WO2022073169A1 - Techniques pour une acquisition de cellule de nouvelle radio optimisée dans un mode à multi-module d'identité d'abonné - Google Patents

Techniques pour une acquisition de cellule de nouvelle radio optimisée dans un mode à multi-module d'identité d'abonné Download PDF

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Publication number
WO2022073169A1
WO2022073169A1 PCT/CN2020/119877 CN2020119877W WO2022073169A1 WO 2022073169 A1 WO2022073169 A1 WO 2022073169A1 CN 2020119877 W CN2020119877 W CN 2020119877W WO 2022073169 A1 WO2022073169 A1 WO 2022073169A1
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Prior art keywords
sim
activity
cell acquisition
cell
traffic
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PCT/CN2020/119877
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English (en)
Inventor
Ling Xie
Sharda RANJAN
Tom Chin
Naga Chandan Babu Gudivada
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Qualcomm Incorporated
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Priority to PCT/CN2020/119877 priority Critical patent/WO2022073169A1/fr
Publication of WO2022073169A1 publication Critical patent/WO2022073169A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/183—Processing at user equipment or user record carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/04—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration using triggered events

Definitions

  • aspects of the present disclosure generally relate to wireless communication and to techniques and apparatuses for optimized New Radio (NR) cell acquisition in a multi-subscriber identity module (multi-SIM) mode.
  • NR New Radio
  • multi-SIM multi-subscriber identity module
  • Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts.
  • Typical wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, and/or the like) .
  • 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) .
  • UMTS Universal Mobile Telecommunications System
  • a wireless network may include a number of base stations (BSs) that can support communication for a number of user equipment (UEs) .
  • a user equipment (UE) may communicate with a base station (BS) via the downlink and uplink.
  • the downlink (or forward link) refers to the communication link from the BS to the UE
  • the uplink (or reverse link) refers to the communication link from the UE to the BS.
  • a BS may be referred to as a Node B, a gNB, an access point (AP) , a radio head, a transmit receive point (TRP) , a New Radio (NR) BS, a 5G Node B, and/or the like.
  • New Radio which may also be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by the Third Generation Partnership Project (3GPP) .
  • 3GPP Third Generation Partnership Project
  • NR is designed to better support mobile broadband Internet access by improving spectral efficiency, lowering costs, improving services, making use of new spectrum, and better integrating with other open standards using orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink (DL) , using 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.
  • OFDM orthogonal frequency division multiplexing
  • SC-FDM e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)
  • DFT-s-OFDM discrete Fourier transform spread OFDM
  • MIMO multiple-input multiple-output
  • a method of wireless communication performed by a user equipment includes initiating a New Radio (NR) cell acquisition associated with a first subscriber identity module (SIM) of the UE; determining that the NR cell acquisition overlaps with activity associated with a second SIM of the UE; determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM; and prioritizing, based at least in part on a determination that the NR cell acquisition associated with the first SIM is prioritized, the NR cell acquisition associated with the first SIM over the activity associated with the second SIM.
  • NR New Radio
  • SIM subscriber identity module
  • the NR cell acquisition includes at least one of: an NR random access channel (RACH) procedure, an NR secondary cell group (SCG) addition in a Non-Standalone (NSA) mode, or an NR cell establishment or re-establishment.
  • RACH NR random access channel
  • SCG NR secondary cell group
  • NSA Non-Standalone
  • determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM includes determining whether the activity associated with the second SIM includes critical activity; and determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM based at least in part on the determination of whether the activity associated with the second SIM includes critical activity.
  • determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM includes determining that the activity associated with the second SIM includes paging activity; and wherein prioritizing the NR cell acquisition associated with the first SIM includes skipping the paging activity associated with the second SIM based at least in part on the determination that the activity associated with the second SIM includes paging activity.
  • determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM includes determining that the activity associated with the second SIM includes mobile originated (MO) activity; and wherein prioritizing the NR cell acquisition associated with the first SIM includes delaying, for an amount of time, the MO activity associated with the second SIM based at least in part on the determination that the activity associated with the second SIM includes MO activity.
  • MO mobile originated
  • the amount of time associated with delaying the MO activity is based at least in part on an amount of time required to complete the NR cell acquisition.
  • determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM includes determining that the activity associated with the second SIM includes mobile termination (MT) activity; monitoring, for an amount of time, upcoming traffic associated with the second SIM; and determining whether the upcoming traffic associated with the second SIM includes critical traffic.
  • MT mobile termination
  • prioritizing the NR cell acquisition associated with the first SIM includes determining that the upcoming traffic associated with the second SIM does not include critical traffic; and skipping the upcoming traffic associated with the second SIM based at least in part on the determination that the upcoming traffic associated with the second SIM does not include critical traffic.
  • the method includes determining that the NR cell acquisition is unsuccessful; and performing a connection release associated with the first SIM based at least in part on the determination that the NR cell acquisition is unsuccessful.
  • the method includes performing a tracking area update (TAU) associated with the first SIM based at least in part on performing the connection release associated with the first SIM; and initiating another NR cell acquisition associated with first SIM based at least in part on performing the TAU.
  • TAU tracking area update
  • determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM includes determining a current throughput level associated with the first SIM; determining that the current throughput level associated with the first SIM does not satisfy a throughput requirement associated with the UE; and determining that the NR cell acquisition associated with the first SIM is prioritized based at least in part on the determination that the current throughput level associated with the first SIM does not satisfy the throughput requirement associated with the UE.
  • determining whether to prioritize the NR cell acquisition associated with the first SIM the activity associated with the second SIM includes measuring a signal of an NR cell associated with the NR cell acquisition; determining whether a measurement value of the signal of the NR cell associated with the NR cell acquisition satisfies a threshold; and determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM based at least in part on the determination of whether the measurement value of the signal of the NR cell associated with the NR cell acquisition satisfies a threshold.
  • the measurement value of the signal of the NR cell is at least one of: a reference signal received power value, a reference signal received quality value, or a signal to noise ratio value.
  • the threshold is at least one of: a reference signal received power threshold, a reference signal received quality threshold, or a signal to noise ratio threshold.
  • prioritizing the NR cell acquisition associated with the first SIM includes establishing a packet data network (PDN) session associated with the second SIM for packet switched (PS) traffic; determining that upcoming traffic associated with the PDN session does not include PS traffic; and performing a disconnection of the PDN session based at least in part on the determination that upcoming traffic associated with the PDN session does not include PS traffic.
  • PDN packet data network
  • PS packet switched
  • establishing the PDN session associated with the second SIM includes releasing a PDN session associated with the first SIM based at least in part on a reception of a high-level operating system (HLOS) command indicating to stop PDN traffic; and establishing the PDN session associated with the second SIM based at least in part on a reception of an HLOS command indicating to start PDN traffic.
