Method, device, and system for adjusting UE capabilities for a dual-active state

Abstract

The present disclosure describes methods, systems, and devices for adjusting user equipment (UE) capabilities for a dual-active state. One method includes transmitting, by the UE, a first message to a network, the first message including a first indicator, the first indicator indicating the UE capability limitation to the network. Another method includes receiving, by the network, a first message from the UE, the first message including the first indicator, the first indicator indicating the UE capability limitation to the network.

Description

[Technical Field]

[0001] The present disclosure relates generally to wireless communications, and more particularly to methods, devices, and systems for adjusting user equipment (UE) capabilities for dual-active situations. [Background technology]

[0002] Wireless communication technologies are moving the world towards an increasingly connected and networked society. High-speed and low-latency wireless communications depend on efficient network resource management and allocation between user equipment and wireless access network nodes (including, but not limited to, base stations). New generation networks are expected to provide high-speed, low-latency, and ultra-reliable communication capabilities to meet requirements from various industries and users.

[0003] Due to fifth generation (5G) mobile communication technology, user equipment (UE), such as a smartphone, may register and connect to multiple network nodes simultaneously.

[0004] The present disclosure describes various embodiments that may address at least some of the problems / challenges associated with existing systems and for adjusting user equipment (UE) capabilities and improving performance of wireless communications. Summary of the Invention [Means for solving the problem]

[0005] This document relates to methods, systems, and devices for wireless communications, and more particularly to methods, systems, and devices for adjusting user equipment (UE) capabilities for dual-active situations.

[0006] In one embodiment, the present disclosure describes a method for wireless communication, the method including transmitting, by a user equipment (UE), a first message to a network, the first message including a first indicator, the first indicator indicating a UE capability limitation to the network.

[0007] In another embodiment, the present disclosure describes a method for wireless communication, the method including receiving, by a network, a first message from a user equipment (UE) including a first indicator, the first indicator indicating to the network a UE capability limitation.

[0008] In some other embodiments, an apparatus for wireless communication may include a memory storing instructions and a processing circuit in communication with the memory, the processing circuit being configured, when executing the instructions, to perform the above-described method.

[0009] In some other embodiments, a device for wireless communication may include a memory storing instructions and a processing circuit in communication with the memory, the processing circuit being configured, when executing the instructions, to perform the above-described method.

[0010] In some other embodiments, a computer-readable medium includes instructions that, when executed by a computer, cause the computer to perform the above-described method. The computer-readable medium may be referred to as a non-transitory computer-readable medium (CRM), which stores data for the long term, such as a flash drive or compact disc (CD), or for the short term in the presence of power, such as a memory device or random access memory (RAM).

[0011] These and other aspects and their implementations are described in more detail in the drawings, description, and claims. [Brief explanation of the drawings]

[0012] [Figure 1]1 illustrates an example of a wireless communication system including two or more network nodes and one or more user equipments.

[0013] [Figure 2] 1 illustrates an example of a network node.

[0014] [Figure 3] 1 illustrates an example of a user device.

[0015] [Figure 4] 1 illustrates a flow diagram of a method for wireless communication.

[0016] [Figure 5] 1 illustrates a flow diagram of a method for wireless communication.

[0017] [Figure 6] 1 shows a schematic diagram of an exemplary embodiment for wireless communication.

[0018] [Figure 7] 1 shows a schematic diagram of another exemplary embodiment for wireless communication.

[0019] [Figure 8] 1 shows a schematic diagram of another exemplary embodiment for wireless communication.

[0020] [Figure 9] 1 shows a schematic diagram of another exemplary embodiment for wireless communication. DETAILED DESCRIPTION OF THE INVENTION

[0021] The present disclosure will now be described in detail with reference to the accompanying drawings which form a part hereof and which show, by way of illustration, specific examples of embodiments. It should be noted, however, that the present disclosure may be embodied in many different forms, and therefore, it is not intended that the subject matter protected or claimed be construed as limited to any of the embodiments described below.

