Fast connection release after paging response

Abstract

Aspects of the present disclosure generally relate to wireless communications. In some aspects, when a user equipment (UE) is operating in an inactive or idle mode on a first radio access network (RAN) and when the UE is operating in a connected mode on a second RAN, a base station associated with the first RAN may send, and the UE may receive, a paging message. The UE may send a response to the base station associated with the first RAN rejecting the paging message, and the response may include information causing the base station to release the UE to the inactive or idle mode. Accordingly, the base station may send a radio resource control message to the UE, the radio resource control message including information causing the UE to be released to the inactive or idle mode on the first RAN. Numerous other aspects are provided.

Description

Technical Field

[0001] Aspects of the present disclosure relate generally to wireless communications and to techniques and apparatus for fast connection release after a paging response. Background Art

[0002] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). 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).

[0003] A wireless communication network may include multiple base stations (BSs) that can support communications for multiple user equipment (UEs). User equipment (UEs) can communicate with a base station (BS) via downlinks and uplinks. A downlink (or forward link) refers to the communication link from the BS to the UE, while an uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, access point (AP), radio head, transmit receive point (TRP), New Radio (NR) BS, 5G Node B, etc.

[0004] The aforementioned multiple access technologies have been adopted in various telecommunications standards to provide a common protocol that enables diverse user devices to communicate at municipal, national, regional, and even global levels. New Radio (NR), also known as 5G, is a set of enhancements to the LTE mobile standard promulgated by the Third Generation Partnership Project (3GPP). NR is designed to better support mobile broadband internet access by improving spectral efficiency, reducing costs, improving service, leveraging new spectrum, and integrating better with other open standards using orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink (DL) and CP-OFDM and / or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), as well as supporting beamforming, multiple-input, multiple-output (MIMO) antenna technology, and carrier aggregation. However, as demand for mobile broadband access continues to grow, there remains a need for further improvements to LTE and NR technologies. Preferably, these improvements should be applicable to other multiple access technologies and telecommunications standards that employ them. Summary of the Invention

[0005] In some aspects, a method of wireless communication performed by a user equipment (UE) may include: while operating in an inactive or idle mode on a first RAN and in a connected mode on a second RAN, receiving a paging message from a base station associated with a first radio access network (RAN); sending a response to the base station associated with the first RAN rejecting the paging message, wherein the response includes information causing the base station to release the UE to the inactive or idle mode; and receiving a radio resource control (RRC) message from the base station, the RRC message including information to release the UE to the inactive or idle mode on the first RAN.

[0006] In some aspects, a method of wireless communication performed by a base station may include: sending a paging message to a UE, the UE operating in an inactive or idle mode on a RAN associated with the base station; receiving a response from the UE rejecting the paging message, wherein the response includes information requesting release to the inactive or idle mode; sending an RRC message to the UE, the RRC message including information to release the UE to the inactive or idle mode; and forwarding the response to the paging message rejecting to a core network.

[0007] In some aspects, a UE for wireless communication may include a memory and one or more processors operably coupled to the memory. The memory and the one or more processors may be configured to: when operating in an inactive or idle mode on a first RAN and in a connected mode on a second RAN, receive a paging message from a base station associated with the first RAN; send a response to the base station associated with the first RAN rejecting the paging message, wherein the response includes information causing the base station to release the UE to the inactive or idle mode; and receive an RRC message from the base station, the RRC message including information causing the UE to release to the inactive or idle mode on the first RAN.

[0008] In some aspects, a base station for wireless communication may include a memory and one or more processors operably coupled to the memory. The memory and the one or more processors may be configured to: send a paging message to a UE operating in an inactive or idle mode on a RAN associated with the base station; receive a response from the UE rejecting the paging message, wherein the response includes information requesting release to the inactive or idle mode; send an RRC message to the UE, the RRC message including information requesting release to the inactive or idle mode; and forward the response rejecting the paging message to a core network.

[0009] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a UE, may cause the one or more processors to: when operating in an inactive or idle mode on the first RAN and in a connected mode on a second RAN, receive a paging message from a base station associated with the first RAN; send a response to the base station associated with the first RAN rejecting the paging message, wherein the response includes information causing the base station to release the UE to the inactive or idle mode; and receive an RRC message from the base station including information causing the UE to release to the inactive or idle mode on the first RAN.

[0010] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. When executed by one or more processors of a base station, the one or more instructions may cause the one or more processors to: send a paging message to a UE operating in an inactive or idle mode on a RAN associated with the base station; receive a response from the UE rejecting the paging message, wherein the response includes information requesting release to the inactive or idle mode; send an RRC message to the UE, the RRC message including information requesting release to the inactive or idle mode; and forward the response to the paging message rejecting to a core network.

[0011] In some aspects, an apparatus for wireless communication may include: means for receiving a paging message from a base station associated with the first RAN while operating in an inactive or idle mode on the first RAN and in a connected mode on a second RAN; means for sending a response to the base station associated with the first RAN rejecting the paging message, wherein the response includes information for the base station to release a UE to the inactive or idle mode; and means for receiving an RRC message from the base station, the RRC message including information to release the UE to the inactive or idle mode on the first RAN.

[0012] In some aspects, an apparatus for wireless communication may include: a component for sending a paging message to a UE, the UE operating in an inactive or idle mode on a RAN associated with a base station; a component for receiving a response from the UE rejecting the paging message, wherein the response includes information requesting release to the inactive or idle mode; a component for sending an RRC message to the UE, the RRC message including information to release the UE to the inactive or idle mode; and a component for forwarding the response to the paging message rejecting to a core network.

[0013] Aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and processing systems as generally described herein with reference to and illustrated by the accompanying figures and description.

[0014] The foregoing has outlined rather broadly the features and technical advantages of examples according to the present disclosure so that the following detailed description may be better understood. Additional features and advantages will be described hereinafter. The concepts and specific examples disclosed may be readily used as a basis for modifying or designing other structures for achieving the same purposes of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The features of the concepts disclosed herein, their organization and method of operation, and related advantages may be better understood from the following description when considered in conjunction with the accompanying drawings. Each of the figures is provided for the purpose of illustration and description and not as a definition of limitations on the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order that the above-described features of the present disclosure may be understood in detail, a more particular description of the content briefly summarized above may be given by reference to various aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that the drawings illustrate only certain typical aspects of the present disclosure and are therefore not to be considered limiting of its scope, as the description may admit to other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0016] Figure 1is a diagram illustrating an example of a wireless communication network according to aspects of the present disclosure.

[0017] Figure 2 is a diagram illustrating an example of a base station communicating with a UE in a wireless communication network according to aspects of the present disclosure.

[0018] Figure 3 is a diagram illustrating an example structure of a wireless communication network according to aspects of the present disclosure.

