Inactive interval for handling of paging message
By delaying the RRC connection release based on an inactive interval threshold, the UE effectively handles erroneous paging messages, preventing service interruptions and ensuring proper re-synchronization with the network.
Patent Information
- Application Number
- PCT/CN2023/108840
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-07-24
- Publication Date
- 2025-01-30
AI Technical Summary
In wireless communication systems, erroneous paging messages sent to user equipment (UE) in an RRC connected state can cause unintended connection releases, leading to interruptions in service, such as voice call drops or data disruptions.
The UE is configured to delay the release of the RRC connected state if the inactive interval associated with the UE does not satisfy a configurable inactive interval threshold, thereby distinguishing between erroneous paging messages and those sent due to network and UE unsynchronization.
This approach prevents unnecessary interruptions in service by maintaining the RRC connection when the paging message is likely erroneous, while allowing re-synchronization when the network and UE are truly unsynchronized.
Smart Images

Figure CN2023108840_30012025_PF_FP_ABST
Abstract
Description
INACTIVE INTERVAL FOR HANDLING OF PAGING MESSAGE
[0001] FIELD OF THE DISCLOSURE
[0002] Aspects of the present disclosure generally relate to wireless communication and specifically, to techniques and apparatuses for handling a paging message using an inactive interval.BACKGROUND
[0003] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts. Typical wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources (for example, bandwidth or transmit power) . Examples of such multiple-access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and Long Term Evolution (LTE) . LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP) .
[0004] The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different UEs to communicate on a municipal, national, regional, or global level. New Radio (NR) , which may be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by the 3GPP. NR is designed to better support mobile broadband internet access by improving spectral efficiency, lowering costs, improving services, making use of new spectrum, and better integrating with other open standards using orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink, using CP-OFDM or single-carrier frequency division multiplexing (SC-FDM) (also known as discrete Fourier transform spread OFDM (DFT-s-OFDM) ) on the uplink, as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR, and other radio access technologies remain useful.
[0005] A user equipment (UE) may monitor the paging radio network temporary identifier (P-RNTI) over downlink control information (DCI) during a radio resource control (RRC) connected state for only short messages. However, in some scenarios, a network can send a paging message to an RRC connected UE. The network sending the paging message while the UE is in the RRC connected state may indicate that the network and the UE are unsynchronized. For example, the network sending the paging message while the UE is in the RRC connected state may indicate that the network has identified the UE as not being in an RRC connected state (for example, the network has identified the UE as being in an RRC idle state or in an RRC inactive state) . As a result, the paging message may prompt the UE to blindly perform a connection release (for example, a local RRC connection release) , move to RRC idle state, and re-try a registration procedure to re-synchronize with network (for example, such that the network identifies the UE as being in an RRC connected state when the UE is in the RRC connected state) .
[0006] However, in some other scenarios, the paging message sent to the RRC connected UE may have been sent in error. For example, the network may send the paging message even though the network and the UE are synchronized (for example, even though the network has identified the UE as being in an RRC connected state) . In response to the UE receiving the erroneous paging message, the UE may blindly address (for example, process) the paging message by triggering the connection release (for example, a radio link failure (RLF) procedure) . Thus, the UE may switch to RRC idle state to re-synchronize with the network via a non-access stratum (NAS) triggering registration request. Performing a connection release in response to a paging message sent in error may interrupt an RRC connection. For example, receiving an erroneous paging message during an active voice over new radio (VoNR) voice call can prompt the UE to blindly release the RRC connection, thereby interrupting the voice call. For example, the connection release may cause intermittent voice breaks, silence during the call, delays, or call drops, among other examples.SUMMARY
[0007] Some aspects described herein relate to a user equipment (UE) for wireless communication. The UE may include a processing system that includes one or more processors and one or more memories coupled with the one or more processors. The processing system may be configured to cause the UE to receive, while the UE is in a radio resource control (RRC) connected state, a grant for a transmission that is to occur at a grant time. The processing system may be configured to cause the UE to receive, while the UE is in the RRC connected state, a paging message. The processing system may be configured to cause the UE to delay, while an inactive interval associated with the UE does not satisfy a configurable inactive interval threshold, release of the RRC connected state.
[0008] Some aspects described herein relate to a method of wireless communication by a UE. The method may include receiving, while the UE is in an RRC connected state, a grant for a transmission that is to occur at a grant time. The method may include receiving, while the UE is in the RRC connected state, a paging message. The method may include delaying, while an inactive interval associated with the UE does not satisfy a configurable inactive interval threshold, release of the RRC connected state.
[0009] Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a UE. The set of instructions, when executed by one or more processors of the UE, may cause the UE to receive, while the UE is in an RRC connected state, a grant for a transmission that is to occur at a grant time. The set of instructions, when executed by one or more processors of the UE, may cause the UE to receive, while the UE is in the RRC connected state, a paging message. The set of instructions, when executed by one or more processors of the UE, may cause the UE to delay, while an inactive interval associated with the UE does not satisfy a configurable inactive interval threshold, release of the RRC connected state.
[0010] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving, while the apparatus is in an RRC connected state, a grant for a transmission that is to occur at a grant time. The apparatus may include means for receiving, while the apparatus is in the RRC connected state, a paging message. The apparatus may include means for delaying, while an inactive interval associated with the apparatus does not satisfy a configurable inactive interval threshold, release of the RRC connected state.
[0011] Aspects generally include a method, apparatus, system, computer program product, non-transitory computer-readable medium, user equipment, base station, network node, network entity, wireless communication device, or processing system as substantially described with reference to and as illustrated by the drawings and specification.
[0012] The foregoing has outlined rather broadly the features and technical advantages of examples in accordance with the disclosure in order that the detailed description that follows may be better understood. Additional features and advantages will be described hereinafter. The conception and specific examples disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. Characteristics of the concepts disclosed herein, both their organization and method of operation, together with associated advantages will be better understood from the following description when considered in connection with the accompanying figures. Each of the figures is provided for the purposes of illustration and description, and not as a definition of the limits of the claims.BRIEF DESCRIPTION OF THE DRAWINGS
[0013] So that the above-recited features of the present disclosure can be understood in detail, a more particular description, briefly summarized above, may be had by reference to aspects, some of which are illustrated in the appended drawings. It is to be noted, however, that the appended drawings illustrate only some typical aspects of this disclosure and are therefore not to be considered limiting of its scope, for the description may admit to other equally effective aspects. The same reference numbers in different drawings may identify the same or similar elements.
[0014] Figure 1 is a diagram illustrating an example of a wireless network in accordance with the present disclosure.
[0015] Figure 2 is a diagram illustrating an example network node in communication with a user equipment (UE) in a wireless network in accordance with the present disclosure.
[0016] Figure 3 is a diagram illustrating an example disaggregated base station architecture in accordance with the present disclosure.
[0017] Figure 4 is a diagram illustrating an example associated with paging messages in accordance with the present disclosure.
[0018] Figure 5 is a diagram illustrating an example associated with handling a paging message received during an RRC connected state in accordance with the present disclosure.
[0019] Figure 6 is a diagram illustrating an example associated with determining how to handle a paging message received during an RRC connected state in accordance with the present disclosure.
[0020] Figure 7 is a flowchart illustrating an example process performed, for example, by a UE that supports handling a paging message using an inactive interval in accordance with the present disclosure.
[0021] Figure 8 is a diagram of an example apparatus for wireless communication that supports handling a paging message using an inactive interval in accordance with the present disclosure.
[0022] Figure 9 is a diagram of an example apparatus for wireless communication that supports handling a paging message using an inactive interval in accordance with the present disclosure.DETAILED DESCRIPTION
[0023] Various aspects of the disclosure are described more fully hereinafter with reference to the accompanying drawings. This disclosure may, however, be embodied in many different forms and are not to be construed as limited to any specific structure or function presented throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. One skilled in the art may appreciate that the scope of the disclosure is intended to cover any aspect of the disclosure disclosed herein, whether implemented independently of or combined with any other aspect of the disclosure. For example, an apparatus may be implemented or a method may be practiced using any quantity of the aspects set forth herein. In addition, the scope of the disclosure is intended to cover such an apparatus or method which is practiced using other structure, functionality, or structure and functionality in addition to or other than the various aspects of the disclosure set forth herein. Any aspect of the disclosure disclosed herein may be embodied by one or more elements of a claim.
[0024] Several aspects of telecommunication systems will now be presented with reference to various apparatuses and techniques. These apparatuses and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, or algorithms (collectively referred to as “elements” ) . These elements may be implemented using hardware, software, or a combination of hardware and software. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system.
[0025] Various aspects relate generally to handling of paging messages. Some aspects more specifically relate to delaying release of a radio resource control (RRC) connection in response to a paging message received by a user equipment (UE) in an RRC connected state. In some aspects, the UE monitors how long the network has been inactive and, after a configurable amount of time, releases the RRC connection. In some examples, the UE may receive a grant from the network before the configurable amount of time has elapsed, and the UE may ignore the paging message (for example, the UE may determine not to release the RRC connection at any point in response to the paging message) . In some examples, the UE may not receive a grant from the network before the configurable amount of time has elapsed, and the UE may release the RRC connection.