[0022] Throughout this specification and the claims, terms may have subtly different meanings suggested or implied by context beyond their explicitly stated meanings. Similarly, the phrases "in one embodiment" or "in some embodiments" used herein do not necessarily refer to the same embodiment, and the phrases "in another embodiment" or "in other embodiments" used herein do not necessarily refer to different embodiments. The phrases "in one implementation" or "in some implementations" used herein do not necessarily refer to the same implementation, and the phrases "in another implementation" or "in other implementations" used herein do not necessarily refer to different implementations. For example, it is intended that the claimed subject matter include any whole or partial combination of example embodiments or implementations.

[0023] Generally, terminology can be understood, at least in part, from its usage in context. For example, terms such as "and," "or," and "and / or," as used herein, can include a variety of meanings that may depend, at least in part, on the context in which such terms are used. Typically, "or," when used to relate a list such as A, B, or C, is intended to mean A, B, and C, which are used herein in an inclusive sense, as well as A, B, or C, which are used herein in an exclusive sense. Furthermore, the terms "one or more" or "at least one," as used herein, can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," "the," and the like, can also be understood to convey a singular usage or to convey a plural usage, depending, at least in part, on the context. Additionally, it is understood that the terms "based on" or "determined by" are not necessarily intended to convey an exclusive set of factors, but instead may, again at least in part depending on the context, take into account additional factors not necessarily explicitly stated.

[0024] The present disclosure describes methods and devices for adjusting user equipment (UE) capabilities for a dual-active state.

[0025] New generation (NG) mobile communication systems are moving the world towards an increasingly connected and networked society. High-speed and low-latency wireless communications depend on efficient network resource management and allocation between user equipment and wireless access network nodes (including, but not limited to, base stations). New generation networks are expected to provide high-speed, low-latency, and ultra-reliable communications capabilities and meet requirements from various industries and users.

[0026] This disclosure describes various embodiments for coordinating multiple networks in a dual-active state. Under one or more scenarios, a user equipment (UE) may simultaneously connect to two or more network nodes. The network nodes may include, for example, one or more radio access network (RAN) nodes and / or one or more core network (CN) nodes. In one implementation, a UE may simultaneously connect to two network nodes, which may be referred to as a "dual-active state," in which the UE and / or one or more network nodes need to coordinate multiple connections to provide an efficient system in one or more scenarios.

[0027] One scenario may include, for a UE with a Multi-Subscriber Identity Module (Multi-SIM) (or Multi-Universal Subscriber Identity Module (Multi-USIM)), the UE may connect to multiple networks simultaneously. In another scenario, a UE with a single SIM may connect to multiple networks simultaneously. Another scenario may include a roaming UE may connect multiple networks for different slices.

[0028] When a UE is configured to connect to multiple networks simultaneously, the UE capabilities may need to be coordinated. In some implementations involving radio access capability signaling (RACS), the UE radio access capabilities may be packaged as a predefined or network-defined UE capability ID.

[0029] In various embodiments, with respect to Multi-SIM (or Multi-USIM), the UE may simultaneously connect to multiple networks for different cases.

[0030] In some implementations where paging is received on a second subscriber identity module (SIM2) when a first subscriber identity module (SIM1) is in a connected state, this can be solved by time division multiplexing (TDM) (e.g., by reserving a scheduling gap for SIM2). If there is no simultaneous connection to two networks, there may be no coordination for that. However, for a dual receive / transmit (RX) UE, this scheme may affect the performance of SIM1 by reserving a scheduling gap with the paging period. Another solution for dual RX UEs is to reserve a portion of radio frequency or physical (RF / PHY) resources for paging reception. In some implementations with a short dual connected state, SIM1 may be in a connected state, and SIM2 needs to perform some mobility updates (e.g., periodic registration, moving to a new registration area, or responding to paging). UEs may require capability coordination during a short dual connected state. In some implementations with a long dual connected state, the UE may have a voice call on SIM1 while having some other data services on SIM2. The UE may require capability coordination.

[0031] There may be several problems / challenges that need to be solved. For example, the hardware capabilities of a multi-SIM (or multi-USIM) UE may be shared by two or more SIMs. To use the hardware efficiently and economically, the associated capabilities need to be dynamically divided among the multiple SIMs. This may lead to temporary hardware conflicts. For example, a UE may be connected to one network (network A) and have some capability limitations on another network (network B). Therefore, the UE needs to indicate the capability limitations to network B when the UE enters a connected state with network B.