[0019] Figure 4 is a diagram illustrating example radio and baseband structures in a UE with multiple subscriber identity modules (SIMs) according to aspects of the present disclosure.

[0020] Figure 5 is a diagram illustrating an example in which a multi-SIM UE requests a quick release after responding to a paging message according to aspects of the present disclosure.

[0021] Figures 6A-6B is a diagram illustrating one or more examples of a fast release after a paging response according to aspects of the present disclosure.

[0022] Figure 7 is a diagram illustrating example processing performed, for example, by a UE according to aspects of the present disclosure.

[0023] Figure 8 is a diagram illustrating example processing performed, for example, by a base station according to aspects of the present disclosure. DETAILED DESCRIPTION

[0024] The various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms and should not be construed as being limited to any specific structure or function presented throughout the present disclosure. On the contrary, these aspects are provided so that the present disclosure will be comprehensive and complete, and will fully convey the scope of the present disclosure to those skilled in the art. Based on the teachings herein, it should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspects of the present disclosure disclosed herein, whether they are implemented independently of any other aspects of the present disclosure or are implemented in combination with any other aspects of the present disclosure. For example, any number of aspects set forth herein can be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such a device or method, that is, the device or method is practiced using other structures, functions, or structures and functions in addition to or different from the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the present disclosure disclosed herein can be embodied by one or more elements of the claims.

[0025] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, and / or the like (collectively, "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0026] It should be noted that although terminology commonly associated with 3G and / or 4G wireless technologies may be used herein for description, aspects of the present disclosure may be applicable to other generation-based communication systems, such as 5G and beyond, including NR technology.

[0027] Figure 1 is a diagram illustrating a wireless network 100 in which aspects of the present disclosure may be implemented. The wireless network 100 may be an LTE network or some other wireless network, such as a 5G or NR network. The wireless network 100 may include multiple base stations 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station BS is an entity that communicates with a user equipment (UE) and may also be referred to as a base station, NR BS, Node B, gNB, 5G Node B (NB), access point, transmit receive point (TRP), etc. Each BS may provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to a coverage area of ​​a BS and / or a BS subsystem serving that coverage area, depending on the context in which the term is used.

[0028] A BS may provide communication coverage for macro cells, pico cells, femto cells, and / or other types of cells. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by UEs with service subscriptions. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscriptions. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG)). A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In Figure 1In the example shown, BS 110a may be a macro BS for macrocell 102a, BS 110b may be a pico BS for picocell 102b, and BS 110c may be a femto BS for femtocell 102c. A BS may support one or more (e.g., three) cells. The terms "eNB," "base station," "NR BS," "gNB," "TRP," "AP," "Node B," "5G NB," and "cell" may be used interchangeably herein.

[0029] In some aspects, a cell may not necessarily be fixed, and the geographic area of ​​the cell may move depending on the location of the mobile BS. In some aspects, the BSs may be interconnected with each other and / or with one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces (such as direct physical connections, virtual networks, etc.) using any suitable transmission network.

[0030] The wireless network 100 may also include a relay station. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a BS or a UE) and transmit data transmissions to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that can relay transmissions for other UEs. Figure 1 In the example shown, a relay station BS 110d may communicate with a macro BS 110a and a UE 120d to facilitate communication between the BS 110a and the UE 120d. A relay station BS may also be referred to as a relay BS, a relay base station, a relay, or the like.

[0031] The wireless network 100 may be a heterogeneous network including different types of BSs, such as macro BSs, pico BSs, femto BSs, relay BSs, etc. These different types of BSs may have different transmit power levels, different coverage areas, and different impacts on interference in the wireless network 100. For example, a macro BS may have a higher transmit power level (e.g., 5 watts to 40 watts), while a pico BS, femto BS, and relay BS may have a lower transmit power level (e.g., 0.1 watt to 2 watts).

[0032] The network controller 130 may be coupled to a set of BSs and may provide coordination and control for these BSs. The network controller 130 may communicate with the BSs via a backhaul. The BSs may also communicate with each other directly or indirectly, for example, via a wireless or wired backhaul.

[0033] UEs 120 (e.g., 120a, 120b, 120c) may be dispersed throughout the wireless network 100, and each UE may be fixed or mobile. A UE may also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. A UE may be a cellular phone (e.g., a smartphone), 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 or instrument, a biosensor / device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring, a smart bracelet)), an entertainment device (e.g., a music or video device, or satellite radio, etc.), a vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a global positioning system device, or any other suitable device configured to communicate via a wireless or wired medium.

[0034] Some UEs may be considered machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc. that can communicate with a base station, another device (e.g., a remote device), or some other entity. A wireless node may provide, for example, a connection for or to a network (e.g., a wide area network such as the Internet or a cellular network) via a wired or wireless communication link. Some UEs may be considered Internet of Things (IoT) devices and / or may be implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs may be considered customer premises equipment (CPE). UE 120 may be included inside a housing that houses components of UE 120 (such as a processor component, a memory component, etc.).

[0035] In general, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific radio access technology (RAT) and can operate on one or more frequencies. RAT can also be referred to as radio technology, air interface, etc. Frequency can also be referred to as carrier, frequency channel, etc. Each frequency can support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0036] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) can communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary to communicate with each other). For example, the UEs 120 can communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, etc.), mesh networks, etc. In this case, the UEs 120 can perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by the base station 110.

[0037] As pointed out above, Figure 1 are provided as examples. Other examples can be found in the Figure 1 Different than described.

[0038] Figure 2 Shows that it can be Figure 1 1. Block diagram of a design 200 of base station 110 and UE 120 for one of the base stations and one of the UEs. Base station 110 may be equipped with T antennas 234a through 234t, and UE 120 may be equipped with R antennas 252a through 252r, where in general T ≥ 1 and R ≥ 1.

[0039] At base station 110, transmit processor 220 may receive data for one or more UEs from data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) the data for each UE based at least in part on the MCS(s) selected for the UE, and provide data symbols for all UEs. Transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI) and control information (e.g., CQI requests, grants, upper layer signaling, etc.), and provide overhead symbols and control symbols. Transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS)) and synchronization signals (e.g., primary synchronization signals (PSS) and secondary synchronization signals (SSS)). If applicable, the transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on ​​the data symbols, control symbols, overhead symbols, and / or reference symbols, and can provide T output symbol streams to T modulators (MOD) 232a through 232t. Each modulator 232 can process a corresponding output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 can further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a through 232t can be transmitted via T antennas 234a through 234t, respectively. According to various aspects described in more detail below, position coding can be used to generate synchronization signals to convey additional information.