  • HLOS high-level operating system
  • establishing the PDN session associated with the second SIM includes establishing the PDN session associated with the second SIM based at least in part on a reception of a high-level operating system (HLOS) command indicating to start PDN traffic; and releasing the PDN session associated with the second SIM based at least in part on a reception of an HLOS command indicating to stop PDN traffic.
  • HLOS high-level operating system
  • a UE for wireless communication includes a memory and one or more processors coupled to the memory.
  • the memory and the one or more processors may be configured to initiate an NR cell acquisition associated with a first SIM of the UE; determine that the NR cell acquisition overlaps with activity associated with a second SIM of the UE; determine whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM; and prioritize, based at least in part on a determination that the NR cell acquisition associated with the first SIM is prioritized, the NR cell acquisition associated with the first SIM over the activity associated with the second SIM.
  • the NR cell acquisition includes at least one of: an NR RACH procedure, an NR SCG addition in an NSA mode, or an NR cell establishment or re-establishment.
  • the one or more processors when determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM, are configured to determine whether the activity associated with the second SIM includes critical activity; and determine whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM based at least in part on the determination of whether the activity associated with the second SIM includes critical activity.
  • the one or more processors when determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM, are configured to determine that the activity associated with the second SIM includes paging activity; and wherein the one or more processors, when prioritizing the NR cell acquisition associated with the first SIM, are configured to skip the paging activity associated with the second SIM based at least in part on the determination that the activity associated with the second SIM includes paging activity.
  • the one or more processors when determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM, are configured to determine that the activity associated with the second SIM includes MO activity; and wherein the one or more processors, when prioritizing the NR cell acquisition associated with the first SIM, are configured to delay, for an amount of time, the MO activity associated with the second SIM based at least in part on the determination that the activity associated with the second SIM includes MO activity.
  • the amount of time associated with delaying the MO activity is based at least in part on an amount of time required to complete the NR cell acquisition.
  • the one or more processors when determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM, are configured to determine that the activity associated with the second SIM includes MT activity; monitor, for an amount of time, upcoming traffic associated with the second SIM; and determine whether the upcoming traffic associated with the second SIM includes critical traffic.
  • the one or more processors when prioritizing the NR cell acquisition associated with the first SIM, are configured to determine that the upcoming traffic associated with the second SIM does not include critical traffic; and skip the upcoming traffic associated with the second SIM based at least in part on the determination that the upcoming traffic associated with the second SIM does not include critical traffic.
  • the one or more processors are further configured to determine that the NR cell acquisition is unsuccessful; and perform a connection release associated with the first SIM based at least in part on the determination that the NR cell acquisition is unsuccessful.
  • the one or more processors are further configured to perform a TAU associated with the first SIM based at least in part on performing the connection release associated with the first SIM; and initiate another NR cell acquisition associated with first SIM based at least in part on performing the TAU.
  • the one or more processors when determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM, are configured to determine a current throughput level associated with the first SIM; determine that the current throughput level associated with the first SIM does not satisfy a throughput requirement associated with the UE; and determine that the NR cell acquisition associated with the first SIM is prioritized based at least in part on the determination that the current throughput level associated with the first SIM does not satisfy the throughput requirement associated with the UE.
  • the one or more processors when determining whether to prioritize the NR cell acquisition associated with the first SIM the activity associated with the second SIM, are configured to measure a signal of an NR cell associated with the NR cell acquisition; determine whether a measurement value of the signal of the NR cell associated with the NR cell acquisition satisfies a threshold; and determine whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM based at least in part on the determination of whether the measurement value of the signal of the NR cell associated with the NR cell acquisition satisfies a threshold.
  • the measurement value of the signal of the NR cell is at least one of: a reference signal received power value, a reference signal received quality value, or a signal to noise ratio value.
  • the threshold is at least one of: a reference signal received power threshold, a reference signal received quality threshold, or a signal to noise ratio threshold.
  • the one or more processors when prioritizing the NR cell acquisition associated with the first SIM, are configured to establish a PDN session associated with the second SIM for PS traffic; determine that upcoming traffic associated with the PDN session does not include PS traffic; and perform a disconnection of the PDN session based at least in part on the determination that upcoming traffic associated with the PDN session does not include PS traffic.
  • the one or more processors when establishing the PDN session associated with the second SIM, are configured to release a PDN session associated with the first SIM based at least in part on a reception of an HLOS command indicating to stop PDN traffic; and establish the PDN session associated with the second SIM based at least in part on a reception of an HLOS command indicating to start PDN traffic.
  • the one or more processors when establishing the PDN session associated with the second SIM, are configured to establish the PDN session associated with the second SIM based at least in part on a reception of an HLOS command indicating to start PDN traffic; and release the PDN session associated with the second SIM based at least in part on a reception of an HLOS command indicating to stop PDN traffic.
  • a non-transitory computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a UE, cause the UE to: initiate an NR cell acquisition associated with a first SIM of the UE; determine that the NR cell acquisition overlaps with activity associated with a second SIM of the UE; determine whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM; and prioritize, based at least in part on a determination that the NR cell acquisition associated with the first SIM is prioritized, the NR cell acquisition associated with the first SIM over the activity associated with the second SIM.
  • the NR cell acquisition includes at least one of: an NR RACH procedure, an NR SCG addition in an NSA mode, or an NR cell establishment or re-establishment.
  • the one or more instructions, that cause the UE to determine whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM cause the UE to determine whether the activity associated with the second SIM includes critical activity; and determine whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM based at least in part on the determination of whether the activity associated with the second SIM includes critical activity.
  • the one or more instructions, that cause the UE to determine whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM cause the UE to determine that the activity associated with the second SIM includes paging activity; and wherein the one or more instructions, that cause the UE to prioritize the NR cell acquisition associated with the first SIM, cause the UE to skip the paging activity associated with the second SIM based at least in part on the determination that the activity associated with the second SIM includes paging activity.
  • the one or more instructions, that cause the UE to determine whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM cause the UE to determine that the activity associated with the second SIM includes MO activity; and wherein the one or more instructions, that cause the UE to prioritize the NR cell acquisition associated with the first SIM, cause the UE to delay, for an amount of time, the MO activity associated with the second SIM based at least in part on the determination that the activity associated with the second SIM includes MO activity.
  • the amount of time associated with delaying the MO activity is based at least in part on an amount of time required to complete the NR cell acquisition.