[0032] The present disclosure describes various embodiments for adjusting user equipment (UE) capabilities for dual-active states, addressing at least one of the aforementioned problems / challenges, providing a solution, and / or improving performance of wireless communications.

[0033] FIG. 1 shows a wireless communication system 100 including two or more wireless network nodes (118 and 119) and one or more user equipments (UEs) (110, 111, 112).

[0034] With respect to fifth-generation mobile communication technology, a UE 110, e.g., a smartphone, may have a single subscriber identity module (SIM) or multiple subscriber identity modules (Multi-SIM). If the UE has a single SIM, the UE may connect to one network node 118, e.g., a radio access network (RAN) node and / or a core network (CN) node, or may connect to multiple network nodes (118 and 119), e.g., two RAN nodes and / or two CN nodes. If the UE has Multi-SIM, the UE may connect to multiple network nodes (118 and 119), e.g., two RAN nodes, two CN nodes, and / or one RAN node and one CN node.

[0035] The wireless network nodes (118 and 119) may include network base stations, which in a mobile communication context may be nodeBs (NBs, e.g., eNBs or gNBs). Each of the UEs (110, 111, and / or 112) may wirelessly communicate with the wireless network nodes (118 and / or 119) via one or more radio channels 115. For example, a first UE 110 may, during a certain period of time, wirelessly communicate with a first network node 118 via one channel including multiple radio channels, and during another period of time or simultaneously at the same time, the first UE 110 may wirelessly communicate with a second network node 119 via one channel including multiple radio channels.

[0036] This disclosure describes various embodiments for coordinating user equipment (UE) capabilities for a dual-active state for at least one scenario, including but not limited to the scenarios described above. This disclosure describes methods, systems, and storage media for how a UE and / or one or more network nodes coordinate UE capabilities (e.g., UE capability restriction information) between the UE and multiple network nodes.

[0037] 2 illustrates an example of an electronic device 200 for implementing a network node or a network base station. The example electronic device 200 may include radio transmit / receive (Tx / Rx) circuitry 208 for transmitting / receiving communications with UEs and / or other base stations. The electronic device 200 may also include network interface circuitry 209 for allowing the base station to communicate with other base stations and / or a core network, e.g., optical or wired interconnects, Ethernet, and / or other data transmission media / protocols. The electronic device 200 may optionally include an input / output (I / O) interface 206 for communicating with an operator, etc.

[0038] Electronic device 200 may also include system circuitry 204. System circuitry 204 may include processor(s) 221 and / or memory 222. Memory 222 may include operating system 224, instructions 226, and parameters 228. Instructions 226 may configure one or more of processors 221 to perform the functions of a network node. Parameters 228 may include parameters to support execution of instructions 226. For example, the parameters may include network protocol settings, bandwidth parameters, radio frequency mapping assignments, and / or other parameters.

[0039] 3 shows an example of an electronic device for implementing a terminal device 300 (e.g., user equipment (UE)). The UE 300 may be a mobile device, such as a smartphone or a mobile communication module located in a vehicle. The UE 300 may include a communication interface 302, a system circuit 304, an input / output interface (I / O) 306, a display circuit 308, and storage 309. The display circuit may include a user interface 310.

[0040] The system circuitry 304 may include any combination of hardware, software, firmware, or other logic / circuitry. The system circuitry 304 may be implemented, for example, using one or more systems on a chip (SoC), application-specific integrated circuits (ASICs), discrete analog and digital circuits, and other circuits. The system circuitry 304 may be part of the implementation of any desired functionality in the UE 300. In this regard, the system circuitry 304 may include, by way of example, logic to facilitate: decoding and playing music and video, e.g., MP3, MP4, MPEG, AVI, FLAC, AC3, or WAV; executing applications; accepting user input; storing and retrieving application data; establishing, maintaining, and terminating data connections, such as for cellular phone calls or Internet connections; establishing, maintaining, and terminating wireless network connections, Bluetooth® connections, or other connections; and displaying related information on the user interface 310. The user interface 310 and input / output (I / O) interface 306 may include a graphical user interface, a touch-sensitive display, haptic feedback or other tactile output, voice or facial recognition input, buttons, switches, speakers, and other user interface elements. Further examples of the I / O interface 306 may include microphones, video and still image cameras, temperature sensors, vibration sensors, rotation and orientation sensors, headset and microphone input / output jacks, universal serial bus (USB) connectors, memory card slots, radiation sensors (e.g., IR sensors), and other types of inputs.