[0026] Particular aspects of the subject matter described in this disclosure can be implemented to realize one or more of the following potential advantages. In some examples, the described techniques can be used to enable the UE to delay release of an RRC connected state in case the paging message was sent in error, thereby preventing interruptions in service. For example, by efficiently handling a mobile terminated (MT) paging message in accordance with the configurable amount of time, a UE in an RRC connected state may preserve an ongoing voice over Long Term Evolution (VoLTE) call and associated call performance, Long Term Evolution (LTE) data traffic, an ongoing voice over New Radio (VoNR) call and associated call performance, New Radio (NR) data traffic, an ongoing 6G voice call and associated call performance, 6G data traffic, or the like. The UE receiving the grant from the network within the configurable amount of time may indicate that the network and the UE are synchronized (for example, the paging message was sent in error) , and, therefore, the UE may maintain the existing RRC connection. The UE not receiving any more grants from the network within the configurable amount of time may indicate that the network and the UE are not synchronized (for example, the connection with the UE may have already been released on the network side due to the UE and the network becoming unsynchronized) , and, therefore, the UE may release the RRC connection and re-register with the network to re-synchronize with the network. Thus, the UE may differentiate between, and handle differently, erroneous paging messages and paging message sent because the network and the UE are not synchronized. Furthermore, the configurable amount of time may be configured to enable earlier re-synchronization with the network (for example, by shortening the configurable amount of time) .
[0027] Figure 1 is a diagram illustrating an example of a wireless network in accordance with the present disclosure. The wireless network 100 may be or may include elements of a 5G (for example, NR) network or a 4G (for example, LTE) network, among other examples. The wireless network 100 may include one or more network nodes 110 (shown as a network node (NN) 110a, a network node 110b, a network node 110c, and a network node 110d) , a UE 120 or multiple UEs 120 (shown as a UE 120a, a UE 120b, a UE 120c, a UE 120d, and a UE 120e) , or other network entities. A network node 110 is an entity that communicates with UEs 120. As shown, a network node 110 may include one or more network nodes. For example, a network node 110 may be an aggregated network node, meaning that the aggregated network node is configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node (for example, within a single device or unit) . As another example, a network node 110 may be a disaggregated network node (sometimes referred to as a disaggregated base station) , meaning that the network node 110 is configured to utilize a protocol stack that is physically or logically distributed among two or more nodes (such as one or more central units (CUs) , one or more distributed units (DUs) , or one or more radio units (RUs) ) .
[0028] In some examples, a network node 110 is or includes a network node that communicates with UEs 120 via a radio access link, such as an RU. In some examples, a network node 110 is or includes a network node that communicates with other network nodes 110 via a fronthaul link or a midhaul link, such as a DU. In some examples, a network node 110 is or includes a network node that communicates with other network nodes 110 via a midhaul link or a core network via a backhaul link, such as a CU. In some examples, a network node 110 (such as an aggregated network node 110 or a disaggregated network node 110) may include multiple network nodes, such as one or more RUs, one or more CUs, or one or more DUs. A network node 110 may include, for example, an NR network node, an LTE network node, a Node B, an eNB (for example, in 4G) , a gNB (for example, in 5G) , an access point, or a transmission reception point (TRP) , a DU, an RU, a CU, a mobility element of a network, a core network node, a network element, a network equipment, and / or a RAN node. In some examples, the network nodes 110 may be interconnected to one another or to one or more other network nodes 110 in the wireless network 100 through various types of fronthaul, midhaul, or backhaul interfaces, such as a direct physical connection, an air interface, or a virtual network, using any suitable transport network.
[0029] Each network node 110 may provide communication coverage for a particular geographic area. In the Third Generation Partnership Project (3GPP) , the term “cell” can refer to a coverage area of a network node 110 or a network node subsystem serving this coverage area, depending on the context in which the term is used.
[0030] A network node 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, or another type of cell. A macro cell may cover a relatively large geographic area (for example, several kilometers in radius) and may allow unrestricted access by UEs 120 with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs 120 with service subscription. A femto cell may cover a relatively small geographic area (for example, a home) and may allow restricted access by UEs 120 having association with the femto cell (for example, UEs 120 in a closed subscriber group (CSG) ) . A network node 110 for a macro cell may be referred to as a macro network node. A network node 110 for a pico cell may be referred to as a pico network node. A network node 110 for a femto cell may be referred to as a femto network node or an in-home network node.
[0031] The wireless network 100 may be a heterogeneous network that includes network nodes 110 of different types, such as macro network nodes, pico network nodes, femto network nodes, or relay network nodes. These different types of network nodes 110 may have different transmit power levels, different coverage areas, or different impacts on interference in the wireless network 100. For example, macro network nodes may have a high transmit power level (for example, 5 to 40 watts) whereas pico network nodes, femto network nodes, and relay network nodes may have lower transmit power levels (for example, 0.1 to 2 watts) . In the example shown in Figure 1, the network node 110a may be a macro network node for a macro cell 102a, the network node 110b may be a pico network node for a pico cell 102b, and the network node 110c may be a femto network node for a femto cell 102c. A network node may support one or multiple (for example, three) cells. In some examples, a cell may not necessarily be stationary, and the geographic area of the cell may move in accordance with the location of a network node 110 that is mobile (for example, a mobile network node) .
[0032] In some aspects, the terms “base station” or “network node” may refer to an aggregated base station, a disaggregated base station, an integrated access and backhaul (IAB) node, a relay node, or one or more components thereof. For example, in some aspects, “base station” or “network node” may refer to a CU, a DU, an RU, a Near-Real Time (Near-RT) RAN Intelligent Controller (RIC) , and / or a Non-Real Time (Non-RT) RIC. In some aspects, the terms “base station” or “network node” may refer to one device configured to perform one or more functions, such as those described herein in connection with the network node 110. In some aspects, the terms “base station” or “network node” may refer to a plurality of devices configured to perform the one or more functions. For example, in some distributed systems, each of a quantity of different devices (which may be located in the same geographic location or in different geographic locations) may be configured to perform at least a portion of a function, or to duplicate performance of at least a portion of the function, and the terms “base station” or “network node” may refer to any one or more of those different devices. In some aspects, the terms “base station” or “network node” may refer to one or more virtual base stations or one or more virtual base station functions. For example, in some aspects, two or more base station functions may be instantiated on a single device. In some aspects, the terms “base station” or “network node” may refer to one of the base station functions and not another. In this way, a single device may include more than one base station.
[0033] A network controller 130 may couple to or communicate with a set of network nodes 110 and may provide coordination and control for these network nodes 110. The network controller 130 may communicate with the network nodes 110 via a backhaul communication link. The network nodes 110 may communicate with one another directly or indirectly via a wireless or wireline backhaul communication link. In some aspects, the network controller 130 may be a CU or a core network device, or the network controller 130 may include a CU or a core network device.
[0034] In some examples, a cell may not necessarily be stationary, and the geographic area of the cell may move in accordance with the location of a network node 110 that is mobile (for example, a mobile network node) . In some examples, the network nodes 110 may be interconnected to one another or to one or more other network nodes 110 or network nodes (not shown) in the wireless network 100 through various types of backhaul interfaces, such as a direct physical connection or a virtual network, using any suitable transport network.
[0035] The wireless network 100 may include one or more relay stations. A relay station is an entity that can receive a transmission of data from an upstream station (for example, a network node 110 or a UE 120) and send a transmission of the data to a downstream station (for example, a UE 120 or a network node 110) . A relay station may be a UE 120 that can relay transmissions for other UEs 120. In the example shown in Figure 1, the network node 110d (for example, a relay network node) may communicate with the network node 110a (for example, a macro network node) and the UE 120d in order to facilitate communication between the network node 110a and the UE 120d. A network node 110 that relays communications may be referred to as a relay station, a relay network node, or a relay.
[0036] The UEs 120 may be dispersed throughout the wireless network 100, and each UE 120 may be stationary or mobile. A UE 120 may include, for example, an access terminal, a terminal, a mobile station, or a subscriber unit. A UE 120 may be a cellular phone (for example, a smart phone) , a personal digital assistant (PDA) , a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (for example, a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (for example, a smart ring or a smart bracelet) ) , an entertainment device (for example, a music device, a video device, or a satellite radio) , a vehicular component or sensor, a smart meter / sensor, industrial manufacturing equipment, a global positioning system device, a UE function of a network node, or any other suitable device that is configured to communicate via a wireless medium.
[0037] Some UEs 120 may be considered machine-type communication (MTC) or evolved or enhanced machine-type communication (eMTC) UEs. An MTC UE or an eMTC UE may include, for example, a robot, a drone, a remote device, a sensor, a meter, a monitor, or a location tag, that may communicate with a network node, another device (for example, a remote device) , or some other entity. Some UEs 120 may be considered Internet-of-Things (IoT) devices, or may be implemented as NB-IoT (narrowband IoT) devices. Some UEs 120 may be considered a Customer Premises Equipment. A UE 120 may be included inside a housing that houses components of the UE 120, such as processor components or memory components. In some examples, the processor components and the memory components may be coupled together. For example, the processor components (for example, one or more processors) and the memory components (for example, a memory) may be operatively coupled, communicatively coupled, electronically coupled, or electrically coupled.