  • the one or more instructions, that cause the UE to determine whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM cause the UE to determine that the activity associated with the second SIM includes MT activity; monitor, for an amount of time, upcoming traffic associated with the second SIM; and determine whether the upcoming traffic associated with the second SIM includes critical traffic.
  • the one or more instructions, that cause the UE to prioritize the NR cell acquisition associated with the first SIM cause the UE to determine that the upcoming traffic associated with the second SIM does not include critical traffic; and skip the upcoming traffic associated with the second SIM based at least in part on the determination that the upcoming traffic associated with the second SIM does not include critical traffic.
  • the one or more instructions further cause the UE to determine that the NR cell acquisition is unsuccessful; and perform a connection release associated with the first SIM based at least in part on the determination that the NR cell acquisition is unsuccessful.
  • the one or more instructions further cause the UE to perform a TAU associated with the first SIM based at least in part on performing the connection release associated with the first SIM; and initiate another NR cell acquisition associated with first SIM based at least in part on performing the TAU.
  • the one or more instructions, that cause the UE to determine whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM cause the UE to determine a current throughput level associated with the first SIM; determine that the current throughput level associated with the first SIM does not satisfy a throughput requirement associated with the UE; and determine that the NR cell acquisition associated with the first SIM is prioritized based at least in part on the determination that the current throughput level associated with the first SIM does not satisfy the throughput requirement associated with the UE.
  • the one or more instructions, that cause the UE to determine whether to prioritize the NR cell acquisition associated with the first SIM the activity associated with the second SIM cause the UE to measure a signal of an NR cell associated with the NR cell acquisition; determine whether a measurement value of the signal of the NR cell associated with the NR cell acquisition satisfies a threshold; and determine whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM based at least in part on the determination of whether the measurement value of the signal of the NR cell associated with the NR cell acquisition satisfies a threshold.
  • the measurement value of the signal of the NR cell is at least one of: a reference signal received power value, a reference signal received quality value, or a signal to noise ratio value.
  • the threshold is at least one of: a reference signal received power threshold, a reference signal received quality threshold, or a signal to noise ratio threshold.
  • the one or more instructions, that cause the UE to prioritize the NR cell acquisition associated with the first SIM cause the UE to establish a PDN session associated with the second SIM for PS traffic; determine that upcoming traffic associated with the PDN session does not include PS traffic; and perform a disconnection of the PDN session based at least in part on the determination that upcoming traffic associated with the PDN session does not include PS traffic.
  • the one or more instructions, that cause the UE to establish the PDN session associated with the second SIM cause the UE to release a PDN session associated with the first SIM based at least in part on a reception of an HLOS command indicating to stop PDN traffic; and establish the PDN session associated with the second SIM based at least in part on a reception of an HLOS command indicating to start PDN traffic.
  • the one or more instructions, that cause the UE to establish the PDN session associated with the second SIM cause the UE to establish the PDN session associated with the second SIM based at least in part on a reception of an HLOS command indicating to start PDN traffic; and release the PDN session associated with the second SIM based at least in part on a reception of an HLOS command indicating to stop PDN traffic.
  • an apparatus for wireless communication includes means for initiating an NR cell acquisition associated with a first SIM of apparatus; means for determining that the NR cell acquisition overlaps with activity associated with a second SIM of apparatus; means for determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM; and means for prioritizing, based at least in part on a determination that the NR cell acquisition associated with the first SIM is prioritized, the NR cell acquisition associated with the first SIM over the activity associated with the second SIM.
  • the NR cell acquisition includes at least one of: an NR RACH procedure, an NR SCG addition in an NSA mode, or an NR cell establishment or re-establishment.
  • the means for determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM includes means for determining whether the activity associated with the second SIM includes critical activity; and means for determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM based at least in part on the determination of whether the activity associated with the second SIM includes critical activity.
  • the means for determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM includes means for determining that the activity associated with the second SIM includes paging activity; and wherein the means for prioritizing the NR cell acquisition associated with the first SIM includes means for skipping the paging activity associated with the second SIM based at least in part on the determination that the activity associated with the second SIM includes paging activity.
  • the means for determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM includes means for determining that the activity associated with the second SIM includes MO activity; and wherein the means for prioritizing the NR cell acquisition associated with the first SIM includes means for delaying, for an amount of time, the MO activity associated with the second SIM based at least in part on the determination that the activity associated with the second SIM includes MO activity.
  • the amount of time associated with delaying the MO activity is based at least in part on an amount of time required to complete the NR cell acquisition.
  • the means for determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM includes means for determining that the activity associated with the second SIM includes MT activity; means for monitoring, for an amount of time, upcoming traffic associated with the second SIM; and means for determining whether the upcoming traffic associated with the second SIM includes critical traffic.
  • the means for prioritizing the NR cell acquisition associated with the first SIM includes means for determining that the upcoming traffic associated with the second SIM does not include critical traffic; and means for skipping the upcoming traffic associated with the second SIM based at least in part on the determination that the upcoming traffic associated with the second SIM does not include critical traffic.
  • the apparatus includes means for determining that the NR cell acquisition is unsuccessful; and means for performing a connection release associated with the first SIM based at least in part on the determination that the NR cell acquisition is unsuccessful.
  • the apparatus includes means for performing a TAU associated with the first SIM based at least in part on performing the connection release associated with the first SIM; and means for initiating another NR cell acquisition associated with first SIM based at least in part on performing the TAU.
  • the means for determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM includes means for determining a current throughput level associated with the first SIM; means for determining that the current throughput level associated with the first SIM does not satisfy a throughput requirement associated with apparatus; and means for determining that the NR cell acquisition associated with the first SIM is prioritized based at least in part on the determination that the current throughput level associated with the first SIM does not satisfy the throughput requirement associated with apparatus.
  • the means for determining whether to prioritize the NR cell acquisition associated with the first SIM the activity associated with the second SIM includes means for measuring a signal of an NR cell associated with the NR cell acquisition; means for determining whether a measurement value of the signal of the NR cell associated with the NR cell acquisition satisfies a threshold; and means for determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM based at least in part on the determination of whether the measurement value of the signal of the NR cell associated with the NR cell acquisition satisfies a threshold.
  • the measurement value of the signal of the NR cell is at least one of: a reference signal received power value, a reference signal received quality value, or a signal to noise ratio value.
  • the threshold is at least one of: a reference signal received power threshold, a reference signal received quality threshold, or a signal to noise ratio threshold.
  • the means for prioritizing the NR cell acquisition associated with the first SIM comprises includes means for establishing a PDN session associated with the second SIM for PS traffic; means for determining that upcoming traffic associated with the PDN session does not include PS traffic; and means for performing a disconnection of the PDN session based at least in part on the determination that upcoming traffic associated with the PDN session does not include PS traffic.