[0041] Referring to FIG. 3, the communications interface 302 may include radio frequency (RF) transmit (Tx) and receive (Rx) circuitry 316 that handles the transmission and reception of signals via one or more antennas 314. The communications interface 302 may include one or more transceivers. A transceiver may be a wireless transceiver that includes modulation / demodulation circuitry, digital-to-analog converters (DACs), shaping tables, analog-to-digital converters (ADCs), filters, waveform shapers, filters, preamplifiers, power amplifiers, and / or other logic for transmitting and receiving via one or more antennas or (in the case of some devices) over a physical (e.g., wired) medium. The transmitted and received signals may conform to any of a wide variety of formats, protocols, modulations (e.g., QPSK, 16-QAM, 64-QAM, or 256-QAM), frequency channels, bit rates, and coding. As one specific example, communication interface 302 may include a transceiver supporting transmission and reception in 2G, 3G, BT, WiFi, Universal Mobile Telecommunications System (UMTS), High Speed ​​Packet Access (HSPA)+, 4G / Long Term Evolution (LTE), 5G standards, and / or further developed standards. However, the techniques described below are also applicable to other wireless communication technologies, whether they originate from the 3rd Generation Partnership Project (3GPP), GSM Association, 3GPP2, IEEE, or other partnerships or standards bodies.

[0042] 3 , the system circuitry 304 may include one or more processors 321 and memory 322. The memory 322 stores, for example, an operating system 324, instructions 326, and parameters 328. The processor 321 is configured to execute the instructions 326 to perform desired functions for the UE 300. The parameters 328 may provide and define configuration and operational options in the instructions 326. The memory 322 may also store any BT, WiFi, 3G, 4G, 5G, 6G, or other data that the UE 300 will transmit or receive via the communication interface 302. In various implementations, system power for the UE 300 may be supplied by a power storage device, such as a battery or a transformer.

[0043] The present disclosure describes several embodiments below that may be implemented in part or in whole in the network base stations and / or user equipment described above in FIGS.

[0044] 4, the present disclosure describes various embodiments of a method 400 for wireless communication. The method 400 may include transmitting 410, by a user equipment (UE), a first message to a network, the first message including a first indicator, the first indicator indicating to the network a UE capability limitation.

[0045] 5, the present disclosure describes various embodiments of a method 500 for wireless communication. The method 500 may include receiving 510, by a network, a first message from a user equipment (UE) including a first indicator, the first indicator indicating to the network a UE capability limitation.

[0046] Although not limiting to the present disclosure, various embodiments described below may use a UE with multiple SIMs. These embodiments are examples and are not limiting to the present disclosure, which may also apply to other scenarios in which a UE connects to two networks simultaneously.

[0047] In some implementations, in addition to some or combinations of the implementations or embodiments described in this disclosure, the UE is equipped with a multi-universal subscriber identity module (Multi-USIM) that corresponds to the first subscription and the second subscription.

[0048] In some implementations, in addition to some or combinations of the implementations or embodiments described in this disclosure, the first message includes one of message 1 (Msg1), message A (MsgA), message 3 (Msg3), or message 5 (Msg5).

[0049] In some implementations, in addition to some or combinations of the implementations or embodiments described in this disclosure, method 400 may include, before the UE sends the first message to the network, the UE being in an idle state with the network; and / or the UE configuring to establish a connection with the network.

[0050] In some implementations, in addition to some or combinations of the implementations or embodiments described in this disclosure, the first message includes one of the following: a radio resource control (RRC) setup request message, or an RRC setup complete message.