[0040] At UE 120, antennas 252a through 252r may receive downlink signals from base station 110 and / or other base stations and may provide received signals to demodulators (DEMODs) 254a through 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. A MIMO detector 256 may obtain received symbols from all R demodulators 254a through 254r, perform MIMO detection on the received symbols if applicable, and provide detected symbols. A receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to a data sink 260, and provide decoded control information and system information to a controller / processor 280. The channel processor may determine reference signal received power (RSRP), received signal strength indicator (RSSI), reference signal received quality (RSRQ), channel quality indicator (CQI), etc. In some aspects, one or more components of UE 120 may be included in a housing.

[0041] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information from a controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.). The transmit processor 264 may also generate reference symbols for one or more reference signals. If applicable, the symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted to the base station 110. At the base station 110, uplink signals from the UE 120 and other UEs may be received by antennas 234, processed by demodulators 232, detected by MIMO detector 236 (if applicable), and further processed by a receive processor 238 to obtain decoded data and control information transmitted by the user equipment 120. The receive processor 238 may provide the decoded data to a data sink 239 and may provide the decoded control information to the controller / processor 240. The base station 110 may include a communication unit 244 and communicate with the network controller 130 via the communication unit 244. The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292.

[0042] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2Any other component(s) of the base station 110 may perform one or more techniques associated with a fast release after a paging response as described in more detail elsewhere herein. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component(s) of may perform or direct e.g. Figure 7 Processing 700, Figure 8 800, and / or other processes described herein. Memories 242 and 282 may store data and program codes for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include non-transitory computer-readable media storing one or more instructions for wireless communications. For example, when executed by one or more processors of base station 110 and / or UE 120, the one or more instructions may perform or direct, for example, Figure 7 Processing 700, Figure 8 The scheduler 246 may schedule data transmission by the UE on the downlink and / or uplink.

[0043] In some aspects, UE 120 may include means for receiving a paging message from base station 110 when operating in an inactive or idle mode on a first radio access network (RAN) associated with base station 110 and in a connected mode on a second RAN; means for sending a response to base station 110 rejecting the paging message, wherein the response includes information for base station 110 to release UE 120 to the inactive or idle mode; means for receiving an RRC message from base station 110 including information to release UE 120 to the inactive or idle mode on the first RAN, etc. In some aspects, such means may include means for transmitting a response to base station 110 rejecting the paging message, wherein the response includes information for base station 110 to release UE 120 to the inactive or idle mode. Figure 2 One or more components of UE 120 are described in conjunction with the description, such as controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, and the like.

[0044] In some aspects, the base station 110 may include means for sending a paging message to the UE 120 while the UE 120 is operating in an inactive or idle mode on the RAN associated with the base station 110; means for receiving a response from the UE 120 rejecting the paging message, wherein the response includes information requesting release to the inactive or idle mode; means for sending an RRC message to the UE 120, wherein the RRC message includes information to release the UE 120 to the inactive or idle mode; means for forwarding the response to the paging message rejecting to the core network, etc. In some aspects, such means may include means for transmitting a paging message to the core network; Figure 2 One or more components of base station 110 are described in conjunction with, such as antenna 234, DEMOD 232, MIMO detector 236, receive processor 238, controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, and the like.

[0045] As pointed out above, Figure 2 are provided as examples. Other examples can be found in the Figure 2 Different than described.

[0046] Figure 3 is a diagram illustrating an example structure 300 of a wireless communication network according to aspects of the present disclosure.

[0047] In some aspects, the structure 300 may include a radio access network (RAN), such as a next generation RAN (NG-RAN), which may include one or more base stations (such as base station 110) that communicate with a UE (such as UE 120) via a Uu interface. The Uu interface is a radio interface between the UE and the RAN. The structure 300 may also include a core network that provides communication between the RAN and a data network. The core network may include one or more devices that may act as servers, such as mobile network operator servers, cloud servers, third-party servers, servers that may provide data and / or services to the UE via applications on the UE, and the like. For example, the core network may provide communication between the RAN and the data network using an application function (AF) entity, a user plane function (UPF) entity, and the like via wired and / or wireless connections.

[0048] In some aspects, the core network may include a unified data management (UDM) entity to make relevant data available to the access and mobility management function (AMF) entity and the session management function (SMF) entity. For example, the UDM entity can store subscriber data and configuration files in the wireless communication network. The UDM entity can be used for fixed access, mobile access, etc. in the core network. The AMF entity manages UE network registration, manages mobility, maintains a non-access stratum (NAS) signaling connection with the UE, and manages the UE's registration process with the network. The SMF entity manages sessions, allocates IP addresses to UEs, and supports the establishment, modification, and / or release of communication sessions in the wireless communication network.

[0049] In some aspects, the UPF entity manages user traffic to and from the UE via the RAN and enforces quality of service (QoS). The UPF entity can serve as an anchor point for mobility within and between radio access technologies (RATs). The UPF entity can apply rules to packets, such as rules related to packet routing, service reporting, handling user plane QoS, etc. The UPF entity can determine the attributes of data for a specific application transmitted in a communication session. The UPF entity can receive information (e.g., information related to UE communications) from one or more RAN nodes (e.g., via an N4 interface with an SMF entity, an application program interface (API), etc.). In addition, the UPF entity can have an N3 interface that can be used to transmit downlink and uplink user plane traffic to and from one or more RAN nodes (e.g., the UPF entity can receive downlink user plane traffic to the UE from a server in the data network and transmit the downlink user plane traffic to one or more RAN nodes serving the UE, receive uplink user plane traffic from one or more RAN nodes serving the UE, etc.

[0050] In some aspects, the core network also includes a policy and control function (PCF) entity that implements charging rules, implements flow control rules, manages service priorities, manages QoS of user-subscribed services, and provides a policy framework that includes network slicing, roaming, packet processing, mobility management, etc. In some aspects, the core network may also include a unified data repository (UDR) entity that stores structured data for opening to network functions, and a network exposure function (NEF) entity that securely opens services, capabilities, and / or events in the wireless communication network to help other entities in the wireless communication network effectively discover network services and / or utilize network resources. In some aspects, the AF entity supports application functions, affects service routing, and interacts with the PCF entity. For example, the AF entity can determine whether the UE provides a preference for a network slicing policy set, and supports application influence on service routing, access to the NEF entity, policy control, etc.