  • the means for establishing the PDN session associated with the second SIM includes means for releasing a PDN session associated with the first SIM based at least in part on a reception of an HLOS command indicating to stop PDN traffic; and means for establishing the PDN session associated with the second SIM based at least in part on a reception of an HLOS command indicating to start PDN traffic.
  • the means for establishing the PDN session associated with the second SIM includes means for establishing the PDN session associated with the second SIM based at least in part on a reception of an HLOS command indicating to start PDN traffic; and means for releasing the PDN session associated with the second SIM based at least in part on a reception of an HLOS command indicating to stop PDN traffic.
  • aspects generally include a method, apparatus, system, computer program product, non-transitory computer-readable medium, user equipment, base station, wireless communication device, and/or processing system as substantially described herein with reference to and as illustrated by the drawings and specification.
  • Fig. 1 is a diagram illustrating an example of a wireless network, in accordance with various aspects of the present disclosure.
  • Fig. 2 is a diagram illustrating an example of a base station in communication with a UE in a wireless network, in accordance with various aspects of the present disclosure.
  • Fig. 3 is a diagram illustrating an example of a multi-subscriber identity module (multi-SIM) UE, in accordance with various aspects of the present disclosure.
  • multi-SIM multi-subscriber identity module
  • Fig. 4 is a diagram illustrating an example associated with optimized New Radio (NR) cell acquisition in a multi-SIM mode, in accordance with various aspects of the present disclosure.
  • NR New Radio
  • Fig. 5 is a diagram illustrating an example process associated with optimized NR cell acquisition in a multi-SIM mode, in accordance with various aspects of the present disclosure.
  • Figs. 6 and 7 are block diagrams of example apparatuses for wireless communication, in accordance with various aspects of the present disclosure.
  • aspects may be described herein using terminology commonly associated with a 5G or NR radio access technology (RAT) , aspects of the present disclosure can be applied to other RATs, such as a 3G RAT, a 4G RAT, and/or a RAT subsequent to 5G (e.g., 6G) .
  • RAT radio access technology
  • Fig. 1 is a diagram illustrating an example of a wireless network 100, in accordance with various aspects of the present disclosure.
  • the wireless network 100 may be or may include elements of a 5G (NR) network, an LTE network, and/or the like.
  • the wireless network 100 may include a number of 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 user equipment (UEs) and may also be referred to as an NR BS, a Node B, a gNB, a 5G node B (NB) , an access point, a transmit receive point (TRP) , and/or the like.
  • Each BS may provide communication coverage for a particular geographic area.
  • the term “cell” can refer to a coverage area of a BS and/or a BS subsystem serving this coverage area, depending on the context in which the term is used.
  • a BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and/or another type of cell.
  • a macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscription.
  • a pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscription.
  • a femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs having association 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.
  • a BS 110a may be a macro BS for a macro cell 102a
  • a BS 110b may be a pico BS for a pico cell 102b
  • a BS 110c may be a femto BS for a femto cell 102c.
  • a BS may support one or multiple (e.g., three) cells.
  • eNB base station
  • NR BS NR BS
  • gNB gNode B
  • AP AP
  • node B node B
  • 5G NB 5G NB
  • cell may be used interchangeably herein.
  • a cell may not necessarily be stationary, and the geographic area of the cell may move according to the location of a mobile BS.
  • the BSs may be interconnected to one another and/or to one or more other BSs or network nodes (not shown) in the wireless network 100 through various types of backhaul interfaces such as a direct physical connection, a virtual network, and/or the like using any suitable transport network.
  • Wireless network 100 may also include relay stations.
  • a relay station is an entity that can receive a transmission of data from an upstream station (e.g., a BS or a UE) and send a transmission of the data 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.
  • a relay BS 110d may communicate with macro BS 110a and a UE 120d in order to facilitate communication between BS 110a and UE 120d.
  • a relay BS may also be referred to as a relay station, a relay base station, a relay, and/or the like.
  • Wireless network 100 may be a heterogeneous network that includes BSs of different types, e.g., macro BSs, pico BSs, femto BSs, relay BSs, and/or the like. These different types of BSs may have different transmit power levels, different coverage areas, and different impacts on interference in wireless network 100.
  • macro BSs may have a high transmit power level (e.g., 5 to 40 watts) whereas pico BSs, femto BSs, and relay BSs may have lower transmit power levels (e.g., 0.1 to 2 watts) .
  • a network controller 130 may couple to a set of BSs and may provide coordination and control for these BSs.
  • Network controller 130 may communicate with the BSs via a backhaul.
  • the BSs may also communicate with one another, e.g., directly or indirectly via a wireless or wireline backhaul.
  • UEs 120 may be dispersed throughout wireless network 100, and each UE may be stationary or mobile.
  • a UE may also be referred to as an access terminal, a terminal, a mobile station, a subscriber unit, a station, and/or the like.
  • a UE may be a cellular phone (e.g., a smart phone) , a personal digital assistant (PDA) , a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, biometric sensors/devices, wearable devices (smart watches, smart clothing, smart glasses, smart wrist bands, smart jewelry (e.g., smart ring, smart bracelet) ) , an entertainment device (e.g., a music or video device, or a satellite radio) , a vehicular component or sensor, smart meters/sensors, industrial manufacturing equipment, a global positioning system device, or any other suitable device that is configured to communicate via a wireless or wired medium.
  • PDA personal digital assistant
  • WLL wireless local loop
  • 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, and/or the like, that may communicate with a base station, another device (e.g., remote device) , or some other entity.
  • a wireless node may provide, for example, connectivity for or to a network (e.g., a wide area network such as 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.
  • IoT Internet-of-Things
  • NB-IoT narrowband internet of things
  • UE 120 may be included inside a housing that houses components of UE 120, such as processor components, memory components, and/or the like.
  • the processor components and the memory components may be coupled together.
  • the processor components e.g., one or more processors
  • the memory components e.g., a memory
  • the processor components and the memory components may be operatively coupled, communicatively coupled, electronically coupled, electrically coupled, and/or the like.
  • any number of wireless networks may be deployed in a given geographic area.
  • Each wireless network may support a particular RAT and may operate on one or more frequencies.
  • a RAT may also be referred to as a radio technology, an air interface, and/or the like.
  • a frequency may also be referred to as a carrier, a frequency channel, and/or the like.
  • Each frequency may support a single RAT in a given geographic area in order to avoid interference between wireless networks of different RATs.
  • NR or 5G RAT networks may be deployed.
  • two or more UEs 120 may communicate directly using one or more sidelink channels (e.g., without using a base station 110 as an intermediary to communicate with one another) .