[0038] In general, any quantity of wireless networks 100 may be deployed in a given geographic area. Each wireless network 100 may support a particular RAT and may operate on one or more frequencies. A RAT may be referred to as a radio technology or an air interface. A frequency may be referred to as a carrier or a frequency channel. Each frequency may support a single RAT in a given geographic area in order to avoid interference between wireless networks of different RATs. In some examples, NR or 5G RAT networks may be deployed.
[0039] In some examples, two or more UEs 120 (for example, shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (for example, without using a network node 110 as an intermediary to communicate with one another) . For example, the UEs 120 may communicate using peer-to-peer (P2P) communications, device-to-device (D2D) communications, a vehicle-to-everything (V2X) protocol (for example, which may include a vehicle-to-vehicle (V2V) protocol, a vehicle-to-infrastructure (V2I) protocol, or a vehicle-to-pedestrian (V2P) protocol) , or a mesh network. In such examples, a UE 120 may perform scheduling operations, resource selection operations, or other operations described elsewhere herein as being performed by the network node 110.
[0040] Devices of the wireless network 100 may communicate using the electromagnetic spectrum, which may be subdivided by frequency or wavelength into various classes, bands, or channels. For example, devices of the wireless network 100 may communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified as frequency range designations FR1 (410 MHz –7.125 GHz) and FR2 (24.25 GHz –52.6 GHz) . Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to (interchangeably) as a “Sub-6 GHz” band in various documents and articles. A similar nomenclature issue sometimes occurs in connection with FR2, which is often referred to (interchangeably) as a “millimeter wave” band in documents and articles, despite being different from the extremely high frequency (EHF) band (30 GHz – 300 GHz) which is identified by the International Telecommunications Union (ITU) as a “millimeter wave” band.
[0041] The frequencies between FR1 and FR2 are often referred to as mid-band frequencies. Recent 5G NR studies have identified an operating band for these mid-band frequencies as frequency range designation FR3 (7.125 GHz –24.25 GHz) . Frequency bands falling within FR3 may inherit FR1 characteristics or FR2 characteristics, and thus may effectively extend features of FR1 or FR2 into mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operation beyond 52.6 GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4-1 (52.6 GHz –71 GHz) , FR4 (52.6 GHz –114.25 GHz) , and FR5 (114.25 GHz –300 GHz) . Each of these higher frequency bands falls within the EHF band.
[0042] With the above examples in mind, unless specifically stated otherwise, the term “sub-6 GHz, ” if used herein, may broadly represent frequencies that may be less than 6 GHz, may be within FR1, or may include mid-band frequencies. Further, unless specifically stated otherwise, the term “millimeter wave, ” if used herein, may broadly represent frequencies that may include mid-band frequencies, may be within FR2, FR4, FR4-aor FR4-1, or FR5, or may be within the EHF band. It is contemplated that the frequencies included in these operating bands (for example, FR1, FR2, FR3, FR4, FR4-a, FR4-1, or FR5) may be modified, and techniques described herein are applicable to those modified frequency ranges.
[0043] In some aspects, the UE 120 may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may receive, while the UE 120 is in an RRC connected state, a grant for a transmission that is to occur at a grant time; receive, while the UE 120 is in the RRC connected state, a paging message; and delay, while an inactive interval associated with the UE 120 does not satisfy a configurable inactive interval threshold, release of the RRC connected state. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.
[0044] Figure 2 is a diagram illustrating an example network node in communication with a UE in a wireless network in accordance with the present disclosure. The network node may correspond to the network node 110 of Figure 1. Similarly, the UE may correspond to the UE 120 of Figure 1. The network node 110 may be equipped with a set of antennas 234a through 234t, such as T antennas (T ≥ 1) . The UE 120 may be equipped with a set of antennas 252a through 252r, such as R antennas (R ≥ 1) . The network node 110 of depicted in Figure 2 includes one or more radio frequency components, such as antennas 234 and a modem 232. In some examples, a network node 110 may include an interface, a communication component, or another component that facilitates communication with the UE 120 or another network node. Some network nodes 110 may not include radio frequency components that facilitate direct communication with the UE 120, such as one or more CUs, or one or more DUs.
[0045] At the network node 110, a transmit processor 220 may receive data, from a data source 212, intended for the UE 120 (or a set of UEs 120) . The transmit processor 220 may select one or more modulation and coding schemes (MCSs) for the UE 120 based at least in part on one or more channel quality indicators (CQIs) received from that UE 120. The network node 110 may process (for example, encode and modulate) the data for the UE 120 based at least in part on the MCS (s) selected for the UE 120 and may provide data symbols for the UE 120. The transmit processor 220 may process system information (for example, for semi-static resource partitioning information (SRPI)) and control information (for example, CQI requests, grants, or upper layer signaling) and provide overhead symbols and control symbols. The transmit processor 220 may generate reference symbols for reference signals (for example, a cell-specific reference signal (CRS) or a demodulation reference signal (DMRS) ) and synchronization signals (for example, a primary synchronization signal (PSS) or a secondary synchronization signal (SSS) ) . A transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (for example, precoding) on the data symbols, the control symbols, the overhead symbols, or the reference symbols, if applicable, and may provide a set of output symbol streams (for example, T output symbol streams) to a corresponding set of modems 232 (for example, T modems) , shown as modems 232a through 232t. For example, each output symbol stream may be provided to a modulator component (shown as MOD) of a modem 232. Each modem 232 may use a respective modulator component to process a respective output symbol stream (for example, for OFDM) to obtain an output sample stream. Each modem 232 may further use a respective modulator component to process (for example, convert to analog, amplify, filter, or upconvert) the output sample stream to obtain a downlink signal. The modems 232a through 232t may transmit a set of downlink signals (for example, T downlink signals) via a corresponding set of antennas 234 (for example, T antennas) , shown as antennas 234a through 234t.
[0046] At the UE 120, a set of antennas 252 (shown as antennas 252a through 252r) may receive the downlink signals from the network node 110 or other network nodes 110 and may provide a set of received signals (for example, R received signals) to a set of modems 254 (for example, R modems) , shown as modems 254a through 254r. For example, each received signal may be provided to a demodulator component (shown as DEMOD) of a modem 254. Each modem 254 may use a respective demodulator component to condition (for example, filter, amplify, downconvert, or digitize) a received signal to obtain input samples. Each modem 254 may use a demodulator component to further process the input samples (for example, for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from the modems 254, may perform MIMO detection on the received symbols if applicable, and may provide detected symbols. A receive processor 258 may process (for example, demodulate and decode) the detected symbols, may provide decoded data for the UE 120 to a data sink 260, and may provide decoded control information and system information to a controller / processor 280. The term “controller / processor” may refer to one or more controllers and / or one or more processors. A channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, or a CQI parameter, among other examples. In some examples, one or more components of the UE 120 may be included in a housing 284.
[0047] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with the network node 110 via the communication unit 294.
[0048] One or more antennas (for example, antennas 234a through 234t or antennas 252a through 252r) may include, or may be included within, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, or one or more antenna arrays, among other examples. An antenna panel, an antenna group, a set of antenna elements, or an antenna array may include one or more antenna elements (within a single housing or multiple housings) , a set of coplanar antenna elements, a set of non- coplanar antenna elements, or one or more antenna elements coupled to one or more transmission or reception components, such as one or more components of Figure 2.
[0049] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information (for example, for reports that include RSRP, RSSI, RSRQ, or CQI) from the controller / processor 280. The transmit processor 264 may generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266 if applicable, further processed by the modems 254 (for example, for DFT-s-OFDM or CP-OFDM) , and transmitted to the network node 110. In some examples, the modem 254 of the UE 120 may include a modulator and a demodulator. In some examples, the UE 120 includes a transceiver. The transceiver may include any combination of the antenna (s) 252, the modem (s) 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, or the TX MIMO processor 266. The transceiver may be used by a processor (for example, the controller / processor 280) and the memory 282 to perform aspects of any of the methods described herein.
[0050] At the network node 110, the uplink signals from UE 120 or other UEs may be received by the antennas 234, processed by the modem 232 (for example, a demodulator component, shown as DEMOD, of the modem 232) , detected by a MIMO detector 236 if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by the UE 120. The receive processor 238 may provide the decoded data to a data sink 239 and provide the decoded control information to the controller / processor 240. The network node 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The network node 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink or uplink communications. In some examples, the modem 232 of the network node 110 may include a modulator and a demodulator. In some examples, the network node 110 includes a transceiver. The transceiver may include any combination of the antenna (s) 234, the modem (s) 232, the MIMO detector 236, the receive processor 238, the transmit processor 220, or the TX MIMO processor 230. The transceiver may be used by a processor (for example, the controller / processor 240) and the memory 242 to perform aspects of any of the methods described herein.