[0051] In some aspects, while Long Term Evolution (LTE) uses Evolved Packet System (EPS) bearers, each assigned an EPS bearer identifier (ID), New Radio (NR) uses QoS flows, each identified by a QoS flow ID (QFI). A QoS flow is where policy and charging are enforced. All traffic within the same QoS flow can receive the same treatment. In the core network, a single user plane network function (UPF entity) is used to transport data between base stations associated with the RAN (e.g., gNBs) and the core network. Each QoS flow on the N3 interface can be mapped to a single General Packet Radio Service (GPRS) Tunneling Protocol (GTP) tunnel (GTP-U) for the user plane. The base station can map individual QoS flows to one or more dedicated radio bearers (DRBs), multicast radio bearers (MRBs), etc. A protocol data unit (PDU) session can contain multiple QoS flows and several DRBs, but only a single N3 GTP-U tunnel. DRBs, MRBs, etc. can transport one or more QoS flows. In summary, these entities allow user data traffic or other types of information to be sent on the user plane.

[0052] As pointed out above, Figure 3 are provided as examples. Other examples can be found in the Figure 3 Different than described.

[0053] Figure 4 is a diagram illustrating an example radio and baseband architecture in a UE with multiple subscriber identity modules (SIMs) according to aspects of the present disclosure. In some aspects, Figure 4 The radio and baseband architecture 400 shown may represent Figure 1-3 One possible configuration for UE 120 is shown and / or described in greater detail above.

[0054] In some aspects, such as Figure 4 As shown, the first SIM interface 402a can receive a first SIM (SIM-1) 404a associated with a first subscription, and the second SIM interface 402b can receive a second SIM (SIM-2) 404b associated with a second subscription. In some aspects, the first subscription and the second subscription can be for different wireless networks or for the same wireless network.

[0055] As used herein, the terms "SIM," "SIM card," "Subscriber Identity Module," "Global SIM," "USIM," and variations thereof may be used interchangeably to refer to a memory, which may be an integrated circuit or embedded in a removable card, soldered to a device, or the like, and which stores an International Mobile Subscriber Identity (IMSI), associated keys, and / or other information used to identify and / or authenticate a UE on a wireless network and enable communication services with the wireless network. Because the information stored in the SIM enables the UE to establish a communication link with a specific network for a specific communication service, just as the SIM and a communication network (and the services and subscriptions supported by that network) are generally associated with each other, the term "SIM" may also be used herein as a shorthand term for the communication services associated with and enabled by the information stored in a specific SIM.

[0056] In some aspects, the first SIM 404a and / or the second SIM 404b may be a Universal Integrated Circuit Card (UICC) configured with SIM and / or Universal SIM (USIM) applications, enabling access to GSM and / or UMTS networks. The UICC may also provide storage for a phone book and / or other suitable applications. Additionally or alternatively, the SIM may be an embedded UICC (eUICC) or embedded SIM (eSIM), a Universal SIM (USIM), a Removable Subscriber Identity Module (R-UIM), or the like. The first SIM 404a and / or the second SIM 404b may have a CPU, ROM, RAM, EEPROM, and I / O circuitry. An Integrated Circuit Card Identification (ICCID) or SIM serial number may be printed on the SIM card for identification. However, the SIM may be implemented in a portion of the UE's memory and does not need to be a separate or removable circuit, chip, or card. The SIM used in various aspects may store user account information, IMSI, SIM Application Toolkit (SAT) command set, and other network provisioning information, as well as provide storage for a phone book database containing user contact information. As part of the network provisioning information, the SIM may store a local identifier (eg, a System Identification Number (SID) / Network Identification Number (NID) pair, a Home Public Land Mobile Network (HPLMN) code, etc.) to indicate the SIM card network operating provider.

[0057] In some aspects, each SIM (e.g., the first SIM 404a and the second SIM 404b) can be associated with a baseband-RF resource chain that can include a baseband modem processor 416, which can perform baseband / modem functions for communications on at least one SIM. Further, in some aspects, the baseband-RF resource chain can include one or more amplifiers and radios, generally referred to herein as RF resources 418a, 418b (e.g., first RF resources 418a and second RF resources 418b). In some aspects, the baseband-RF resource chains can share the baseband modem processor 416 (e.g., where the baseband modem processor 416 performs baseband / modem functions for all SIMs on the UE). Additionally or alternatively, each baseband-RF resource chain can include a physically or logically separate baseband processor (e.g., baseband-1, baseband-2, etc.).

[0058] In some aspects, the RF resources 418a, 418b may include circuitry capable of performing transmit and receive functions for the associated SIMs 404a, 404b. For example, in some aspects, the RF resources 418a, 418b may include separate transmit and receive circuitry, or may include a transceiver that combines transmitter and receiver functions. The RF resources 418a, 418b may each be coupled to a wireless antenna (e.g., the first wireless antenna 420a or the second wireless antenna 420b). The RF resources 418a, 418b may also be coupled to the baseband modem processor 416. For simplicity, the first RF resource 418a (and associated components) may be associated with a first subscription, such as implemented by the first SIM 404a. For example, the first RF resource 418a may be configured to send and receive data via a first wireless connection. The second RF resource 418b may be associated with a second subscription, such as implemented by the second SIM 404b. For example, the second RF resource 418b may be configured to send and receive data via a second wireless connection.

[0059] In some aspects, the radio and baseband structure 400 may include an acquisition unit 428 configured to manage and / or schedule the use of RF resources 418a, 418b for an acquisition process. For example, the acquisition unit 428 may be configured to perform an acquisition process for a first subscription and a second subscription. In some aspects, the acquisition unit 428 may include (or be coupled to) at least one of a radio resource control (RRC) layer, a radio resource management (RRM) layer, a radio link control (RLC) layer, a medium access control (MAC) layer, a physical layer, and the like.

[0060] Hardware and / or software for one or more functions described herein may be incorporated into the radio and baseband architecture 400 during manufacturing, for example, as part of an original equipment manufacturer (OEM) configuration of a UE implementing the radio and baseband architecture 400. In some aspects, such hardware and / or software may be added to the radio and baseband architecture 400 after manufacturing, such as by installing one or more software applications onto a UE implementing the radio and baseband architecture 400. In some aspects, Figure 4 The illustrated UE implementing the radio and baseband architecture 400 may include additional SIM cards, SIM interfaces, RF resources associated with the additional SIM cards, and additional antennas for connecting to additional mobile networks.

[0061] As pointed out above, Figure 4 are provided as examples. Other examples can be found in the Figure 4 Different than described.

