duration of a DTX cycle associated with a network entity, and / or to determine that at least one activity duration of a DRX cycle associated with the UE completely overlaps with at least one activity duration of a DTX cycle associated with a network entity. Cell activity durations can be indicated to the UE by the base station. When the UE activity duration does not completely overlap with the cell activity duration, a new I-DRX cycle that at least partially overlaps with the active cell duration can be activated at the UE.

[0116] At 906, the method may include selecting a PO from a set of POs in the paging frame. The operation of 906 may be performed according to the examples described herein. In some implementations, aspects of the operation of 906 may be as described in the references... Figure 6 The UE execution described.

[0117] In an embodiment, at least one RO is associated with at least one frequency from a set of one or more frequencies. After selecting a PO, the UE may transmit at least one first random access message during at least one RO and on at least one frequency from a set of one or more frequencies.

[0118] The UE can be configured to receive an indication associated with a lookup table, which indicates one or more of the following: the frequency indicator of each of one or more POs in a paging frame, one or more timeslots associated with one or more POs in a paging frame, or the timeslot number of each of one or more timeslots in a paging frame.

[0119] In an embodiment, the UE is further configured to determine at least one second PO from a set of one or more POs that occur outside of at least one activity duration of a DRX cycle associated with the UE and at least one activity duration of a DTX cycle associated with a network entity, and to skip at least one second PO based at least in part on at least one second PO from a set of one or more POs that occur outside of at least one activity duration of a DRX cycle associated with the UE and at least one activity duration of a DTX cycle associated with a network entity.

[0120] At 908, the method may include monitoring or receiving at least one second random access message from the network entity in response to the first random access message during the activity duration of the DTX cycle associated with the network entity. In some embodiments, aspects of the operation of 908 may be as described in reference... Figure 6 The UE execution described.

[0121] For example, the ra-ResponseWindow can be started at the first PDCCH timing configured with RA-RNTI (Random Access RNTI), starting from the end of the random access preamble transmission during the cell's active time. The ra-ResponseWindow can skip the DTX / DRX periods of inactive cells and be calculated during the cell's active time.

[0122] At 910, the method may include determining a timing offset for the paging frame and applying the timing offset to the paging frame. The operation of 910 may be performed according to the examples described herein. In some implementations, aspects of the operation of 910 may be as described in the references... Figure 6 The UE execution is described. In an embodiment, at least one PO of the paging frame occurs at least in part during at least one activity duration of a DRX cycle associated with the UE and at least one activity duration of a DTX cycle associated with the network entity, based on a timing offset of the paging frame.

[0123] At 912, the method may include receiving the DCI via the PDCCH and decoding the DCI using the RNTI associated with the paging group containing the UE. The operation of 912 may be performed according to the examples described herein. In some embodiments, aspects of the operation of 906 may be as described in references... Figure 6 The UE execution described.

[0124] In an embodiment, the decoded DCI indicates at least one frequency sub-band and at least one first time slot for transmitting paging messages. The RNTI associated with the paging group can be selected from a set of RNTIs reserved for the paging group.

[0125] It should be noted that the method described herein describes one possible implementation, and the operation and steps may be rearranged or modified in other ways, and other implementations are possible.

[0126] Figure 10 A flowchart illustrating a method according to an aspect of this disclosure is provided. The operation of the method may be implemented by an NE as described herein. In some embodiments, the NE may execute a set of instructions to control the functional elements of the NE to perform the described functions.

[0127] At 1002, the method may include determining at least one first timeslot for transmitting a paging frame to the UE. The operation of 1002 may be performed according to the examples described herein. In some embodiments, aspects of the operation of 1002 may be as described in references... Figure 7 The described NE execution.

[0128] In an embodiment, at least one first time slot is based at least in part on at least one activity duration of a DRX cycle associated with the UE or at least one activity duration of a DTX cycle associated with the base station, or a combination thereof. In an example, the first time slot occurs during both the UE's active DRX duration and the base station's active DTX duration.

[0129] At 1004, the method may include transmitting a paging message to the UE during at least one PO of the paging frame. The operation of 1004 may be performed according to the examples described herein. In some embodiments, aspects of the operation of 1004 may be as described in references... Figure 7 The described NE execution.