  • the UEs 120 may communicate using peer-to-peer (P2P) communications, device-to-device (D2D) communications, a vehicle-to-everything (V2X) protocol (e.g., which may include a vehicle-to-vehicle (V2V) protocol, a vehicle-to-infrastructure (V2I) protocol, and/or the like) , a mesh network, and/or the like.
  • V2X vehicle-to-everything
  • the UE 120 may perform scheduling operations, resource selection operations, and/or other operations described elsewhere herein as being performed by the base station 110.
  • Devices of wireless network 100 may communicate using the electromagnetic spectrum, which may be subdivided based on frequency or wavelength into various classes, bands, channels, and/or the like.
  • devices of wireless network 100 may communicate using an operating band having a first frequency range (FR1) , which may span from 410 MHz to 7.125 GHz, and/or may communicate using an operating band having a second frequency range (FR2) , which may span from 24.25 GHz to 52.6 GHz.
  • FR1 first frequency range
  • FR2 second frequency range
  • the frequencies between FR1 and FR2 are sometimes referred to as mid-band frequencies.
  • FR1 is often referred to as a “sub-6 GHz” band.
  • FR2 is often referred to as a “millimeter wave” band despite being different from the extremely high frequency (EHF) band (30 GHz –300 GHz) which is identified by the International Telecommunications Union (ITU) as a “millimeter wave” band.
  • EHF extremely high frequency
  • ITU International Telecommunications Union
  • sub-6 GHz or the like, if used herein, may broadly represent frequencies less than 6 GHz, frequencies within FR1, and/or mid-band frequencies (e.g., greater than 7.125 GHz) .
  • millimeter wave may broadly represent frequencies within the EHF band, frequencies within FR2, and/or mid-band frequencies (e.g., less than 24.25 GHz) . It is contemplated that the frequencies included in FR1 and FR2 may be modified, and techniques described herein are applicable to those modified frequency ranges.
  • Fig. 1 is provided as an example. Other examples may differ from what is described with regard to Fig. 1.
  • Fig. 2 is a diagram illustrating an example 200 of a base station 110 in communication with a UE 120 in a wireless network 100, in accordance with various aspects of the present disclosure.
  • Base station 110 may be equipped with T antennas 234a through 234t
  • UE 120 may be equipped with R antennas 252a through 252r, where in general T ⁇ 1 and R ⁇ 1.
  • a transmit processor 220 may receive data from a data source 212 for one or more UEs, select one or more modulation and coding schemes (MCS) for each UE based at least in part on channel quality indicators (CQIs) 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/or the like) and control information (e.g., CQI requests, grants, upper layer signaling, and/or the like) and provide overhead symbols and control symbols.
  • MCS modulation and coding schemes
  • Transmit processor 220 may also generate reference symbols for reference signals (e.g., the cell-specific reference signal (CRS) , a demodulation reference signal (DMRS) , and/or the like) and synchronization signals (e.g., the primary synchronization signal (PSS) and secondary synchronization signal (SSS) ) .
  • a transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on the data symbols, the control symbols, the overhead symbols, and/or the reference symbols, if applicable, and may provide T output symbol streams to T modulators (MODs) 232a through 232t.
  • MIMO multiple-input multiple-output
  • Each modulator 232 may process a respective output symbol stream (e.g., for OFDM and/or the like) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. T downlink signals from modulators 232a through 232t may be transmitted via T antennas 234a through 234t, respectively.
  • antennas 252a through 252r may receive the 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) a received signal to obtain input samples.
  • Each demodulator 254 may further process the input samples (e.g., for OFDM and/or the like) 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.
  • controller/processor may refer to one or more controllers, one or more processors, or a combination thereof.
  • a channel processor may determine reference signal received power (RSRP) , received signal strength indicator (RSSI) , reference signal received quality (RSRQ) , channel quality indicator (CQI) , and/or the like.
  • RSRP reference signal received power
  • RSSI received signal strength indicator
  • RSRQ reference signal received quality
  • CQI channel quality indicator
  • one or more components of UE 120 may be included in a housing 284.
  • Network controller 130 may include communication unit 294, controller/processor 290, and memory 292.
  • Network controller 130 may include, for example, one or more devices in a core network.
  • Network controller 130 may communicate with base station 110 via communication unit 294.
  • a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports that include RSRP, RSSI, RSRQ, CQI, and/or the like) from controller/processor 280. Transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from transmit processor 264 may be precoded by a TX MIMO processor 266 if applicable, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM, CP-OFDM, and/or the like) , and transmitted to base station 110.
  • the UE 120 includes a transceiver.
  • the transceiver may include any combination of antenna (s) 252, modulators and/or demodulators 254, MIMO detector 256, receive processor 258, transmit processor 264, and/or TX MIMO processor 266.
  • the transceiver may be used by a processor (e.g., controller/processor 280) and memory 282 to perform aspects of any of the methods described herein.
  • the uplink signals from UE 120 and other UEs may be received by antennas 234, processed by demodulators 232, detected by a MIMO detector 236 if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by UE 120.
  • Receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to controller/processor 240.
  • Base station 110 may include communication unit 244 and communicate to network controller 130 via communication unit 244.
  • Base station 110 may include a scheduler 246 to schedule UEs 120 for downlink and/or uplink communications.
  • the base station 110 includes a transceiver.
  • the transceiver may include any combination of antenna (s) 234, modulators and/or demodulators 232, MIMO detector 236, receive processor 238, transmit processor 220, and/or TX MIMO processor 230.
  • the transceiver may be used by a processor (e.g., controller/processor 240) and memory 242 to perform aspects of any of the methods described herein.
  • Controller/processor 240 of base station 110, controller/processor 280 of UE 120, and/or any other component (s) of Fig. 2 may perform one or more techniques associated with optimized NR cell acquisition in a multi-subscriber identity module (multi-SIM) mode, as described in more detail elsewhere herein.
  • controller/processor 240 of base station 110, controller/processor 280 of UE 120, and/or any other component (s) of Fig. 2 may perform or direct operations of, for example, process 500 of Fig. 5, and/or other processes as described herein.
  • Memories 242 and 282 may store data and program codes for base station 110 and UE 120, respectively.
  • memory 242 and/or memory 282 may include a non-transitory computer-readable medium storing one or more instructions for wireless communication.
  • the one or more instructions when executed (e.g., directly, or after compiling, converting, interpreting, and/or the like) by one or more processors of the base station 110 and/or the UE 120, may cause the one or more processors, the UE 120, and/or the base station 110 to perform or direct operations of, for example, process 500 of Fig. 5, and/or other processes as described herein.