[0062] Figure 5 5 is a diagram illustrating an example 500 of a multi-SIM UE 510 requesting a fast release after responding to a paging message according to aspects of the present disclosure. Figure 5 As shown, the multi-SIM UE 510 may include multiple USIMs (USIM A and USIM B ), they can share common radio and baseband components (e.g., baseband modem processor 416, RF resources 418, wireless antenna 420, etc.). Figure 5 The illustrated multi-SIM UE 510 may represent an example of a multi-SIM multi-standby (MSMS) communication device. For example, the multi-SIM UE may be a dual-SIM dual-standby (DSDS) communication device, having two SIM cards and two corresponding subscriptions, both of which can be activated in standby mode (e.g., during RRC idle or inactive mode), but when one is in use (e.g., when the other is in RRC connected mode), the other is inactive. In another example, the multi-SIM UE 510 may be a triple-SIM triple-standby (TSTS) communication device, including three SIM cards and corresponding subscriptions, all of which can be activated in standby mode, but when the third is in use, the other two are inactive. In other examples, the multi-SIM UE 510 may have other suitable multi-SIM configurations, such as having four or more SIM cards, such that when one is in use, all others are inactive. In other words, because the multiple SIM cards share common radio and baseband components, only one can be operating in active mode (e.g., RRC connected mode) at a given time.

[0063] In some aspects, each USIM may be associated with a subscription to obtain wireless network services from a base station associated with a given cell. Figure 5 As shown, USIM A It can be composed of a core network 522 (CN A ) and Radio Access Network (RAN A )524 of the first wireless network 520 (serving USIM A RAN A 524 includes one or more RAN nodes (e.g., base stations, eNBs, gNBs, TRPs, etc.) that can broadcast the first wireless network 520 in the first serving cell. Figure 5 As further shown, USIM B It can be composed of a core network 532 (CN B ) and RAN 534 (RAN B ) of the second wireless network 530 (serving USIM B RAN B 534 includes one or more RAN nodes that can broadcast the second wireless network 530 in the second serving cell. The multi-SIM UE 510 can obtain wireless service from the first serving cell or the second serving cell.

[0064] For example, Figure 5 As shown in the figure numeral 550, the multi-SIM UE 510 can actively communicate with the core network 522 in a connected mode (e.g., RRC connected mode) through a first wireless network 520, and the first wireless connection is connected to a RAN node (e.g., a base station) in the RAN 524 associated with the first wireless network 520. The first wireless network 520 may correspond to the USIM A Furthermore, in some aspects, the multi-SIM UE 510 may reside on a second wireless network 530 (e.g., in RRC idle mode, inactive mode, etc.) via a second wireless connection connected to a RAN node in a RAN 534 associated with the second wireless network 530, which may correspond to a first subscription associated with the USIM B In some aspects, the RAN nodes in the first and second wireless networks 520, 530 can communicate with one or more nodes in the corresponding core networks 522, 532 via wired and / or wireless connections (e.g., via an N2 interface with an AMF entity, an N3 interface with a UPF entity, etc.).

[0065] like Figure 5As further shown by reference numeral 552, the multi-SIM UE 510 may periodically receive a USIM A Associated downlink data tune away in order to monitor the USIM B Accordingly, in some cases, as shown by reference numeral 554, when the USIM A Operating in connected mode and USIM B During operation in idle or inactive mode, the multi-SIM UE 510 may receive a message from the serving USIM B The RAN node in the second wireless network 530 receives the B In some cases, the multi-SIM UE 510 may decide not to enter connected mode on the second wireless network 530 (e.g., because the multi-SIM UE 510 is currently engaged in a high-priority service, such as a voice call, on the first wireless network 520, or the paging message relates to a low-priority service based at least in part on one or more policies). However, if the multi-SIM UE 510 does not send a response to the paging message or otherwise provide feedback regarding the paging message to the second wireless network 530, the second wireless network 530 may continue to send additional paging repetitions to the multi-SIM UE 510 (e.g., the lack of a response or feedback to the paging message may indicate that the multi-SIM UE 510 did not receive the paging message). This may waste resources of one or more devices in the core network 532 that initiate the additional paging repetitions, one or more devices in the RAN 534 that send the additional paging repetitions to the multi-SIM UE 510, and the multi-SIM UE 510 that receives and decodes the additional paging repetitions.

[0066] Accordingly, some aspects described herein provide techniques and apparatuses to enable multi-SIM UEs such as Figure 5 The multi-SIM UE 510 shown in FIG. 5 is capable of initiating a process of entering a connected mode in the second wireless network 530 in order to provide a response to reject the paging message, thereby providing feedback to ensure that the second wireless network 530 will not send additional paging repetitions. In addition, the multi-SIM UE may include information requesting a quick release to an inactive or idle mode in the response to the paging message. For example, as described above, the multi-SIM UE 510 may be an MSMS (e.g., DSDS, TSTS, etc.) communication device having multiple SIMs (e.g., USIMs) that share common radio and baseband components. A and USIM B ). Accordingly, if the multi-SIM UE 510 is serving USIM BThe second wireless network 530 enters the connected mode in order to send a response to the rejection paging message, then to the serving USIM A The radio connection of the first wireless network 520 will be released. A With USIM B A single Tx / Rx chain shared between the two devices, which disrupts the communication with the USIM A Accordingly, as shown by reference numeral 556, the UE may decide to send a response to reject the request for the USIM B In this way, for information about the USIM A Interruption of communications related to the associated first subscription may be reduced or avoided.

[0067] As pointed out above, Figure 5 are provided as examples. Other examples can be found in the Figure 5 Different than described.

[0068] Figures 6A-6B FIG is a diagram illustrating one or more examples of a quick release after a paging response according to aspects of the present disclosure. Figures 6A-6B As shown, example(s) 600 include a multi-SIM UE (hereinafter referred to as "UE" for simplicity), a RAN, and a core network. In some aspects, the UE can operate in an inactive or idle mode on a first wireless network including the RAN and the core network using a first subscription associated with a first SIM, and can simultaneously operate in a connected mode on a second wireless network using a second subscription associated with a second SIM. In some aspects, when the UE operates in an inactive or idle mode on the first wireless network including the RAN and the core network, and operates in a connected mode on the second wireless network, the UE can receive a paging message initiated from the core network from a base station in the RAN. Accordingly, Figures 6A-6B Different techniques are illustrated that a UE may employ to send a response rejecting a paging message to avoid additional paging repetitions from a first wireless network and to include fast release information in the response to the paging message to minimize disruption to connected mode operations on a second wireless network.

[0069] For example, Figure 6AAs shown in the figure numeral 610, the UE may send and the base station in the RAN may receive an RRC early data request message including a non-access stratum (NAS) paging response and fast release information. In some aspects, the NAS paging response may include information indicating that the UE is rejecting the paging message (e.g., does not want to enter connected mode on the first wireless network). In this way, the UE can confirm that the paging message was received and indicate that additional paging repetitions do not need to be sent to the UE. In addition, as described above, the RRC early data request message may include fast release information, which may include a fast release indication or a fast release cause value to indicate that the UE is requesting a fast release to an idle or inactive mode. Accordingly, the fast release information may be included in the RRC early data request message to indicate that the UE is to be released to the idle or inactive mode as quickly as possible, so that the UE can resume or continue connected mode operation on the second wireless network as quickly as possible.