[0130] In an embodiment, at least one PO occurs during at least one activity duration of a DRX cycle associated with the UE and at least one activity duration of a DTX cycle associated with the base station.

[0131] At 1006, the method may include generating a paging frame based on one or more of a DRX cycle associated with the UE or a DTX cycle associated with the base station. The operation of 1006 may be performed according to the examples described herein. In some implementations, aspects of the operation of 1006 may be as described in references... Figure 7 The described NE execution.

[0132] In an embodiment, at least one first time slot overlaps with at least one activity duration of either the DRX cycle associated with the UE or the DTX cycle associated with the base station, depending on one or more of these cycles.

[0133] At 1008, the method may include scrambling the DCI using the RNTI associated with the paging group containing the UE. The operation of 1006 may be performed according to the examples described herein. In some implementations, aspects of the operation of 1006 may be as described in references... Figure 7 The described NE execution.

[0134] At 1010, the method may include transmitting DCI scrambled with RNTI to the UE in the PDCCH. The operation of 1006 may be performed according to the examples described herein. In some implementations, aspects of the operation of 1006 may be as described in the references... Figure 7 The described NE execution. The DCI scrambled with RNTI can indicate at least one frequency sub-band and at least one first time slot associated with the paging message.

[0135] It should be noted that the method described herein describes one possible implementation, and the operation and steps may be rearranged or modified in other ways, and other implementations are possible.

[0136] The description herein is provided to enable those skilled in the art to make or use this disclosure. Various modifications to this disclosure will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the scope of this disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but should be given the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A user equipment (UE) for wireless communication, comprising: At least one memory; and At least one processor, coupled to and configured to enable the UE to: Determine at least one first time slot for receiving paging frames, wherein the at least one first time slot overlaps at least partially with at least one activity duration of a discontinuous receive DRX cycle associated with the UE and at least one activity duration of a discontinuous transmit DTX cycle associated with a network entity; and A paging message is received from the network entity during at least one paging opportunity (PO) of the paging frame, wherein the at least one PO occurs during at least one activity duration of the DRX cycle associated with the UE and at least one activity duration of the DTX cycle associated with the network entity.

2. The UE of claim 1, wherein the at least one processor is configured to cause the UE to: Select at least one PO from a set of POs of the paging frame. The first subset of the POs in the set of POs is associated with a set of one or more frequencies and the at least one first time slot. The second subset of the POs in the set of POs is associated with the set of one or more frequencies and at least one second time slot different from the at least one first time slot. Wherein at least one PO is associated with a first subset of the POs or a second subset of the POs, and The at least one PO is associated with at least one frequency in the set of one or more frequencies.

3. The UE of claim 2, wherein the at least one processor is configured to cause the UE to: The at least one RO is selected at least in part based on a mapping between the at least one PO and at least one random access channel timing RO, wherein the at least one RO is associated with at least one frequency from the set of one or more frequencies; and During the at least one RO and on at least one frequency in the set of one or more frequencies, at least one first random access message is transmitted.

4. The UE of claim 2, wherein the at least one processor is configured to cause the UE to: Determine the timing offset of the paging frame; and Apply the timing offset to the paging frame. The at least one PO of the paging frame occurs at least in part based on the timing offset of the paging frame during at least one activity duration of the DRX cycle associated with the UE and the at least one activity duration of the DTX cycle associated with the network entity.

5. The UE of claim 3, wherein the at least one processor is configured to cause the UE to: During the activity duration of the DTX cycle associated with the network entity, monitor or receive at least one second random access message from the network entity in response to the at least one first random access message.

6. The UE of claim 1, wherein the at least one processor is configured to cause the UE to: Downlink control information (DCI) is received via the physical downlink control channel (PDCCH); and The DCI is decoded using the Radio Network Temporary Identifier (RNTI) associated with the paging group containing the UE.

7. The UE of claim 6, wherein the decoded DCI indicates at least one frequency sub-band and the at least one first time slot for transmitting the paging message.

8. The UE of claim 6, wherein the RNTI associated with the paging group is selected from a set of RNTIs reserved for the paging group.

9. The UE of claim 1, wherein the at least one processor is configured to cause the UE to: It is determined that at least one activity duration of the DRX cycle associated with the UE overlaps with at least one activity duration of the DTX cycle associated with the network entity.