[0051] The controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, or any other component (s) of Figure 2 may perform one or more techniques associated with handling a paging message using an inactive interval, as described in more detail elsewhere herein. For example, the controller / processor 240 of the network node 110, the controller / processor 280 of the UE 120, or any other component (s) of Figure 2 may perform or direct operations of, for example, process 700 of Figure 7 or other processes as described herein. The memory 242 and the memory 282 may store data and program codes for the network node 110 and the UE 120, respectively. In some examples, the memory 242 or the memory 282 may include a non-transitory computer-readable medium storing one or more instructions (for example, code or program code) for wireless communication. For example, the one or more instructions, when executed (for example, directly, or after compiling, converting, or interpreting) by one or more processors of the network node 110 or the UE 120, may cause the one or more processors, the UE 120, or the network node 110 to perform or direct operations of, for example, process 700 of Figure 7 or other processes as described herein. In some examples, executing instructions may include running the instructions, converting the instructions, compiling the instructions, or interpreting the instructions, among other examples.
[0052] In some aspects, the UE 120 includes means for receiving, while the UE 120 is in an RRC connected state, a grant for a transmission that is to occur at a grant time; means for receiving, while the UE 120 is in the RRC connected state, a paging message; and / or means for delaying, while an inactive interval associated with the UE 120 does not satisfy a configurable inactive interval threshold, release of the RRC connected state. The means for the UE 120 to perform operations described herein may include, for example, one or more of communication manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller / processor 280, or memory 282.
[0053] Deployment of communication systems, such as 5G NR systems, may be arranged in multiple manners with various components or constituent parts. In a 5G NR system, or network, a network node, a network entity, a mobility element of a network, a RAN node, a core network node, a network element, a base station, or a network equipment may be implemented in an aggregated or disaggregated architecture. For example, a base station (such as a Node B (NB) , an evolved NB (eNB) , an NR base station, a 5G NB, an access point (AP) , a TRP, or a cell, among other examples) , or one or more units (or one or more components) performing base station functionality, may be implemented as an aggregated base station (also known as a standalone base station or a monolithic base station) or a disaggregated base station. “Network entity” or “network node” may refer to a disaggregated base station, or to one or more units of a disaggregated base station (such as one or more CUs, one or more DUs, and / or one or more RUs) .
[0054] An aggregated base station (for example, an aggregated network node) may be configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node (for example, within a single device or unit) . A disaggregated base station (for example, a disaggregated network node) may be configured to utilize a protocol stack that is physically or logically distributed among two or more units (such as one or more CUs, one or more DUs, or one or more RUs) . In some examples, a CU may be implemented within a network node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed throughout one or multiple other network nodes. The DUs may be implemented to communicate with one or more RUs. Each of the CU, DU, and RU also can be implemented as virtual units, such as a virtual central unit (VCU) , a virtual distributed unit (VDU) , or a virtual radio unit (VRU) , among other examples.
[0055] Base station-type operation or network design may consider aggregation characteristics of base station functionality. For example, disaggregated base stations may be utilized in an IAB network, an open radio access network (O-RAN (such as the network configuration sponsored by the O-RAN Alliance) ) , or a virtualized radio access network (vRAN, also known as a cloud radio access network (C-RAN) ) to facilitate scaling of communication systems by separating base station functionality into one or more units that can be individually deployed. A disaggregated base station may include functionality implemented across two or more units at various physical locations, as well as functionality implemented for at least one unit virtually, which can enable flexibility in network design. The various units of the disaggregated base station can be configured for wired or wireless communication with at least one other unit of the disaggregated base station.
[0056] Figure 3 is a diagram illustrating an example disaggregated base station architecture 300 in accordance with the present disclosure. The disaggregated base station architecture 300 may include a CU 310 that can communicate directly with a core network 320 via a backhaul link, or indirectly with the core network 320 through one or more disaggregated control units (such as a Near-RT RIC 325 via an E2 link, or a Non-RT RIC 315 associated with a Service Management and Orchestration (SMO) Framework 305, or both) . A CU 310 may communicate with one or more DUs 330 via respective midhaul links, such as through F1 interfaces. Each of the DUs 330 may communicate with one or more RUs 340 via respective fronthaul links. Each of the RUs 340 may communicate with one or more UEs 120 via respective radio frequency (RF) access links. In some implementations, a UE 120 may be simultaneously served by multiple RUs 340.
[0057] Each of the units, including the CUs 310, the DUs 330, the RUs 340, as well as the Near-RT RICs 325, the Non-RT RICs 315, and the SMO Framework 305, may include one or more interfaces or be coupled with one or more interfaces configured to receive or transmit signals, data, or information (collectively, signals) via a wired or wireless transmission medium. Each of the units, or an associated processor or controller providing instructions to one or multiple communication interfaces of the respective unit, can be configured to communicate with one or more of the other units via the transmission medium. In some examples, each of the units can include a wired interface, configured to receive or transmit signals over a wired transmission medium to one or more of the other units, and a wireless interface, which may include a receiver, a transmitter or transceiver (such as a RF transceiver) , configured to receive or transmit signals, or both, over a wireless transmission medium to one or more of the other units.
[0058] In some aspects, the CU 310 may host one or more higher layer control functions. Such control functions can include RRC functions, packet data convergence protocol (PDCP) functions, or service data adaptation protocol (SDAP) functions, among other examples. Each control function can be implemented with an interface configured to communicate signals with other control functions hosted by the CU 310. The CU 310 may be configured to handle user plane functionality (for example, Central Unit –User Plane (CU-UP) functionality) , and / or control plane functionality (for example, Central Unit –Control Plane (CU-CP) functionality) . In some implementations, the CU 310 can be logically split into one or more CU-UP units and one or more CU-CP units. A CU-UP unit can communicate bidirectionally with a CU-CP unit via an interface, such as the E1 interface when implemented in an O-RAN configuration. The CU 310 can be implemented to communicate with a DU 330, as necessary, for network control and signaling.
[0059] Each DU 330 may correspond to a logical unit that includes one or more base station functions to control the operation of one or more RUs 340. In some aspects, the DU 330 may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more high physical (PHY) layers depending, at least in part, on a functional split, such as a functional split defined by the 3GPP. In some aspects, the one or more high PHY layers may be implemented by one or more modules for forward error correction (FEC) encoding and decoding, scrambling, and modulation and demodulation, among other examples. In some aspects, the DU 330 may further host one or more low PHY layers, such as implemented by one or more modules for a fast Fourier transform (FFT) , an inverse FFT (iFFT) , digital beamforming, or physical random access channel (PRACH) extraction and filtering, among other examples. Each layer (which also may be referred to as a module) can be implemented with an interface configured to communicate signals with other layers (and modules) hosted by the DU 330, or with the control functions hosted by the CU 310.
[0060] Each RU 340 may implement lower-layer functionality. In some deployments, an RU 340, controlled by a DU 330, may correspond to a logical node that hosts RF processing functions or low-PHY layer functions, such as performing an FFT, performing an iFFT, digital beamforming, or PRACH extraction and filtering, among other examples, based on or otherwise associated with a functional split (for example, a functional split defined by the 3GPP) , such as a lower layer functional split. In such an architecture, each RU 340 can be operated to handle over the air (OTA) communication with one or more UEs 120. In some implementations, real-time and non-real-time aspects of control and user plane communication with the RU (s) 340 can be controlled by the corresponding DU 330. In some scenarios, this configuration can enable each DU 330 and the CU 310 to be implemented in a cloud-based RAN architecture, such as a vRAN architecture.
[0061] The SMO Framework 305 may be configured to support RAN deployment and provisioning of non-virtualized and virtualized network elements. For non-virtualized network elements, the SMO Framework 305 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operations and maintenance interface (such as an O1 interface) . For virtualized network elements, the SMO Framework 305 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) platform 390) to perform network element life cycle management (such as to instantiate virtualized network elements) via a cloud computing platform interface (such as an O2 interface) . Such virtualized network elements can include, but are not limited to, CUs 310, DUs 330, RUs 340, non-RT RICs 315, and Near-RT RICs 325. In some implementations, the SMO Framework 305 can communicate with a hardware aspect of a 4G RAN, such as an open eNB (O-eNB) 311, via an O1 interface. Additionally, in some implementations, the SMO Framework 305 can communicate directly with each of one or more RUs 340 via a respective O1 interface. The SMO Framework 305 also may include a Non-RT RIC 315 configured to support functionality of the SMO Framework 305.
[0062] The Non-RT RIC 315 may be configured to include a logical function that enables non-real-time control and optimization of RAN elements and resources, Artificial Intelligence / Machine Learning (AI / ML) workflows including model training and updates, or policy-based guidance of applications / features in the Near-RT RIC 325. The Non-RT RIC 315 may be coupled to or communicate with (such as via an A1 interface) the Near-RT RIC 325. The Near-RT RIC 325 may be configured to include a logical function that enables near-real-time control and optimization of RAN elements and resources via data collection and actions over an interface (such as via an E2 interface) connecting one or more CUs 310, one or more DUs 330, or both, as well as an O-eNB, with the Near-RT RIC 325.
[0063] In some implementations, to generate AI / ML models to be deployed in the Near-RT RIC 325, the Non-RT RIC 315 may receive parameters or external enrichment information from external servers. Such information may be utilized by the Near-RT RIC 325 and may be received at the SMO Framework 305 or the Non-RT RIC 315 from non-network data sources or from network functions. In some examples, the Non-RT RIC 315 or the Near-RT RIC 325 may be configured to tune RAN behavior or performance. For example, the Non-RT RIC 315 may monitor long-term trends and patterns for performance and employ AI / ML models to perform corrective actions through the SMO Framework 305 (such as reconfiguration via an O1 interface) or via creation of RAN management policies (such as A1 interface policies) .