[0070] Accordingly, if Figure 6A As further indicated by reference numeral 612, the base station in the RAN may send, and the UE may receive, an RRC Early Data Complete message including information for releasing the UE to an idle or inactive mode based at least in part on the fast release information provided in the RRC Early Data Request message. Furthermore, as indicated by reference numeral 614, after sending the RRC Early Data Complete message including information for releasing the UE to an idle or inactive mode, the base station in the RAN may forward, to the core network, a NAS paging response that rejects the paging message.

[0071] Accordingly, the base station in the RAN typically sends an RRC Early Data Complete message including information to release the UE to idle or inactive mode before sending a NAS paging response to the core network to ensure that the UE is released to idle or inactive mode as quickly as possible. For example, in some aspects, where fast release information is included in the RRC Early Data Request message, the base station in the RAN may immediately send an RRC Early Data Complete message to release the UE to idle or inactive mode, and may then forward the NAS paging response to the core network independently of the RRC Early Data Complete message including information to release the UE to idle or inactive mode. Alternatively, in some aspects, the UE may include a timer in the RRC Early Data Request message to indicate to the base station in the RAN that the sending of the RRC Early Data Complete message is to be delayed until after the timer expires. For example, the timer may be included to provide the UE with an opportunity to assess the status of the first wireless network and / or the second wireless network (e.g., where the UE is participating in a non-time-sensitive service on the second wireless network). In this case, after the timer expires, the base station may send an RRC Early Data Complete message to release the UE to idle or inactive mode, and may then send a NAS paging response to the core network. Additionally or alternatively, depending on the length of the timer, the base station may send a NAS paging response to the core network while waiting for the timer to expire, and upon expiration of the timer, immediately send an RRC Early Data Complete message to release the UE to idle or inactive mode.

[0072] generally, Figure 6A The illustrated techniques may be employed in situations where the UE supports Early Data Transmission (EDT), which typically allows one or more uplink and / or downlink transmissions to be performed before the RRC connection is fully established (e.g., during a random access channel procedure). In this manner, the UE may send a single message to reject the paging message and provide fast release information, which may reduce the amount of time that connected mode operation on the second wireless network is interrupted. However, in some situations, the UE may be a legacy UE that does not support the EDT feature. Accordingly, Figure 6B Another technique is illustrated that a UE can use to send a response to a rejection paging message to avoid additional paging repetitions from a first wireless network and to include fast release information in the response to the paging message to minimize disruption to connected mode operation on a second wireless network. As described herein, Figure 6B The illustrated techniques may be used by any UE, including legacy UEs and UEs supporting the EDT feature.

[0073] For example, Figure 6BAs shown in FIG620, based at least in part on the paging message, the UE may send, and the base station may receive, an RRC connection request message or an RRC connection recovery request message. Figure 6B As further indicated by reference numeral 622, a base station in the RAN may send, and a UE may receive, an RRC connection establishment message or an RRC connection recovery message.

[0074] like Figure 6B As further shown in FIG624 , the UE may send, and a base station in the RAN may receive, an RRC message including a NAS paging response and fast release information. For example, in some aspects, the NAS paging response and fast release information may be provided in an RRC Connection Setup Complete message, an RRC Connection Resumption Complete message, or the like. In some aspects, as described above, the NAS paging response may include information indicating that the UE is rejecting the paging message (e.g., does not want to enter connected mode on the first wireless network). In this manner, the UE may acknowledge receipt of the paging message and indicate that additional paging repetitions do not need to be sent to the UE. Furthermore, as described above, the fast release information provided in the RRC Connection Setup Complete message and / or the RRC Connection Resumption Complete message may include a fast release indication or a fast release cause value to indicate that the UE is requesting a fast release to idle or inactive mode. Accordingly, the fast release information may be included in the RRC Connection Setup Complete message and / or the RRC Connection Resumption Complete message to indicate that the UE will be released to idle or inactive mode as quickly as possible, enabling the UE to resume or continue connected mode operation on the second wireless network as quickly as possible.

[0075] Accordingly, if Figure 6B As further indicated by reference numeral 626, based at least in part on the fast release information provided in the RRC connection setup complete message and / or the RRC connection recovery complete message, the base station in the RAN may send, and the UE may receive, an RRC release message including information for releasing the UE to an idle or inactive mode. Furthermore, as indicated by reference numeral 628, after sending the RRC release message to the UE, the base station in the RAN may forward, to the core network, a NAS paging response that rejects the paging message.

[0076] Accordingly, in Figure 6BIn the illustrated technique, the base station in the RAN similarly sends an RRC Release message including information releasing the UE to idle or inactive mode before sending a NAS paging response to the core network, to ensure that the UE is released to idle or inactive mode as quickly as possible. For example, in some aspects, if fast release information is included in an RRC Connection Setup Complete message and / or an RRC Connection Recovery Complete message, the base station in the RAN may immediately send an RRC Release message releasing the UE to idle or inactive mode and may subsequently forward the NAS paging response to the core network independently of the RRC Release message. Alternatively, in some aspects, the UE may include a timer with the fast release information to indicate to the base station in the RAN that the sending of the RRC Release message is to be delayed until after the timer expires. For example, the timer may be included to provide the UE with an opportunity to assess the status of the first wireless network and / or the second wireless network (e.g., in the case where the UE is participating in non-time-sensitive services on the second wireless network). In this case, after the timer expires, the base station may send an RRC Release message to release the UE to idle or inactive mode and may then send a NAS paging response to the core network. Additionally or alternatively, depending on the length of the timer, the base station may send a NAS paging response to the core network while waiting for the timer to expire, and immediately send an RRC release message to the UE upon expiration of the timer.

[0077] As pointed out above, Figures 6A-6B are provided as examples. Other examples can be found in the Figures 6A-6B Different than described.

[0078] Figure 7 is a diagram illustrating an example process 700 performed, for example, by a UE, in accordance with aspects of the present disclosure. Example process 700 is an example of a UE (eg, UE 120, etc.) performing operations associated with a fast connection release following a paging response.

[0079] like Figure 7 As shown, in some aspects, process 700 may include, while operating in an inactive or idle mode on the first RAN and operating in a connected mode on the second RAN, receiving a paging message from a base station associated with the first RAN (block 710). For example, as described above, while operating in an inactive or idle mode on the first RAN and operating in a connected mode on the second RAN, the UE may receive a paging message from a base station associated with the first RAN (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, etc.).

[0080] like Figure 7As further shown, in some aspects, process 700 may include sending a response to the rejection of the paging message to a base station associated with the first RAN, wherein the response includes information that causes the base station to release the UE into an inactive or idle mode (block 720). For example, as described above, the UE may send a response to the rejection of the paging message to a base station associated with the first RAN (e.g., using controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, etc.). In some aspects, the response includes information that causes the base station to release the UE into an inactive or idle mode.