[0051] In some implementations, in addition to some or combinations of the implementations or embodiments described in this disclosure, method 400 may include, before the UE sends the first message to the network, the UE being in an inactive state with the network; and / or the UE being configured to resume connection with the network.

[0052] In some implementations, in addition to some or combinations of the implementations or embodiments described in this disclosure, the first message includes one of a Radio Resource Control (RRC) Resume Request message or an RRC Resume Complete message.

[0053] In some implementations, further to any or a combination of the implementations or embodiments described in this disclosure, the first indicator includes a field that indicates a capability limitation of the UE to the network.

[0054] In some implementations, further to any or a combination of implementations or embodiments described in this disclosure, in response to transmitting the first message including the first indicator, the UE receives a second message from the network including a second indicator, the second indicator indicating a request for the UE to report UE capability limitations.

[0055] In some implementations, in addition to some or combinations of the implementations or embodiments described in this disclosure, the second message includes one of an RRC message or a Medium Access Control Control Element (MAC CE); and / or the RRC message includes a reconfiguration message.

[0056] In some implementations, in addition to any or a combination of the implementations or embodiments described in this disclosure, in response to receiving the second message, the UE transmits a third message to the network that includes UE capability restriction information.

[0057] In some implementations, in addition to any or a combination of the implementations or embodiments described in this disclosure, in response to sending the third message including the UE capability restriction information, the UE receives a fourth message from the network to reconfigure the UE.

[0058] In some implementations, in addition to some or combinations of the implementations or embodiments described in this disclosure, the second indicator includes a field to request the UE to report the capacity limitation to the network.

[0059] In some implementations, in addition to some or combinations of the implementations or embodiments described in this disclosure, the method 400 may include, before the UE transmits the first message to the network, the UE receiving system information broadcast by the network, wherein the system information includes a third indicator indicating that the network supports the capacity restriction indication.

[0060] In some implementations, in addition to some or combinations of the implementations or embodiments described in this disclosure, the system information includes System Information Block 1 (SIB1).

[0061] In some implementations, in addition to some or combinations of the implementations or embodiments described in this disclosure, the third indicator includes a field to indicate at least one of whether the UE is permitted to send a capability restriction indication and / or whether the network supports capability restriction reporting.

[0062] In some implementations, in addition to some or combinations of the implementations or embodiments described in this disclosure, the first message includes one of a Radio Resource Control (RRC) Resume Request message, an RRC Resume Complete message, an RRC Setup Request message, or an RRC Setup Complete message.

[0063] In some implementations, in addition to any or a combination of the implementations or embodiments described in this disclosure, in response to receiving the first message including the indicator, the network sends a second message to the UE including a second indicator, the second indicator indicating a request for the UE to report the UE capability limitation.

[0064] In some implementations, in addition to any or a combination of the implementations or embodiments described in this disclosure, in response to sending the second message, the network receives a third message from the UE that includes UE capability restriction information.

[0065] In some implementations, in addition to any or a combination of the implementations or embodiments described in this disclosure, in response to receiving the third message including the UE capability restriction information, the network sends a fourth message to reconfigure the UE.

[0066] In some implementations, in addition to some or combinations of the implementations or embodiments described in this disclosure, the method 500 may include: the network receiving a first message from the UE; the network broadcasting system information to the UE, the system information including a third indicator indicating that the network supports the capacity restriction indication.

[0067] This disclosure describes various exemplary embodiments for adjusting user equipment (UE) capabilities for a dual-active state, which serve as examples and do not impose any limitations on this disclosure.

[0068] Various embodiments address at least the issue of how a UE indicates a temporary capacity limitation during a connection establishment procedure. The UE may send an early indication indicating that there is a temporary capacity limitation before reconfiguring the UE. The UE may send the early indication in a message during a connection setup or connection resumption procedure. As non-limiting examples, the message may include Msg1, MsgA, Msg3, or Msg5. Msg3 may include an RRC Setup Request message or an RRC Restart Request message; and / or Msg5 may include an RRC Setup Complete message or an RRC Restart Complete message.