[0064] Figure 4 is a diagram illustrating an example 400 associated with paging messages in accordance with the present disclosure. As shown in Figure 4, a UE 410 and a network node 420 may communicate with one another.
[0065] In a first operation 430, a network node 420 may output, and a UE 410 may receive, a paging message. In some examples, a purpose of this procedure may be to transmit paging information to a UE (for example, UE 410) in RRC idle state ( “RRC_IDLE” ) or RRC inactive state ( “RRC_INACTIVE” ) . In some examples, a purpose of this procedure may be to transmit paging information for a Layer 2 (L2) UE-to-network (U2N) remote UE in RRC_IDLE state or RRC_INACTIVE state to a serving L2 U2N relay UE (for example, UE 410) in any RRC state.
[0066] When an RRC connection has been established, the UE 410 may be in RRC connected state ( “RRC_CONNECTED” ) or in RRC_INACTIVE state. If no RRC connection has been established, then the UE 410 may be in RRC_IDLE state.
[0067] RRC_CONNECTED state may be characterized as follows. In some examples, the UE 410 may store access stratum (AS) context. RRC_CONNECTED state may support transfer of unicast data to / from the UE 410 and / or transfer of multicast and broadcast services (MBS) multicast data to the UE 410. In some examples, at lower layers, the UE 410 may be configured with a UE specific discontinuous reception (DRX) . In some examples, at lower layers, the UE may be configured with a DRX for point-to-multipoint (PTM) transmission of MBS broadcast and / or a DRX for MBS multicast. For UEs (for example, UE 410) supporting carrier aggregation (CA) , RRC_CONNECTED state may support use of one or more secondary cells (Scells) , aggregated with a special cell (SpCell) , for increased bandwidth. For UEs (for example, UE 410) supporting dual connectivity (DC) , RRC_CONNECTED state may support use of one secondary cell group (SCG) , aggregated with the main cell group (MCG) , for increased bandwidth. In some examples, network-controlled mobility may be available within NR, to / from evolved universal mobile telecommunication system (UMTS) terrestrial radio access (E-UTRA) , and to UMTS terrestrial radio access (UTRA) frequency division duplex (UTRA-FDD) . In some examples, network-controlled mobility (for example, path switch) may be available between a serving cell and a L2 U2N Relay UE, or vice versa.
[0068] In RRC_CONNECTED state, the UE 410 may monitor control channels associated with the shared data channel to determine if data is scheduled for the UE 410, provide channel quality and feedback information, perform neighboring cell measurements and measurement reporting, acquire system information, perform immediate minimization of drive test (MDT) measurements together with available location reporting, and / or, if configured by upper layers for MBS broadcast reception, acquire MBS control channel (MCCH) change notifications and MBS broadcast control information and data. In RRC_CONNECTED state, the UE 410 may monitor short messages transmitted with P-RNTI over DCI, if configured.
[0069] A UE may monitor the P-RNTI over DCI during an RRC connected state for only short messages. Therefore, it is unexpected for theUE to receive a paging message scheduled by P-RNTI over DCI in the RRC connected state. However, in some examples, a network can send a paging message to an RRC connected UE. The network sending the paging message while the UE is in the RRC connected state may indicate that the network and the UE are unsynchronized. For example, the network sending the paging message while the UE is in the RRC connected state may indicate that the network has identified the UE as not being in an RRC connected state (for example, the network has identified the UE as being in an RRC idle state or in an RRC inactive state) . As a result, the paging message may prompt the UE to blindly perform a connection release (for example, a local RRC connection release) , move to RRC idle state, and re-try a registration procedure to re-synchronize with network (for example, such that the network identifies the UE as being in an RRC connected state when the UE is in the RRC connected state) .
[0070] However, the paging message may have been sent in error. For example, the network may send the paging message even though the network and the UE are synchronized (for example, even though the network has identified the UE as being in an RRC connected state) . Due to the network sending the paging message in error, the UE may blindly address (for example, process) the paging message by triggering the connection release (for example, a radio link failure (RLF) procedure) . Thus, the UE may switch to RRC idle state to re-synchronize with the network via a non-access stratum (NAS) triggering registration request.
[0071] Performing a local RRC connection release in response to a paging message sent in error may interrupt an RRC connection. For example, receiving an erroneous paging message during an active VoNR voice call can prompt the UE to blindly release the RRC connection, thereby interrupting the voice call. For example, the local RRC connection release may cause intermittent voice breaks, silence during the call, delays, or call drops, among other examples. Such interruptions may degrade overall user experience.
[0072] Various aspects relate generally to handling of paging messages. Some aspects more specifically relate to delaying release of an RRC connection in response to a paging message received by a UE in an RRC connected state. In some aspects, the UE monitors how long the network has been inactive and, after a configurable amount of time, releases the RRC connection. In some examples, the UE may receive a grant from the network before the configurable amount of time has elapsed, and the UE may ignore the paging message (for example, the UE may determine not to release the RRC connection at any point in response to the paging message) . In some examples, the UE may not receive a grant from the network before the configurable amount of time has elapsed, and the UE may release the RRC connection.
[0073] Particular aspects of the subject matter described in this disclosure can be implemented to realize one or more of the following potential advantages. In some examples, the described techniques can be used to enable the UE to delay release of an RRC connected state in case the paging message was sent in error, thereby preventing interruptions in service. For example, by efficiently handling a mobile terminated (MT) paging message in accordance with the configurable amount of time, a UE in an RRC connected state may preserve an ongoing voice over VoLTE call and associated call performance, LTE data traffic, an ongoing VoNR call and associated call performance, NR data traffic, an ongoing 6G voice call and associated call performance, 6G data traffic, or the like. The UE receiving the grant from the network within the configurable amount of time may indicate that the network and the UE are synchronized (for example, the paging message was sent in error) , and, therefore, the UE may maintain the existing RRC connection. The UE not receiving any more grants from the network within the configurable amount of time may indicate that the network and the UE are not synchronized (for example, the connection with the UE may have already been released at the network side due to the UE and the network becoming unsynchronized) , and, therefore, the UE may release the RRC connection and re-register with the network to re-synchronize with the network. Thus, the UE may differentiate between, and handle differently, erroneous paging messages and paging message sent because the network and the UE are not synchronized. Furthermore, the configurable amount of time may be configured to enable earlier re-synchronization with the network (for example, by shortening the configurable amount of time) .
[0074] Figure 5 is a diagram illustrating an example 500 associated with handling a paging message received during an RRC connected state in accordance with the present disclosure. As shown in Figure 5, a network node 110 and a UE 120 may communicate with one another.
[0075] In a first operation 510, the network node 110 may output, and the UE 120 may receive, while the UE 120 is in an RRC connected state, a grant for a transmission that is to occur at a grant time. For example, the grant may be an uplink grant for an uplink transmission, or the grant may be a downlink grant for a downlink transmission. The grant time may be the time at which the UE 120 is to send the uplink transmission or receive the downlink transmission. The transmission may be associated with one or more of voice traffic (for example, VoNR traffic) or data traffic.
[0076] In a second operation 520, the network node 110 may output, and the UE 120 may receive, while the UE 120 is in an RRC connected state, a paging message. In some examples, the network node 110 may output the paging message because the network node 110 and the UE 120 are not synchronized. In some examples, the network node 110 may output the paging message erroneously (for example, the network node 110 may output the paging message even though the network node 110 and the UE 120 are synchronized) .
[0077] In a third operation 530, the UE 120 may delay, while an inactive interval associated with the UE 120 does not satisfy a configurable inactive interval threshold, release of the RRC connected state. The inactive interval may be a length of time for which the network node 110 is inactive with respect to the UE 120. For example, while the inactive interval is less than the configurable inactive interval threshold, the UE 120 may delay release of the RRC connected state. For example, the UE 120 may refrain from performing a local RRC connection release procedure associated with the paging message. The configurable inactive interval threshold may be any suitable configurable value (e.g., five or ten seconds) .
[0078] For example, the UE 120 may make a voice or traffic call, cease receiving cell radio network temporary identifier (C-RNTI) DCI grants, and then receive a paging message before the inactive interval reaches the configurable inactive interval threshold. Instead of immediately releasing the connection (and triggering a registration procedure) in response to the paging message, the UE 120 may wait to determine whether to release the connection (and trigger the registration procedure) in response to the paging message. For example, if the UE 120 receives a C-RNTI DCI grant before the inactive interval reaches the configurable inactive interval threshold, then the paging message was sent in error and the UE 120 may continue service without triggering a connection release. If the UE 120 does not receive a C-RNTI DCI grant before the inactive interval reaches the configurable inactive interval threshold, then the UE 120 and the network node 110 are unsynchronized and the UE 120 may release the connection after the inactive interval reaches the configurable inactive interval threshold and trigger a registration procedure.