[0081] like Figure 7 As further shown, in some aspects, process 700 may include receiving an RRC message from a base station, the RRC message including information to release the UE to an inactive or idle mode on the first RAN (block 730). For example, as described above, the UE may receive an RRC message from a base station (e.g., using antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, controller / processor 280, etc.), the RRC message including information to release the UE to an inactive or idle mode on the first RAN.

[0082] Process 700 may include other aspects, such as any single aspect or any combination of aspects described below and / or elsewhere herein, in combination with one or more other processes.

[0083] In a first aspect, the response includes information causing the base station to release the UE to an inactive or idle mode before the base station forwards the response to a core network associated with the first RAN.

[0084] In a second aspect, alone or in combination with the first aspect, the response further comprises: a NAS paging response provided in an RRC Early Data Request message, an RRC Connection Setup Complete message, and / or an RRC Recovery Complete message.

[0085] In a third aspect, alone or in combination with one or more of the first and second aspects, the information causing the base station to release the UE to an inactive or idle mode includes: a fast release indication and / or a fast release cause value.

[0086] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the response includes a timer, which causes the base station to send an RRC message after expiration of the timer, the RRC message including information to release the UE to inactive or idle mode on the first RAN.

[0087] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the RRC message for information on releasing the UE to inactive or idle mode on the first RAN includes: an RRC early data complete message and / or an RRC release message.

[0088] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, process 700 includes resuming operation in connected mode on the second RAN based at least in part on receiving an RRC message including information to release the UE to inactive or idle mode on the first RAN.

[0089] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, a UE comprises a first SIM associated with a first subscription on a first RAN, a second SIM associated with a second subscription on a second RAN, and a set of radio and baseband components shared between the first SIM and the second SIM.

[0090] Although Figure 7 Example blocks of process 700 are shown, but in some aspects process 700 may include additional blocks, fewer blocks, different blocks, or different Figure 7 Additionally or alternatively, two or more of the blocks in process 700 may be executed in parallel.

[0091] Figure 8 is a diagram illustrating an example process 800, for example, performed by a base station, in accordance with aspects of the present disclosure. Example process 800 is an example of operations performed by a base station (eg, base station 110, etc.) associated with fast connection release following a paging response.

[0092] like Figure 8 As shown, in some aspects, process 800 may include sending a paging message to a UE that is operating in an inactive or idle mode on a RAN associated with the base station (block 810). For example, as described above, the base station may (e.g., using controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, etc.) send a paging message to a UE that is operating in an inactive or idle mode on a RAN associated with the base station.

[0093] like Figure 8As further shown, in some aspects, process 800 may include receiving a response from the UE rejecting the paging message, wherein the response includes information requesting release to an inactive or idle mode (block 820). For example, as described above, the base station may receive a response from the UE rejecting the paging message (e.g., using transmit processor 220, receive processor 238, controller / processor 240, memory 242, etc.). In some aspects, the response includes information requesting release to an inactive or idle mode.

[0094] like Figure 8 As further shown, in some aspects, process 800 may include sending an RRC message to the UE, the RRC message including information to release the UE to an inactive or idle mode (block 830). For example, as described above, the base station may (e.g., using controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, etc.) send an RRC message to the UE, the RRC message including information to release the UE to an inactive or idle mode.

[0095] like Figure 8 As further shown, in some aspects, process 800 may include forwarding a response to the rejection of the paging message to the core network (block 840). For example, as described above, the base station may (e.g., using controller / processor 240, transmit processor 220, TX MIMO processor 230, MOD 232, antenna 234, etc.) forward the response to the rejection of the paging message to the core network.

[0096] Process 800 may include other aspects, such as any single aspect or any combination of aspects described below and / or elsewhere herein, in combination with one or more other processes.

[0097] In a first aspect, after the RRC message is sent to the UE, a response rejecting the paging message is forwarded to the core network.

[0098] In a second aspect, alone or in combination with the first aspect, the response further comprises: a NAS paging response provided in an RRC Early Data Request message, an RRC Connection Setup Complete message, and / or an RRC Recovery Complete message.

[0099] In a third aspect, alone or in combination with one or more of the first and second aspects, the information requesting release to the inactive or idle mode includes: a fast release indication and / or a fast release cause value.

[0100] In a fourth aspect, alone or in combination with one or more of the first to third aspects, an RRC message is sent after expiration of a timer included in a response to a reject paging message, the RRC message including information to release the UE to inactive or idle mode.

[0101] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the RRC message including information to release the UE to inactive or idle mode includes: an RRC early data complete message and / or an RRC release message.

[0102] Although Figure 8 Example blocks of process 800 are shown, but in some aspects process 800 may include additional blocks, fewer blocks, different blocks, or different blocks. Figure 8 Additionally or alternatively, two or more of the blocks in process 800 may be executed in parallel.

[0103] 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 are possible in light of the above disclosure or may be acquired from practice of the aspects.

[0104] As used herein, the term "component" is intended to be broadly interpreted as hardware, firmware, and / or a combination of hardware and software. As used herein, a processor is implemented in hardware, firmware, and / or a combination of hardware and software.

[0105] As used herein, satisfying a threshold may refer to a value greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0106] It will be apparent that the systems and / or methods described herein can be implemented in various forms of hardware, firmware, and / or a combination of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit these aspects. Thus, the operation and behavior of the systems and / or methods are described herein without reference to specific software code—it should be understood that software and hardware can be designed to implement the systems and / or methods based, at least in part, on the description herein.

[0107] Although the specific combination of features is described in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. In fact, many of these features can be combined in a manner that is not specifically recorded in the claims and / or not specifically disclosed in the specification. Although each dependent claim listed below can be directly subordinate to only one claim, the disclosure of various aspects includes that each dependent claim is combined with each other claim in this group of claims. The phrase "at least one" in the list of items refers to any combination of those items including a single member. As an example, "at least one of a, b or c" is intended to cover a, b, c, ab, ac, bc and abc, as well as any combination with multiple identical elements (for example, aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc and ccc or any other sorting of a, b and c).

[0108] Unless explicitly described as such, any element, action or instruction used herein should not be interpreted as critical or necessary. In addition, as used herein, the articles "a" and "an" are intended to include one or more items and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more items (e.g., related items, unrelated items, a combination of related items and unrelated items, etc.), and can be used interchangeably with "one or more". In the case of only one item being meant, the phrase "only one" or similar language is used. In addition, as used herein, the terms "has", "have", "having" etc. are intended to be open terms. In addition, unless explicitly stated otherwise, the phrase "based on" is intended to mean "based at least in part on".