  • executing instructions may include running the instructions, converting the instructions, compiling the instructions, interpreting the instructions, and/or the like.
  • the UE 120 includes means for initiating an NR cell acquisition associated with a first subscriber identity module (SIM) of the UE; means for determining that the NR cell acquisition overlaps with activity associated with a second SIM of the UE; means for determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM; and/or means for prioritizing, based at least in part on a determination that the NR cell acquisition associated with the first SIM is prioritized, the NR cell acquisition associated with the first SIM over the activity associated with the second SIM.
  • SIM subscriber identity module
  • the means for the UE 120 to perform operations described herein may include, for example, antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, modulator 254, controller/processor 280, and/or memory 282.
  • the UE 120 includes means for determining whether the activity associated with the second SIM includes critical activity; and/or means for determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM based at least in part on the determination of whether the activity associated with the second SIM includes critical activity.
  • the UE 120 includes means for determining that the activity associated with the second SIM includes paging activity; and/or means for skipping the paging activity associated with the second SIM based at least in part on the determination that the activity associated with the second SIM includes paging activity.
  • the UE 120 includes means for determining that the activity associated with the second SIM includes mobile originated (MO) activity; and/or means for delaying, for an amount of time, the MO activity associated with the second SIM based at least in part on the determination that the activity associated with the second SIM includes MO activity.
  • MO mobile originated
  • the UE 120 includes means for determining that the activity associated with the second SIM includes mobile termination (MT) activity; means for monitoring, for an amount of time, upcoming traffic associated with the second SIM; and/or means for determining whether the upcoming traffic associated with the second SIM includes critical traffic.
  • MT mobile termination
  • the UE 120 includes means for determining that the upcoming traffic associated with the second SIM does not include critical traffic; and/or means for skipping the upcoming traffic associated with the second SIM based at least in part on the determination that the upcoming traffic associated with the second SIM does not include critical traffic.
  • the UE 120 includes means for determining that the NR cell acquisition is unsuccessful; and/or means for performing a connection release associated with the first SIM based at least in part on the determination that the NR cell acquisition is unsuccessful.
  • the UE 120 includes means for performing a tracking area update (TAU) associated with the first SIM based at least in part on performing the connection release associated with the first SIM; and/or means for initiating another NR cell acquisition associated with first SIM based at least in part on performing the TAU.
  • TAU tracking area update
  • the UE 120 includes means for determining a current throughput level associated with the first SIM; means for determining that the current throughput level associated with the first SIM does not satisfy a throughput requirement associated with the UE; and/or means for determining that the NR cell acquisition associated with the first SIM is prioritized based at least in part on the determination that the current throughput level associated with the first SIM does not satisfy the throughput requirement associated with the UE.
  • the UE 120 includes means for measuring a signal of an NR cell associated with the NR cell acquisition; means for determining whether a measurement value of the signal of the NR cell associated with the NR cell acquisition satisfies a threshold; and/or means for determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM based at least in part on the determination of whether the measurement value of the signal of the NR cell associated with the NR cell acquisition satisfies a threshold.
  • the UE 120 includes means for establishing a packet data network (PDN) session associated with the second SIM for packet switched (PS) traffic; means for determining that upcoming traffic associated with the PDN session does not include PS traffic; and/or means for performing a disconnection of the PDN session based at least in part on the determination that upcoming traffic associated with the PDN session does not include PS traffic.
  • PDN packet data network
  • PS packet switched
  • the UE 120 includes means for releasing a PDN session associated with the first SIM based at least in part on a reception of a high-level operating system (HLOS) command indicating to stop PDN traffic; and/or means for establishing the PDN session associated with the second SIM based at least in part on a reception of an HLOS command indicating to start PDN traffic.
  • HLOS high-level operating system
  • the UE 120 includes means for establishing the PDN session associated with the second SIM based at least in part on a reception of an HLOS command indicating to start PDN traffic; and/or means for releasing the PDN session associated with the second SIM based at least in part on a reception of an HLOS command indicating to stop PDN traffic.
  • Fig. 2 is provided as an example. Other examples may differ from what is described with regard to Fig. 2.
  • Fig. 3 is a diagram illustrating an example 300 of a multi-subscriber identity module (SIM) UE, in accordance with various aspects of the present disclosure.
  • a UE 120 may be a multiple SIM (multi-SIM) UE that includes multiple SIMs (two or more SIMs) , shown as a first SIM 305a and a second SIM 305b.
  • the first SIM 305a may be associated with a first subscription (shown as SUB 1)
  • the second SIM 305b may be associated with a second subscription (shown as SUB 2) .
  • a subscription may include a subscription with a network operator (for example, a mobile network operator (MNO) ) that enables the UE 120 to access a wireless network (for example, a radio access network (RAN) ) associated with the network operator.
  • MNO mobile network operator
  • RAN radio access network
  • a SIM 305 may be a removable SIM (for example, a SIM card) or an embedded SIM.
  • a SIM 305 may include an integrated circuit that securely stores an international mobile subscriber identity (IMSI) and a security key, which are used to identify and authenticate a corresponding subscription associated with the SIM 305.
  • IMSI international mobile subscriber identity
  • a SIM 305 may store a list of services that the UE 120 has permission to access using a subscription associated with the SIM 305, such as a data service or a voice service, among other examples.
  • the UE 120 may communicate (for example, in a connected mode, an idle mode, or an inactive mode) with a first base station 310a via a first cell 315a (shown as Cell 1) using the first SIM 305a.
  • a first subscription (SUB 1) of the UE 120 may be used to access the first cell 315a (for example, using a first IMSI for UE identification, using a first security key for UE authentication, using a first list of services that the UE 120 is permitted to access using the first subscription, or by counting data or voice usage on the first cell against the first subscription, among other examples) .
  • the UE 120 may communicate (for example, in a connected mode, an idle mode, or an inactive mode) with a second base station 310b via a second cell 315b (shown as Cell 2) using the second SIM 305b.
  • a second subscription (SUB 2) of the UE 120 may be used to access the second cell 315b (for example, using a second IMSI for UE identification, using a second security key for UE authentication, using a second list of services that the UE 120 is permitted to access using the second subscription, or by counting data or voice usage on the second cell against the second subscription, among other examples) .
  • the first base station 310a and/or the second base station 310b may include one or more of the base stations 110 described above in connection with Figure 1. Although the first cell 315a and the second cell 315b are shown as being provided by different base stations, in some aspects, the first cell 315 and the second cell 315b may be provided by the same base station. Thus, in some aspects, the first base station 310a and the second base station 310b may be integrated into a single base station.