[0069] 6, the UE (680) may include an early indication indicating temporary capacity restriction in Msg3 in step 602 (or step 602A) or in Msg5 in step 604 (or step 604A). The UE 680 may include a SIM1 Access Stratum (AS) 682 and a SIM2 AS 684, which are configured to connect to SIM1 e / gNB A 692 and SIM2 e / gNB B 694, respectively.

[0070] Referring to step 600, the UE may be in a connected state with network A (692) and the UE may be in an idle or inactive state with network B.

[0071] Referring to step 601, the UE may need to establish a connection with network B (when the UE was in an idle state with network B); or the UE may need to resume a connection with network B (when the UE was in an inactive state with network B).

[0072] Steps 602, 603 and 604 may be performed when the UE is in an idle state with network B and needs to establish a connection with limited capabilities.

[0073] Referring to step 602, the UE may send an RRC setup request message (or Msg3) to network B. Referring to step 603, in response to receiving the RRC setup request message, network B may send an RRC setup message. Referring to step 604, in response to receiving the RRC setup message, the UE sends an RRC setup complete message (or Msg5) to network B. In some implementations, the RRC setup request message in step 602 may include a UE capability restriction indication. In some other implementations, the RRC setup complete message in step 604 may include a UE capability restriction indication.

[0074] Steps 602A, 603A, and 604A may be performed when the UE is in an inactive state with network B and needs to resume a connection with limited capabilities.

[0075] Referring to step 602A, the UE may send an RRC Resume Request message (or Msg3) to network B. Referring to step 603A, in response to receiving the RRC Resume Request message, network B may send an RRC Resume message. Referring to step 604A, in response to receiving the RRC Resume message, the UE sends an RRC Resume Complete message (or Msg5) to network B. In some implementations, the RRC Resume Request message in step 602A may include a UE capability restriction indication. In some other implementations, the RRC Resume Complete message in step 604A may include a UE capability restriction indication.

[0076] In some implementations, Asn.1 coding may be used for the UE capability restriction indication. As a non-limiting example, the Asn.1 coding may be the following for the UE capability restriction indication in the RRC Setup Complete message: CapRestrictIndication ENUMERATED {true} Optional Here, CapRestrictIndication can be used to indicate that there is a temporary capability restriction on the UE side.

[0077] Various embodiments address at least the issue of how a network node acts upon receiving a temporary capability restriction: Upon receiving an early indication that there is a temporary capability restriction, the network may request the UE to report its temporary capabilities.

[0078] In some implementations, the network may request the UE to report the temporary capability restriction in an RRC message or MAC CE. For example, the RRC message may be a reconfiguration message.

[0079] In some implementations, when the UE receives the request, the UE may report the temporary capability restriction in UE assistance information (UAI).

[0080] In some implementations, when the network experiences a temporary capacity limitation, the network may reconfigure the UE.

[0081] In some implementations, referring to step 700 of FIG. 7 , a UE may be in a connected state with network A, and the UE may be in an idle state with network B. Referring to step 701, the UE may need to establish a connection with network B when the UE was in an idle state with network B. Referring to step 702, the UE may send an RRC setup request message to network B. Referring to step 703, in response to receiving the RRC setup request message, network B may send an RRC setup message. Referring to step 704, in response to receiving the RRC setup message, the UE sends an RRC setup complete message to network B, the RRC setup complete message including a temporary capability restriction indication. Referring to step 705, in response to receiving a temporary capability restriction indication from the UE, network B may send an RRC message (or a MAC CE) including a reconfiguration (e.g., other configuration) to request temporary capability restriction. Referring to step 706, in response to receiving a request for temporary capability restriction from network B, the UE may send UE assistance information including the temporary capability restriction to network B. Referring to step 707, in response to receiving the temporary capacity restriction from the UE, Network B may reconfigure the UE by sending a reconfiguration message to the UE.

[0082] In some implementations, Asn.1 coding may be used for a request for a capacity restriction (or restrictions). As a non-limiting example, the Asn.1 coding may be the following for a request for a capacity restriction included in a reconfiguration (Reconfiguration->OtherConfig): CapRestrictRequestIndication ENUMERATED {true} Optional Here, CapRestrictRequestIndication may be used to request the UE to report a temporary capability restriction.