Claims

1. A method for wireless communication performed by a user equipment (UE), comprising: while operating in an inactive or idle mode on a first radio access network, RAN, and operating in a connected mode on a second RAN, receiving a paging message from a network node associated with the first RAN; sending a response to the network node rejecting the paging message, the response including information for the network node to release the UE to the inactive or idle mode; wherein the response includes a timer to instruct the network node to delay sending a message for releasing the UE to the inactive or idle mode on the first RAN until after the timer expires; as well as A radio resource control (RRC) message is received from the network node, the RRC message including information to release the UE to the inactive or idle mode on the first RAN.

2. The method of claim 1 , wherein the response comprises: The information causes the network node to release the UE into the inactive or idle mode before the network node forwards the response to a core network associated with the first RAN.

3. The method of claim 1 , wherein the response further comprises: A Non-Access Stratum Paging Response is provided in one or more of an RRC Early Data Request message or an RRC Connection Setup Complete message.

4. The method of claim 1 , wherein the information causing the network node to release the UE to the inactive or idle mode comprises: One or more of the Quick Release Indication or Quick Release Reason values.

5. The method of claim 1 , wherein the RRC message including the information for releasing the UE to the inactive or idle mode on the first RAN comprises: One or more of an RRC Early Data Complete message or an RRC Release message.

6. The method according to claim 1, further comprising: Operation in the connected mode is resumed on the second RAN based at least in part on receiving the RRC message including the information to release the UE to the inactive or idle mode on the first RAN.

7. The method according to claim 1, wherein the UE comprises: A first subscriber identity module (SIM) associated with a first subscription on the first RAN, a second SIM associated with a second subscription on the second RAN, and a set of radio and baseband components shared between the first SIM and the second SIM.

8. A method of wireless communication performed by a network node, comprising: sending a paging message to a user equipment (UE), the UE operating in an inactive or idle mode on a radio access network associated with the network node; receiving a response from the UE rejecting the paging message, the response including information requesting release to the inactive or idle mode; wherein the response includes a timer to instruct the network node to delay sending a message for releasing the UE to the inactive or idle mode until after the timer expires; sending a radio resource control (RRC) message to the UE, the RRC message including information for releasing the UE to the inactive or idle mode; and Forward the response of rejecting the paging message to a core network.

9. The method of claim 8, wherein after the RRC message is sent to the UE, the response rejecting the paging message is forwarded to the core network.

10. The method of claim 8, wherein the response further comprises: A Non-Access Stratum Paging Response is provided in one or more of an RRC Early Data Request message, an RRC Connection Setup Complete message, or an RRC Recovery Complete message.

11. The method of claim 8, wherein the information requesting release to the inactive or idle mode comprises: One or more of the Quick Release Indication or Quick Release Reason values.

12. The method according to claim 8, wherein The RRC message including the information to release the UE to the inactive or idle mode includes one or more of an RRC Early Data Complete message or an RRC Release message.

13. A user equipment (UE) for wireless communication, comprising: Memory; as well as one or more processors operatively coupled to the memory, the memory and the one or more processors configured to: while operating in an inactive or idle mode on a first radio access network, RAN, and operating in a connected mode on a second RAN, receiving a paging message from a network node associated with the first RAN; sending a response to the network node rejecting the paging message, the response including information for the network node to release the UE to the inactive or idle mode; wherein the response includes a timer to instruct the network node to delay sending a message for releasing the UE to the inactive or idle mode on the first RAN until after the timer expires; as well as A radio resource control message is received from the network node, the radio resource control message including information to release the UE to the inactive or idle mode on the first RAN.

14. A network node for wireless communication, comprising: Memory; as well as one or more processors operatively coupled to the memory, the memory and the one or more processors configured to: sending a paging message to a user equipment (UE), the UE operating in an inactive or idle mode on a radio access network associated with the network node; receiving a response from the UE rejecting the paging message, the response including information requesting release to the inactive or idle mode; wherein the response includes a timer to instruct the network node to delay sending a message for releasing the UE to the inactive or idle mode until after the timer expires; sending a radio resource control message to the UE, wherein the radio resource control message includes information for releasing the UE to the inactive or idle mode; as well as Forward the response of rejecting the paging message to a core network.

15. A non-transitory computer-readable medium storing one or more instructions for wireless communication, the one or more instructions comprising: One or more instructions that, when executed by one or more processors of a user equipment (UE), cause the one or more processors to perform the following operations: while operating in an inactive or idle mode on a first radio access network, RAN, and operating in a connected mode on a second RAN, receiving a paging message from a network node associated with the first RAN; sending a response to the network node rejecting the paging message, the response including information for the network node to release the UE to the inactive or idle mode; wherein the response includes a timer to instruct the network node to delay sending a message for releasing the UE to the inactive or idle mode on the first RAN until after the timer expires; as well as A radio resource control message is received from the network node, the radio resource control message including information to release the UE to the inactive or idle mode on the first RAN.

16. A non-transitory computer-readable medium storing one or more instructions for wireless communication, the one or more instructions comprising: One or more instructions that, when executed by one or more processors of a network node, cause the one or more processors to: sending a paging message to a user equipment (UE), the UE operating in an inactive or idle mode on a radio access network associated with the network node; receiving a response from the UE rejecting the paging message, the response including information requesting release to the inactive or idle mode; wherein the response includes a timer to instruct the network node to delay sending a message for releasing the UE to the inactive or idle mode until after the timer expires; sending a radio resource control message to the UE, wherein the radio resource control message includes information for releasing the UE to the inactive or idle mode; as well as Forward the response of rejecting the paging message to a core network.

17. An apparatus for wireless communication, comprising: means for receiving a paging message from a network node associated with a first radio access network, RAN, while operating in an inactive or idle mode on the first RAN and in a connected mode on a second RAN; means for sending a response to the network node rejecting the paging message, the response including information causing the network node to release the apparatus into the inactive or idle mode; wherein the response includes a timer to instruct the network node to delay sending a message for releasing the apparatus to the inactive or idle mode on the first RAN until after expiration of the timer; as well as means for receiving a radio resource control message from the network node, the radio resource control message comprising information to release the UE to the inactive or idle mode on the first RAN.

18. An apparatus for wireless communication, comprising: means for sending a paging message to a user equipment, UE, said UE operating in an inactive or idle mode on a radio access network associated with said apparatus; means for receiving a response from the UE rejecting the paging message, the response including information requesting release to the inactive or idle mode; wherein the response includes a timer to instruct the apparatus to delay sending a message for releasing the UE into the inactive or idle mode until after expiration of the timer; means for sending a radio resource control message to the UE, the radio resource control message including information for releasing the UE to the inactive or idle mode; and The component is configured to forward the response of rejecting the paging message to a core network.

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