10. A processor for wireless communication, comprising: At least one controller, coupled to at least one memory and configured to enable the processor to: Determine at least one first time slot for receiving paging frames, wherein the at least one first time slot overlaps at least partially with at least one activity duration of a discontinuous receive DRX cycle associated with a user equipment (UE) and at least one activity duration of a discontinuous transmit DTX cycle associated with a network entity. and A paging message is received from the network entity during at least one paging opportunity (PO) of the paging frame, wherein the at least one PO occurs during at least one activity duration of the DRX cycle associated with the UE and at least one activity duration of the DTX cycle associated with the network entity.

11. A method performed by a user equipment (UE), the method comprising: Determine at least one first time slot for receiving paging frames, wherein the at least one first time slot overlaps at least partially with at least one activity duration of a discontinuous receive DRX cycle associated with the UE and at least one activity duration of a discontinuous transmit DTX cycle associated with a network entity; and A paging message is received from the network entity during at least one paging opportunity (PO) of the paging frame, wherein the at least one PO occurs during at least one activity duration of the DRX cycle associated with the UE and at least one activity duration of the DTX cycle associated with the network entity.

12. The method of claim 11, further comprising: Select at least one PO from a set of POs of the paging frame. The first subset of the POs in the set of POs is associated with a set of one or more frequencies and the at least one first time slot. The second subset of the POs in the set of POs is associated with the set of one or more frequencies and at least one second time slot different from the at least one first time slot. Wherein at least one PO is associated with a first subset of the POs or a second subset of the POs, and The at least one PO is associated with at least one frequency in the set of one or more frequencies.

13. The method of claim 12, further comprising: The at least one RO is selected at least in part based on a mapping between the at least one PO and at least one random access channel timing RO, wherein the at least one RO is associated with at least one frequency in the set of one or more frequencies; and During the at least one RO and on at least one frequency in the set of one or more frequencies, at least one first random access message is transmitted.

14. The method of claim 12, further comprising: Determine the timing offset of the paging frame; and Apply the timing offset to the paging frame. The at least one PO of the paging frame occurs at least in part based on the timing offset of the paging frame during at least one activity duration of the DRX cycle associated with the UE and the at least one activity duration of the DTX cycle associated with the network entity.

15. The method of claim 13, further comprising: Monitor or receive at least one second random access message from the network entity in response to the at least one first random access message during the activity duration of the DTX cycle associated with the network entity.

16. The method of claim 11, further comprising: Downlink control information (DCI) is received via the physical downlink control channel (PDCCH). and The DCI is decoded using the Radio Network Temporary Identifier (RNTI) associated with the paging group containing the UE.

17. The method of claim 16, wherein the decoded DCI indicates at least one frequency sub-band for transmitting the paging message and the at least one first time slot, and The RNTI associated with the paging group is selected from a set of RNTIs reserved for the paging group.

18. A base station for wireless communication, comprising: At least one memory; and At least one processor, coupled to and configured to enable the base station to: Determine at least one first time slot for transmitting a paging frame to a user equipment (UE), wherein the at least one first time slot is based at least in part on at least one active duration of a discontinuous receive DRX cycle associated with the UE or at least one active duration of a discontinuous transmit DTX cycle associated with the base station, or a combination thereof. and A paging message is transmitted to the UE during at least one paging opportunity (PO) of the paging frame, wherein the at least one PO occurs during at least one activity duration of the DRX cycle associated with the UE and at least one activity duration of the DTX cycle associated with the base station.

19. The base station of claim 18, wherein the at least one processor is configured to cause the base station to: The paging frame is generated based on one or more of the DRX cycle associated with the UE or the DTX cycle associated with the base station. The at least one first time slot overlaps with one or more of the at least one activity duration of the DRX cycle associated with the UE or the at least one activity duration of the DTX cycle associated with the base station, depending on one or more of the DRX cycle associated with the UE or the DTX cycle associated with the base station.

20. The base station of claim 18, wherein the at least one processor is configured to cause the base station to: The downlink control information (DCI) is scrambled using the radio network temporary identifier (RNTI) associated with the paging group containing the UE; and In the Physical Downlink Control Channel (PDCCH), the DCI scrambled with the RNTI is transmitted to the UE. The DCI scrambled with the RNTI indicates at least one frequency sub-band and the at least one first time slot associated with the paging message.

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