  • the UE 120 may be a single receiver (SR) (sometimes also referred to as single radio) multi-SIM UE, such as an SR multi-SIM multiple standby (SR-MSMS) UE or a single receiver dual SIM dual standby (SR-DSDS) UE, among other examples.
  • SR-MSMS SR multi-SIM multiple standby
  • SR-DSDS single receiver dual SIM dual standby
  • a multi-SIM UE may be capable of switching between two separate mobile network services, may include hardware for maintaining multiple connections (for example, one connection per SIM) in a standby state, or may include hardware (for example, multiple transceivers) for maintaining multiple network connections at the same time, among other examples.
  • an SR-DSDS UE or an SR-MSMS UE may only be capable of receiving data on one connection at a time because radio frequency resources are shared between the multiple subscriptions.
  • an SR-DSDS UE or an SR-MSMS UE may be associated with multiple subscriptions but may include only a single transceiver shared by the multiple subscriptions, a single transmit chain shared by the multiple subscriptions, or a single receive chain shared by the multiple subscriptions, among other examples.
  • a dedicated data service (DDS) subscription may perform data activity, call activity, and/or similar activity.
  • a non-DDS subscription may perform call-related activity, small data activity (e.g., short message service (SMS) activity or multimedia message service (MMS) activity) , and/or similar activity.
  • SMS short message service
  • MMS multimedia message service
  • “Subscription” is used interchangeably with “SIM” herein.
  • the UE may perform activity associated with a DDS subscription and a non-DDS subscription via respective radio resource control (RRC) connections (e.g., different RRC connections for the DDS subscription and the non-DDS subscription) . That is, the UE may perform activity associated with a DDS subscription independently from activity associated with a non-DDS subscription.
  • RRC radio resource control
  • the UE may be required to tune (e.g., adjust and/or configure) the radio frequency (RF) of the UE components (such as an antenna, a receive processor, a transmit processor, a modulator, a demodulator, and/or a controller/processor, among other examples) to perform an activity on a first subscription (e.g., a non-DDS subscription) .
  • a first subscription e.g., a non-DDS subscription
  • the UE may be unable to perform activities on a second subscription (e.g., a DDS subscription) while the RF components are tuned to perform the activity associated with the first subscription.
  • the UE may initiate an NR cell acquisition associated with a DDS subscription (and/or an NR subscription) .
  • the UE may determine that an activity associated with a non-DDS subscription needs to be performed. Therefore, the UE may tune (e.g., adjust and/or configure) RF components of the UE to perform the activity associated with the non-DDS subscription. As a result, the UE may be unable to complete the NR cell acquisition associated with the DDS subscription.
  • adding an NR cell may improve performance of the UE (e.g., increase throughput, increase data rates, and/or improve reliability) , failing to complete the NR cell acquisition may negatively impact the performance of the UE.
  • the UE may not have another opportunity to add an NR cell after failing to complete the NR cell acquisition.
  • a UE in a multi-SIM mode may prioritize an NR cell acquisition associated with a first SIM of the UE over activity associated with a second SIM of the UE.
  • the UE may determine whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM based at least in part on a type of traffic of the activity associated with the second SIM (e.g., the UE may prioritize the NR cell acquisition if the traffic of the activity associated with the second SIM is non-critical traffic or the UE may prioritize the activity associated with the second SIM if the traffic of the activity associated with the second SIM is critical traffic) , a throughput requirement of the UE, and/or one or more measurements of an NR cell associated with the NR cell acquisition, among other examples. Therefore, where the UE prioritizes the NR cell acquisition over the activity associated with the second SIM, the UE may be enabled to add an NR cell associated with the first SIM.
  • a type of traffic of the activity associated with the second SIM e.g., the UE may prioritize the NR cell acquisition if the traffic of the activity associated with the second SIM is non-critical traffic or the UE may prioritize the activity associated with the second SIM if the traffic of the activity associated with
  • performance of the UE may be improved by adding the NR cell and enabling the UE to communicate using the NR cell (e.g., in a non-standalone (NSA) mode and/or in a dual connectivity mode) .
  • NSA non-standalone
  • Fig. 3 is provided as an example. Other examples may differ from what is described with regard to Fig. 3.
  • Fig. 4 is a diagram illustrating an example 400 associated with optimized NR cell acquisition in a multi-SIM mode, in accordance with various aspects of the present disclosure.
  • a UE 120 may be a multi-SIM UE that includes multiple SIMs (two or more SIMs) , shown as a first SIM 405a and a second SIM 405b.
  • the first SIM 405a may be associated with a first subscription (shown as SUB 1)
  • the second SIM 405b may be associated with a second subscription (shown as SUB 2) .
  • the first subscription may be a DDS subscription and/or an NR subscription.
  • the second subscription may be a non-DDS subscription.
  • the UE 120 may communicate with a first cell 410 (e.g., associated with a first base station 110) and a second cell 415 (e.g., associated with a second base station 110) .
  • the first cell 410 may be an NR cell (e.g., may be associated with an NR RAT) .
  • the second cell 410 may be a non-NR cell (e.g., may be associated with a RAT other than NR, such as LTE) .
  • the UE 120 may initiate an NR cell acquisition associated with the first SIM 405a and the first cell 410.
  • the NR cell acquisition may be associated with adding the first cell 410 as a serving cell for the first SIM 405a.
  • the NR cell acquisition may be associated with establishing (or re-establishing) an NR RAT communication connection on the first SIM 405a.
  • the NR cell acquisition may be associated with an NR random access channel (RACH) procedure (e.g., the UE 120 may transmit a connection establishment request to the first cell 410) .
  • RACH NR random access channel
  • the NR cell acquisition may be associated with adding the first cell 410 as a secondary cell group (SCG) in a dual connectivity mode (e.g., in an NSA mode, an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) -NR dual connectivity (ENDC) mode, and/or an NR dual connectivity (NRDC) mode) .
  • the NR cell acquisition may be associated with re-establishing a connection with the first cell 410 (e.g., due to a radio link failure (RLF) and/or a beam failure) .
  • the NR cell acquisition may be associated with a scheduling request (SR) failure with the first cell 410 (e.g., the UE 120 may transmit a request for scheduling grants to the first cell 410) .
  • SR scheduling request
  • the UE 120 may determine that the NR cell acquisition at least partially overlaps (e.g., in the time domain) with activity associated with the second SIM 405b. For example, the UE 120 may determine that the UE 120 is to perform an activity associated with the second SIM 405b while the UE 120 is performing the NR cell acquisition associated with the first SIM 405a.
  • the activity associated with the second SIM 405b may include one or more communications with the second cell 415.