[0083] Various embodiments address at least the problem when a UE sends an early indication (i.e., a trigger condition for the UE). The UE needs to know whether network B supports an early indication that there is a temporary capacity limitation. The network may indicate that it supports temporary capacity limitation reporting in the system information.

[0084] In some implementations, an indication may be included in SIB1, the indication used to indicate whether the UE is permitted to send an early indication indicating that there is a temporary capability limitation and / or whether it supports temporary capability limitation reporting.

[0085] 8 , in some implementations, network B may broadcast system information indicating that network B supports temporary capacity restriction indication in step 800. Steps 600, 601, 602, 603, and 604 (or 602A, 603A, and 604A) may be the same as those already described in other embodiments. Step 800 may be performed in other orders relative to other steps; for example, step 800 may be performed before step 600; in another example, step 800 may be performed after step 600; in another example, step 800 may be performed before step 601; and / or in another example, step 800 may be performed after step 601.

[0086] In some implementations, Asn.1 coding may be used to indicate whether the network supports temporary capacity limitation reporting. As a non-limiting example, Asn.1 coding may be the following to indicate whether the network supports temporary capacity limitation reporting in SIB1: CapRestrictSupportIndication ENUMERATED {true} Optional Here, CapRestrictSupportIndication may indicate whether the UE is allowed to send an "early indication that there is a temporary capability restriction" or indicate whether the network support supports temporary capability restriction reporting.

[0087] Various embodiments describe some enhancements for a UE in an inactive state with limited capabilities. When the UE is in an inactive state, the UE may send an RRC resume request to network B. However, due to temporary capability limitations, the connection may not be successfully resumed, for example, if the network is unaware of the temporary capability limitations. For this reason, if an early indication is required, the UE must send an early indication in the resume request message. However, due to the size limitations of the resume request message, it may not be desirable to use the remaining one reserved bit for the MUSIM feature. Therefore, as an enhanced mechanism / solution, the UE may directly enter the idle state.

[0088] In some implementations, for cases where the UE may not be able to resume the connection, the UE may immediately enter the idle state; and / or, when necessary, the UE may send an RRC setup procedure after entering the idle state.

[0089] In some implementations, referring to step 900 of FIG. 9 , the UE may be in a connected state with network A, and the UE may be in an inactive state with network B. Referring to step 901, the UE may need to connect to network B. Referring to step 902, the UE may determine that the UE may not be able to resume connection with network B due to temporary capability (restrictions), so the UE may determine that it needs to return to an idle state. Referring to step 903, the UE returns to the idle state. Referring to step 904, the UE may send an RRC setup request message to network B. Referring to step 905, in response to receiving the RRC setup request message, network B may send an RRC setup message. Referring to step 906, in response to receiving the RRC setup message, the UE sends an RRC setup complete message to network B. In some implementations, the RRC setup request message may include a temporary capability restriction (or indication). In some implementations, the RRC setup complete message may include a temporary capability restriction (or indication).

[0090] Referring to FIG. 9, step 902 may be optional and may not be necessary in some implementations, and the UE returns to the idle state without determining whether the UE needs to return to the idle state and / or whether the UE may not be able to resume connection with network B due to temporary capabilities (limitations).

[0091] The present disclosure describes a method, apparatus, and computer-readable medium for wireless communications. The present disclosure addresses issues associated with adjusting user equipment (UE) capabilities for dual-active states. The method, device, and computer-readable medium described in the present disclosure may facilitate performance of wireless transmissions between user equipment and multiple network nodes, thereby improving efficiency and overall performance. The method, device, and computer-readable medium described in the present disclosure may improve the overall efficiency of a wireless communications system.

[0092] References to features, advantages, or similar language throughout this specification do not imply that all of the features and advantages that may be realized by the solution should or are included in any single implementation thereof. Rather, language referring to features and advantages is understood to mean that the particular feature, advantage, or characteristic described in connection with an embodiment is included in at least one embodiment of the solution. Thus, descriptions of features and advantages and similar language throughout this specification may, but do not necessarily, refer to the same embodiment.