[0079] Delaying release of the RRC connected state while the inactive interval does not satisfy the configurable inactive interval threshold may enable the UE 120 to delay release of the RRC connected state in case the paging message was sent in error, thereby preventing interruptions to the RRC connection. For example, the UE 120 may (for example, at L2 and / or layer 3 (L3) distinguish between, and handle accordingly, MT paging messages in scenarios where the network node 110 outputs the paging message because the network node 110 and the UE 120 are not synchronized (for example, when the inactive interval exceeds the configurable inactive interval threshold) and scenarios where the network node 110 outputs the paging message erroneously (for example, when the inactive interval is smaller than the configurable inactive interval threshold) .
[0080] Moreover, the configurable inactive interval threshold may be configured with any suitable value, such as a smallest value that enables the UE 120 to distinguish between the scenarios discussed above, which may enable the UE 120 to quickly synchronize with the network node 110 by triggering local release procedures in response to the inactive interval exceeding the configurable inactive interval threshold. By waiting until after the expiry of the timer (for example, a length of time for the inactive interval to exceed the configurable inactive interval threshold) to respond to the paging message (for example, by releasing the RRC connection) , the UE 120 may help to guarantee that data is forwarded appropriately.
[0081] For instance, in examples where the transmission is associated with voice traffic, the UE 120 may prevent interruptions to a voice call. In examples where the transmission is associated with data traffic, the UE 120 may prevent interruptions to a traffic call. Refraining from performing the local RRC connection release procedure may enable the UE 120 to delay release of the RRC connected state.
[0082] In some aspects, the inactive interval is associated with a difference between a current time and the grant time. For example, the UE 120 may determine that the inactive interval extends from the grant time to the current time. The grant time may correspond to the time at which a most recent transmission (for example, uplink transmission or downlink transmission) , associated with a given C-RNTI, was sent by, or received at, the UE 120. For instance, inactive interval = (current time) – (last uplink or downlink data associated with the C-RNTI) . In some examples, the UE 120 may monitor the inactive interval as the current time changes (for example, the UE 120 may monitor the inactive interval over time) .
[0083] Associating the inactive interval with a difference between a current time and the grant time may enable the UE 120 to determine how long the network node 110 (for example, cell) has been inactive for, which may enable the UE 120 to determine whether to ignore the paging message (for example, in case the network node 110 and the UE 120 are synchronized) or to perform the local RRC connection release procedure (for example, in case the network node 110 and the UE 120 are unsynchronized) .
[0084] In some aspects, the current time may be a time at which the UE 120 receives the paging message. For example, the UE 120 may determine the inactive interval upon receiving the paging message. In some examples, the UE 120 may, at L2, determine the inactive interval monitoring based on or responsive to the time at which the paging message was received with respect to a time at which the last (for example, the most recent) uplink grant or downlink grant associated with the C-RNTI was received. For instance, inactive interval = (P-RNTI received in RRC connected state) – (last uplink or downlink data associated with the C-RNTI) . Thus, after receiving the paging message, the UE 120 may determine the inactive interval between the current time (for example, the time at which the paging message was received) and the last C-RNTI DCI grant time. If the inactive interval is less than the configurable inactive interval threshold, then the paging message may have been sent in error and the UE 120 does not immediately release the RRC connection.
[0085] In some examples, if the most recent C-RNTI grant was received 4.5 ms before the paging message, then the UE 120 and the network node 110 may be synchronized (for example, and the paging message may be erroneous and the UE 120 may remain in the RRC connected state) . If the most recent C-RNTI grant was received 76.5 ms before the paging message, then the UE 120 and the network node 110 may or may not be synchronized, depending on the configurable inactive interval threshold. If the C-RNTI grant was received 380 ms before the paging message, then the UE 120 and the network node 110 may not be synchronized (for example, and the paging message may not be erroneous and the UE 120 may not remain in the RRC connected state) .
[0086] The current time being the time at which the UE 120 receives the paging message may enable the UE 120 to determine, with minimal or no delay from when the paging message is received, whether to ignore the paging message (for example, in case the network node 110 and the UE 120 are synchronized) or to perform the local RRC connection release procedure (for example, in case the network node 110 and the UE 120 are unsynchronized) . For example, performing the local RRC connection release procedure may enable the UE 120 to re-establish an RRC connection with minimal or no delay.
[0087] In some aspects, the UE 120 may receive, while the inactive interval does not satisfy the configurable inactive interval threshold, another grant for another transmission that is to occur at another grant time. For example, the other grant may be another uplink grant for another uplink transmission, or the other grant may be another downlink grant for another downlink transmission. The other grant time may be a time at which the UE 120 is to send the other uplink transmission or receive the other downlink transmission. For example, the UE 120 may receive the other grant before the inactive interval exceeds the configurable inactive interval threshold. In some examples, the UE 120 may ignore the paging message. For example, the UE 120 may determine that the UE 120 is not, at any time, to perform a local RRC connection release procedure due to the UE 120 receiving the paging message. Thus, if the UE 120 receives any C-RNTI DCI grant before the inactive interval reaches the configurable inactive interval threshold, then the UE 120 and the network node 110 may be synchronized, and the UE 120 may reset the inactive interval and ignore the paging message.
[0088] The UE 120 receiving the other grant while the inactive interval does not satisfy the configurable inactive interval threshold may indicate that the paging message was sent erroneously (for example, the network node 110 and the UE 120 are synchronized) . The UE 120 ignoring the paging message may enable the UE 120 to delay release of the RRC connected state before the inactive interval reaches the configurable inactive interval threshold, which may reduce interruptions to the RRC connection.
[0089] In some aspects, the UE 120 may determine that the inactive interval satisfies the configurable inactive interval threshold. For example, the UE 120 may determine that the inactive interval has exceeded the configurable inactive interval threshold. For example, the UE 120 may determine that no other grants have been received since the grant received with reference to operation 510. The UE 120 may perform a local RRC connection release procedure and a follow-up registration procedure. For example, the UE 120 may release the RRC connection and establish another RRC connection with the network node 110. Thus, if the inactive interval reaches the configurable inactive interval threshold, then the UE 120 and the network node 110 may be unsynchronized, and the UE 120 may perform the local RRC connection release and retry registration with the network node 110.
[0090] The UE 120 determining that the inactive interval satisfies the configurable inactive interval threshold may indicate that the paging message was not sent erroneously (for example, the network node 110 and the UE 120 are not synchronized) . The UE 120 performing the local RRC connection release procedure and the follow-up registration procedure may enable the UE 120 to re-synchronize with the network node 110.
[0091] Figure 6 is a diagram illustrating an example 600 associated with determining how to handle a paging message received during an RRC connected state in accordance with the present disclosure.
[0092] In a first operation 610, a UE (for example, the UE 120) may receive a page in a connected mode. For example, the UE may receive a paging message while the UE is in an RRC connected state. The UE may determine an inactive interval as a difference between the current time (for example, a time at which the paging message was received) and a last C-RNTI time (for example, the most recent grant time) .
[0093] In a second operation 620, the UE may determine whether the inactive interval exceeds the configurable inactive activity threshold. If the inactive interval exceeds the configurable inactive activity threshold (for example, if the UE and the network node are unsynchronized) , then, in a third operation 630, the UE may perform a local connection release (for example, a local RRC connection release) . The UE may also trigger registration (for example, the UE may re-register with the network node) . In a fourth operation 640, the UE may continue service.
[0094] Returning to the second operation 620, if the inactive interval does not exceed the configurable inactive activity threshold (for example, if the paging message was potentially sent in error) , then, in a fifth operation 650, the UE may wait for a next slot. In a sixth operation 660, the UE may determine whether a C-RNTI has been received. For example, the UE may determine whether a grant has been received in the next slot. If the C-RNTI was received, (for example, if the paging message was sent in error) , then, in a seventh operation 670, the UE may reset the inactive interval and, in the fourth operation 640, the UE may continue service. For example, the UE may continue service without performing the local connection release.
[0095] Returning to the sixth operation 660, if the C-RNTI was not received, then, in an eighth operation 680, the UE may determine whether the inactive interval exceeds the configurable inactive activity threshold. If the inactive interval does not exceed the configurable inactive activity threshold (for example, if the paging message was potentially sent in error) , then, the UE may return to the fifth operation 650 (for example, the UE may wait for a next slot) . If the inactive interval exceeds the configurable inactive activity threshold (for example, if the UE and the network node are unsynchronized) , then, in the third operation 630, the UE may perform the local connection release and trigger registration and, in the fourth operation 640, continue service.
[0096] Figure 7 is a flowchart illustrating an example process 700 performed, for example, by a UE that supports handling a paging message using an inactive interval in accordance with the present disclosure. Example process 700 is an example where the UE (for example, UE 120) performs operations associated with an inactive interval for handling of a paging message.
[0097] As shown in Figure 7, in some aspects, process 700 may include receiving, while the UE is in an RRC connected state, a grant for a transmission that is to occur at a grant time (block 710) . For example, the UE (such as by using communication manager 140 or reception component 802, depicted in Figure 8) may receive, while the UE is in an RRC connected state, a grant for a transmission that is to occur at a grant time, as described above.
[0098] As further shown in Figure 7, in some aspects, process 700 may include receiving, while the UE is in the RRC connected state, a paging message (block 720) . For example, the UE (such as by using communication manager 140 or reception component 802, depicted in Figure 8) may receive, while the UE is in the RRC connected state, a paging message, as described above.
[0099] As further shown in Figure 7, in some aspects, process 700 may include delaying, while an inactive interval associated with the UE does not satisfy a configurable inactive interval threshold, release of the RRC connected state (block 730) . For example, the UE (such as by using communication manager 140 or delaying component 808, depicted in Figure 8) may delay, while an inactive interval associated with the UE does not satisfy a configurable inactive interval threshold, release of the RRC connected state, as described above.
[0100] Process 700 may include additional aspects, such as any single aspect or any combination of aspects described below or in connection with one or more other processes described elsewhere herein.
[0101] In some examples, delaying release of the RRC connected state includes refraining from performing a local RRC connection release procedure associated with the paging message.
[0102] In some examples, the inactive interval is associated with a difference between a current time and the grant time.
[0103] In some examples, the current time is a time at which the UE receives the paging message.
[0104] In some examples, the grant is a first grant, the transmission is a first transmission, the grant time is a first grant time, and process 700 further includes receiving, while the inactive interval does not satisfy the configurable inactive interval threshold, a second grant for a second transmission that is to occur at a second grant time, and ignoring the paging message.
[0105] In some examples, process 700 includes determining that the inactive interval satisfies the configurable inactive interval threshold, and performing a local RRC connection release procedure and a follow-up registration procedure.
[0106] In some examples, the transmission is associated with voice traffic.
[0107] In some examples, the transmission is associated with data traffic.
[0108] Although Figure 7 shows example blocks of process 700, in some aspects, process 700 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Figure 7. Additionally or alternatively, two or more of the blocks of process 700 may be performed in parallel.
[0109] Figure 8 is a diagram of an example apparatus 800 for wireless communication that supports handling a paging message using an inactive interval in accordance with the present disclosure. The apparatus 800 may be a UE, or a UE may include the apparatus 800. In some aspects, the apparatus 800 includes a reception component 802, a transmission component 804, and a communication manager 140, which may be in communication with one another (for example, via one or more buses) . As shown, the apparatus 800 may communicate with another apparatus 806 (such as a UE, a network node, or another wireless communication device) using the reception component 802 and the transmission component 804.
[0110] In some aspects, the apparatus 800 may be configured to and / or operable to perform one or more operations described herein in connection with Figures 5-6. Additionally or alternatively, the apparatus 800 may be configured to and / or operable to perform one or more processes described herein, such as process 700 of Figure 7. In some aspects, the apparatus 800 may include one or more components of the UE described above in connection with Figure 2.
[0111] The reception component 802 may receive communications, such as reference signals, control information, and / or data communications, from the apparatus 806. The reception component 802 may provide received communications to one or more other components of the apparatus 800, such as the communication manager 140. In some aspects, the reception component 802 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples) , and may provide the processed signals to the one or more other components. In some aspects, the reception component 802 may include one or more antennas, a modem, a demodulator, a MIMO detector, a receive processor, a controller / processor, and / or a memory of the UE described above in connection with Figure 2.
[0112] The transmission component 804 may transmit communications, such as reference signals, control information, and / or data communications, to the apparatus 806. In some aspects, the communication manager 140 may generate communications and may transmit the generated communications to the transmission component 804 for transmission to the apparatus 806. In some aspects, the transmission component 804 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 806. In some aspects, the transmission component 804 may include one or more antennas, a modem, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, and / or a memory of the UE described above in connection with Figure 2. In some aspects, the transmission component 804 may be co-located with the reception component 802 in a transceiver.
[0113] The communication manager 140 may receive or may cause the reception component 802 to receive, while the UE is in an RRC connected state, a grant for a transmission that is to occur at a grant time. The communication manager 140 may receive or may cause the reception component 802 to receive, while the UE is in the RRC connected state, a paging message. The communication manager 140 may delay, while an inactive interval associated with the UE does not satisfy a configurable inactive interval threshold, release of the RRC connected state. In some aspects, the communication manager 140 may perform one or more operations described elsewhere herein as being performed by one or more components of the communication manager 140.
[0114] The communication manager 140 may include a controller / processor and / or a memory, of the UE described above in connection with Figure 2. In some aspects, the communication manager 140 includes a set of components, such as delaying component 808, an ignoring component 810, a determination component 812, and / or a performing component 814. Alternatively, the set of components may be separate and distinct from the communication manager 140. In some aspects, one or more components of the set of components may include or may be implemented within a controller / processor and / or a memory of the UE described above in connection with Figure 2. Additionally or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or a processor to perform the functions or operations of the component.
[0115] The reception component 802 may receive, while the UE is in an RRC connected state, a grant for a transmission that is to occur at a grant time. The reception component 802 may receive, while the UE is in the RRC connected state, a paging message. The delaying component 808 may delay, while an inactive interval associated with the UE does not satisfy a configurable inactive interval threshold, release of the RRC connected state.
[0116] The reception component 802 may receive, while the inactive interval does not satisfy the configurable inactive interval threshold, a second grant for a second transmission that is to occur at a second grant time. The ignoring component 810 may ignore the paging message.
[0117] The determination component 812 may determine that the inactive interval satisfies the configurable inactive interval threshold. The performing component 814 may perform a local RRC connection release procedure and a follow-up registration procedure.
[0118] The quantity and arrangement of components shown in Figure 8 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Figure 8. Furthermore, two or more components shown in Figure 8 may be implemented within a single component, or a single component shown in Figure 8 may be implemented as multiple, distributed components. Additionally or alternatively, a set of (one or more) components shown in Figure 8 may perform one or more functions described as being performed by another set of components shown in Figure 8.
[0119] Figure 9 is a diagram of an example apparatus 900 for wireless communication that supports handling a paging message using an inactive interval in accordance with the present disclosure. The apparatus 900 may be a network node, or a network node may include the apparatus 900. In some aspects, the apparatus 900 includes a reception component 902, a transmission component 904, and a communication manager 150, which may be in communication with one another (for example, via one or more buses) . As shown, the apparatus 900 may communicate with another apparatus 906 (such as a UE, a network node, or another wireless communication device) using the reception component 902 and the transmission component 904.
[0120] In some aspects, the apparatus 900 may be configured to and / or operable to perform one or more operations described herein in connection with Figures 5-6. Additionally or alternatively, the apparatus 900 may be configured to and / or operable to perform one or more processes described herein. In some aspects, the apparatus 900 may include one or more components of the network node described above in connection with Figure 2.
[0121] The reception component 902 may receive communications, such as reference signals, control information, and / or data communications, from the apparatus 906. The reception component 902 may provide received communications to one or more other components of the apparatus 900, such as the communication manager 150. In some aspects, the reception component 902 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples) , and may provide the processed signals to the one or more other components. In some aspects, the reception component 902 may include one or more antennas, a modem, a demodulator, a MIMO detector, a receive processor, a controller / processor, and / or a memory of the network node described above in connection with Figure 2.
[0122] The transmission component 904 may transmit communications, such as reference signals, control information, and / or data communications, to the apparatus 906. In some aspects, the communication manager 150 may generate communications and may transmit the generated communications to the transmission component 904 for transmission to the apparatus 906. In some aspects, the transmission component 904 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 906. In some aspects, the transmission component 904 may include one or more antennas, a modem, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, and / or a memory of the network node described above in connection with Figure 2. In some aspects, the transmission component 904 may be co-located with the reception component 902 in a transceiver.
[0123] The communication manager 150 may transmit or may cause the transmission component 904 to transmit, while a UE is in an RRC connected state, a grant for a transmission that is to occur at a grant time. The communication manager 150 may transmit or may cause the transmission component 904 to transmit, while the UE is in the RRC connected state, a paging message. The UE may delay, while an inactive interval associated with the UE does not satisfy a configurable inactive interval threshold, release of the RRC connected state. In some aspects, the communication manager 150 may perform one or more operations described elsewhere herein as being performed by one or more components of the communication manager 150. The communication manager 150 may include a controller / processor, a memory, a scheduler, and / or a communication unit of the network node described above in connection with Figure 2.
[0124] The quantity and arrangement of components shown in Figure 9 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Figure 9. Furthermore, two or more components shown in Figure 9 may be implemented within a single component, or a single component shown in Figure 9 may be implemented as multiple, distributed components. Additionally or alternatively, a set of (one or more) components shown in Figure 9 may perform one or more functions described as being performed by another set of components shown in Figure 9.
[0125] The following provides an overview of some Aspects of the present disclosure:
[0126] Aspect 1: A method of wireless communication by a UE, comprising: receiving, while the UE is in an RRC connected state, a grant for a transmission that is to occur at a grant time; receiving, while the UE is in the RRC connected state, a paging message; and delaying, while an inactive interval associated with the UE does not satisfy a configurable inactive interval threshold, release of the RRC connected state.
[0127] Aspect 2: The method of Aspect 1, wherein delaying in the RRC connected state includes: refraining from performing a local RRC connection release procedure associated with the paging message.
[0128] Aspect 3: The method of any of Aspects 1-2, wherein the inactive interval is associated with a difference between a current time and the grant time.
[0129] Aspect 4: The method of Aspect 3, wherein the current time is a time at which the UE receives the paging message.