[0093] Furthermore, the described features, advantages, and characteristics of the solution may be combined in any suitable manner in one or more embodiments. As will be appreciated by those skilled in the art in light of the description herein, the solution may be practiced without one or more of the specific features or advantages of a particular embodiment. In other instances, additional features and advantages may be recognized in particular embodiments that may not be present in all embodiments of the solution.

Claims

1. 1. A method for wireless communication, the method comprising:

1. A method comprising: transmitting, by a user equipment (UE), a first message to a network, the first message including a first indicator, the first indicator indicating a UE capability limitation to the network.

2. The method of claim 1 , wherein the UE is equipped with a Multi-Universal Subscriber Identity Module (Multi-USIM) corresponding to a first subscription and a second subscription.

3. The method of claim 1 , wherein the first message comprises one of Message 1 (Msg1), Message A (MsgA), Message 3 (Msg3), or Message 5 (Msg5).

4. before the UE sends the first message to the network; the UE is in an idle state with the network; and The method of claim 1 , wherein the UE is configured to establish a connection with the network.

5. The method of claim 4 , wherein the first message comprises one of a Radio Resource Control (RRC) Setup Request message or an RRC Setup Complete message.

6. before the UE sends the first message to the network; the UE is in an inactive state with the network; and The method of claim 1 , wherein the UE is configured to resume connectivity with the network.

7. 7. The method of claim 6, wherein the first message comprises one of a Radio Resource Control (RRC) Resume Request message or an RRC Resume Complete message.

8. The method of claim 1 , wherein the first indicator comprises a field indicating a capability limitation of the UE to the network.

9. 9. The method of claim 1, wherein in response to transmitting the first message including the first indicator, the UE receives a second message from the network including a second indicator, the second indicator indicating a request for the UE to report the UE capability limitation.

10. the second message comprises one of an RRC message or a Medium Access Control Control Element (MAC CE); and The method of claim 9 , wherein the RRC message comprises a reconfiguration message.

11. 10. The method of claim 9, wherein in response to receiving the second message, the UE transmits a third message to the network that includes the UE capability restriction information.

12. 12. The method of claim 11, wherein in response to transmitting the third message including the UE capability restriction information, the UE receives a fourth message from the network to reconfigure the UE.

13. 13. The method of claim 9, wherein the second indicator includes a field for requesting the UE to report a capacity limitation to a network.

14. before the UE sends the first message to the network; The method of claim 1 , wherein the UE receives system information broadcast by the network, the system information including a third indicator indicating that the network supports a capacity restriction indication.

15. The method of claim 14 , wherein the system information includes System Information Block 1 (SIB1).

16. The third indicator is whether the UE is permitted to send a capability restriction indication; or Whether the network supports capacity restriction reporting The method of claim 14 , further comprising a field for indicating at least one of:

17. 1. A method for wireless communication, the method comprising:

1. A method comprising: receiving, by a network, a first message from a user equipment (UE) including a first indicator, the first indicator indicating a UE capability limitation to the network.

18. 18. The method of claim 17, wherein the first message comprises one of a Radio Resource Control (RRC) Resume Request message, an RRC Resume Complete message, an RRC Setup Request message, or an RRC Setup Complete message.

19. 18. The method of claim 17, wherein in response to receiving the first message including the indicator, the network sends a second message to the UE including a second indicator, the second indicator indicating a request for the UE to report the UE capability limitation.

20. 20. The method of claim 19, wherein in response to sending the second message, the network receives a third message from the UE that includes the UE capability restriction information.

21. 21. The method of claim 20, wherein in response to receiving the third message including the UE capability restriction information, the network sends a fourth message to reconfigure the UE.

22. the network receives the first message from the UE; 22. The method of claim 17, wherein the network broadcasts system information to the UE, the system information including a third indicator that indicates that the network supports a capacity restriction indication.

23. 23. A wireless communication device comprising a processor and a memory, the processor configured to read code from the memory and to perform a method according to any one of claims 1 to 22.

24. 23. A computer program product comprising computer readable program medium code stored thereon, the computer readable program medium code, when executed by a processor, causing the processor to perform a method according to any one of claims 1 to 22.

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