[0130] Aspect 5: The method of any of Aspects 1-4, wherein the grant is a first grant, wherein the transmission is a first transmission, and wherein the grant time is a first grant time, the method further comprising: receiving, while the inactive interval does not satisfy the configurable inactive interval threshold, a second grant for a second transmission that is to occur at a second grant time; and ignoring the paging message.
[0131] Aspect 6: The method of any of Aspects 1-5, further comprising: determining that the inactive interval satisfies the configurable inactive interval threshold; and performing a local RRC connection release procedure and a follow-up registration procedure.
[0132] Aspect 7: The method of any of Aspects 1-6, wherein the transmission is associated with voice traffic.
[0133] Aspect 8: The method of any of Aspects 1-7, wherein the transmission is associated with data traffic.
[0134] Aspect 9: An apparatus for wireless communication at a device, comprising a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of one or more of Aspects 1-8.
[0135] Aspect 10: A device for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors configured to perform the method of one or more of Aspects 1-8.
[0136] Aspect 11: An apparatus for wireless communication, comprising at least one means for performing the method of one or more of Aspects 1-8.
[0137] Aspect 12: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more of Aspects 1-8.
[0138] Aspect 13: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more of Aspects 1-8.
[0139] The foregoing disclosure provides illustration and description but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of the aspects.
[0140] As used herein, the term “component” is intended to be broadly construed as hardware or a combination of hardware and software. “Software” shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, or functions, among other examples, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. As used herein, a “processor” is implemented in hardware or a combination of hardware and software. It will be apparent that systems or methods described herein may be implemented in different forms of hardware or a combination of hardware and software. The actual specialized control hardware or software code used to implement these systems or methods is not limiting of the aspects. Thus, the operation and behavior of the systems or methods are described herein without reference to specific software code, because those skilled in the art will understand that software and hardware can be designed to implement the systems or methods based, at least in part, on the description herein.
[0141] As used herein, “satisfying a threshold” may, depending on the context, refer to a value being greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, or not equal to the threshold, among other examples.
[0142] Even though particular combinations of features are recited in the claims or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features may be combined in ways not specifically recited in the claims or disclosed in the specification. The disclosure of various aspects includes each dependent claim in combination with every other claim in the claim set. As used herein, a phrase referring to “at least one of” a list of items refers to any combination of those items, including single members. As an example, “at least one of: a, b, or c” is intended to cover a, b, c, a + b, a + c, b + c, and a + b + c, as well as any combination with multiples of the same element (for example, a + a, a + a + a, a + a + b, a + a + c, a +b + b, a + c + c, b + b, b + b + b, b + b + c, c + c, and c + c + c, or any other ordering of a, b, and c) .
[0143] No element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such. Also, as used herein, the articles “a” and “an” are intended to include one or more items and may be used interchangeably with “one or more. ” Further, as used herein, the article “the” is intended to include one or more items referenced in connection with the article “the” and may be used interchangeably with “the one or more. ” Furthermore, as used herein, the terms “set” and “group” are intended to include one or more items and may be used interchangeably with “one or more. ” Where only one item is intended, the phrase “only one” or similar language is used. Also, as used herein, the terms “has, ” “have, ” “having, ” and similar terms are intended to be open-ended terms that do not limit an element that they modify (for example, an element “having” A may also have B) . Further, the phrase “based on” is intended to mean “based, at least in part, on” unless explicitly stated otherwise. Also, as used herein, the term “or” is intended to be inclusive when used in a series and may be used interchangeably with “and / or, ” unless explicitly stated otherwise (for example, if used in combination with “either” or “only one of” ) .
Claims
1.A user equipment (UE) for wireless communication, comprising:a processing system that includes one or more processors and one or more memories coupled with the one or more processors, the processing system configured to cause the UE to:receive, while the UE is in a radio resource control (RRC) connected state, a grant for a transmission that is to occur at a grant time;receive, while the UE is in the RRC connected state, a paging message; anddelay, while an inactive interval associated with the UE does not satisfy a configurable inactive interval threshold, release of the RRC connected state.2.The UE of claim 1, wherein, to cause the UE to delay release of the RRC connected state, the processing system is configured to cause the UE to:refrain from performing a local RRC connection release procedure associated with the paging message.3.The UE of claim 1, wherein the inactive interval is associated with a difference between a current time and the grant time.4.The UE of claim 3, wherein the current time is a time at which the UE receives the paging message.5.The UE of claim 1, wherein the grant is a first grant, wherein the transmission is a first transmission, wherein the grant time is a first grant time, and wherein the processing system is further configured to cause the UE to:receive, while the inactive interval does not satisfy the configurable inactive interval threshold, a second grant for a second transmission that is to occur at a second grant time; andignore the paging message.6.The UE of claim 1, wherein the processing system is further configured to cause the UE to:determine that the inactive interval satisfies the configurable inactive interval threshold; andperform a local RRC connection release procedure and a follow-up registration procedure.7.The UE of claim 1, wherein the transmission is associated with voice traffic.8.The UE of claim 1, wherein the transmission is associated with data traffic.9.A method for wireless communication by a user equipment (UE) , comprising:receiving, while the UE is in a radio resource control (RRC) connected state, a grant for a transmission that is to occur at a grant time;receiving, while the UE is in the RRC connected state, a paging message; anddelaying, while an inactive interval associated with the UE does not satisfy a configurable inactive interval threshold, release of the RRC connected state.10.The method of claim 9, wherein delaying release of the RRC connected state includes:refraining from performing a local RRC connection release procedure associated with the paging message.11.The method of claim 9, wherein the inactive interval is associated with a difference between a current time and the grant time.12.The method of claim 11, wherein the current time is a time at which the UE receives the paging message.13.The method of claim 9, wherein the grant is a first grant, wherein the transmission is a first transmission, and wherein the grant time is a first grant time, the method further comprising:receiving, while the inactive interval does not satisfy the configurable inactive interval threshold, a second grant for a second transmission that is to occur at a second grant time; andignoring the paging message.14.The method of claim 9, further comprising:determining that the inactive interval satisfies the configurable inactive interval threshold; andperforming a local RRC connection release procedure and a follow-up registration procedure.15.The method of claim 9, wherein the transmission is associated with voice traffic.16.The method of claim 9, wherein the transmission is associated with data traffic.17.A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:one or more instructions that, when executed by one or more processors of a user equipment (UE) , cause the UE to:receive, while the UE is in a radio resource control (RRC) connected state, a grant for a transmission that is to occur at a grant time;receive, while the UE is in the RRC connected state, a paging message; anddelay, while an inactive interval associated with the UE does not satisfy a configurable inactive interval threshold, release of the RRC connected state.18.The non-transitory computer-readable medium of claim 17, wherein the one or more instructions, that cause the UE to delay release of the RRC connected state, cause the UE to:refrain from performing a local RRC connection release procedure associated with the paging message.19.The non-transitory computer-readable medium of claim 17, wherein the inactive interval is associated with a difference between a current time and the grant time.20.The non-transitory computer-readable medium of claim 19, wherein the current time is a time at which the UE receives the paging message.21.The non-transitory computer-readable medium of claim 17, wherein the grant is a first grant, wherein the transmission is a first transmission, wherein the grant time is a first grant time, and wherein the one or more instructions cause the UE to:receive, while the inactive interval does not satisfy the configurable inactive interval threshold, a second grant for a second transmission that is to occur at a second grant time; andignore the paging message.22.The non-transitory computer-readable medium of claim 17, wherein the one or more instructions further cause the UE to:determine that the inactive interval satisfies the configurable inactive interval threshold; andperform a local RRC connection release procedure and a follow-up registration procedure.23.The non-transitory computer-readable medium of claim 17, wherein the transmission is associated with voice traffic.24.The non-transitory computer-readable medium of claim 17, wherein the transmission is associated with data traffic.25.An apparatus for wireless communication, comprising:means for receiving, while the apparatus is in a radio resource control (RRC) connected state, a grant for a transmission that is to occur at a grant time;means for receiving, while the apparatus is in the RRC connected state, a paging message; andmeans for delaying, while an inactive interval associated with the apparatus does not satisfy a configurable inactive interval threshold, release of the RRC connected state.26.The apparatus of claim 25, wherein the means for delaying release of the RRC connected state includes:means for refraining from performing a local RRC connection release procedure associated with the paging message.27.The apparatus of claim 25, wherein the inactive interval is associated with a difference between a current time and the grant time.28.The apparatus of claim 27, wherein the current time is a time at which the apparatus receives the paging message.29.The apparatus of claim 25, wherein the grant is a first grant, wherein the transmission is a first transmission, and wherein the grant time is a first grant time, the apparatus further comprising:means for receiving, while the inactive interval does not satisfy the configurable inactive interval threshold, a second grant for a second transmission that is to occur at a second grant time; andmeans for ignoring the paging message.30.The apparatus of claim 25, further comprising:means for determining that the inactive interval satisfies the configurable inactive interval threshold; andmeans for performing a local RRC connection release procedure and a follow-up registration procedure.
Citation Information
Patent Citations
Paging management method and related product
CN111372310A
Fast connection release after paging response
CN114830807A
Method and system for preventing loss of connection state paging response
CN116170899A
Wireless device paging
CN116438882A
User device, radio base station, and radio communication method
US20200100312A1