  • the activity associated with the second SIM 405b may include mobile originated (MO) traffic (e.g., traffic that is to be transmitted from the UE 120 to the second cell 415) , mobile termination (MT) traffic (e.g., traffic that is to be transmitted from the second cell 415 to the UE 120) , voice traffic, SMS traffic, and/or MMS traffic, among other examples.
  • the activity associated with the second SIM 405b may be associated with a tracking area update (TAU) procedure.
  • the activity associated with the second SIM 405b may be associated with a cell acquisition for a non-NR RAT, such as an LTE RAT.
  • the activity associated with the second SIM 405b may be associated with a non-NR RAT RACH procedure.
  • the UE 120 may determine a type of the activity associated with the second SIM 405b. For example, the UE 120 may determine whether the activity associated with the second SIM 405b includes critical activity. Critical activity may include voice traffic, SMS traffic, MMS traffic, and/or emergency call traffic, among other examples. In some aspects, the UE 120 may determine that the activity associated with the second SIM 405b includes paging activity (e.g., one or more paging communication from the second cell 415) . In some aspects, the UE 120 may determine that the activity associated with the second SIM 405b includes MO activity (e.g., one or more communications originated at the UE 120 to be transmitted to the second cell 415) .
  • paging activity e.g., one or more paging communication from the second cell 415.
  • MO activity e.g., one or more communications originated at the UE 120 to be transmitted to the second cell 415) .
  • the UE 120 may determine that the activity associated with the second SIM 405b includes MT activity (e.g., one or more communications to be transmitted from the second cell 415 to the UE 120) . In some aspects, the UE 120 may determine that the activity associated with the second SIM 405b includes MT activity, such as MT connection setup activity, based at least in part on receiving an Internet Protocol (IP) Multimedia Subsystem (IMS) session initiation protocol (SIP) invitation communication and/or a non-access stratum (NAS) communication indicating the MT activity.
  • IP Internet Protocol
  • IMS Internet Multimedia Subsystem
  • SIP session initiation protocol
  • NAS non-access stratum
  • the UE 120 may measure one or more signals from the first cell 410 (e.g., from the NR cell) .
  • the UE 120 may measure a reference signal received power (RSRP) , a reference signal received quality (RSRQ) , and/or a signal to noise ratio (SNR) of one or more signals from the first cell 410.
  • the UE 120 may measure one or more beams associated with the NR cell acquisition, such as a serving beam, a target beam, and/or a neighbor beam, among other examples.
  • the UE 120 may determine one or more measurement values (e.g., RSRP values, RSRQ values, and/or SNR values) associated with the one or more signals from the first cell 410.
  • the UE 120 may determine a coverage mode associated with the first cell 410 based at least in part on the one or more measurement values.
  • a coverage mode may indicate a strength of the coverage associated with the first cell 410.
  • the coverage mode may be a near cell coverage mode, a far cell coverage mode, and/or a fading coverage mode.
  • the UE 120 may determine a coverage mode based at least in part on determining whether a measurement value of a signal from the first cell 410 satisfies one or more thresholds (e.g., a RSRP threshold, an RSRQ threshold, and/or an SNR threshold) .
  • the UE 120 may determine a coverage mode based at least in part on determining whether a measurement value of a signal from the first cell 410 falls within a range of measurement values.
  • the UE 120 may determine that the coverage mode associated with the first cell 410 is the near cell coverage mode based at least in part on determining that an RSRP value of a signal associated with the first cell 410 is within a first range of RSRP values (for example, the first range of RSRP values may be from -70 decibel-milliwatts (dBm) to -95 dBm, or similar values) and that an SNR value of the signal associated with the first cell 410 satisfies a first SNR threshold (for example, the first SNR threshold may be 10 or similar values) .
  • a first range of RSRP values for example, the first range of RSRP values may be from -70 decibel-milliwatts (dBm) to -95 dBm, or similar values
  • a first SNR threshold for example, the first SNR threshold may be 10 or similar values
  • the UE 120 may determine that the coverage mode associated with the first cell 410 is the far cell coverage mode based at least in part on determining that an RSRP value of a signal associated with the first cell 410 is within a second range of RSRP values (for example, the second range of RSRP values may be from -96 dBm to -108 dBm, or similar values) and that an SNR value of the signal associated with the first cell 410 satisfies a second SNR threshold (for example, the second SNR threshold may be between 5 and 10, or similar values) .
  • a second range of RSRP values for example, the second range of RSRP values may be from -96 dBm to -108 dBm, or similar values
  • a second SNR threshold for example, the second SNR threshold may be between 5 and 10, or similar values
  • the UE 120 may determine that the coverage mode associated with the first cell 410 is the fading coverage mode based at least in part on determining that an RSRP value of a signal associated with the first cell 410 does not satisfy an RSRP threshold (for example, -110 dBm or similar values) and that an SNR value of the signal associated with the first cell 410 does not satisfy a third SNR threshold (for example, the third SNR threshold hold may be 1 or 0, or similar values) .
  • an RSRP value of a signal associated with the first cell 410 does not satisfy an RSRP threshold (for example, -110 dBm or similar values) and that an SNR value of the signal associated with the first cell 410 does not satisfy a third SNR threshold (for example, the third SNR threshold hold may be 1 or 0, or similar values) .
  • RSRP threshold for example, -110 dBm or similar values
  • the thresholds and/or the measurement value ranges described above may be configured (and/or reconfigured) by a cell (e.g., the first cell 410, the second cell 415, and/or another cell not shown in Fig. 4) . That is, the thresholds and/or the measurement value ranges described above may be flexible. The thresholds and/or the measurement value ranges described above may be based at least on a network evaluation and/or a system evaluation performed by the cell.
  • the UE 120 may determine whether to prioritize the NR cell acquisition associated with the first SIM 405a or the activity associated with the second SIM 405b. As described herein, determining whether to prioritize the NR cell acquisition associated with the first SIM 405a or the activity associated with the second SIM 405b may be associated with determining whether RF components of the UE 120 are to be used for (e.g., tuned to, configured to, and/or adjusted to) performing the NR cell acquisition associated with the first SIM 405a or the activity associated with the second SIM 405b.
  • the UE 120 may determine whether to prioritize the NR cell acquisition associated with the first SIM 405a or the activity associated with the second SIM 405b based at least in part on determining whether the activity associated with the second SIM includes critical activity (e.g., MO/MT voice traffic, MO/MT SMS or MMS traffic, and/or emergency call traffic, among other examples) . For example, if the activity associated with the second SIM 405b includes critical activity, then the UE 120 may determine that the activity associated with the second SIM 405b is to be prioritized over the NR cell acquisition associated with the first SIM 405a. In some aspects, if the activity associated with the second SIM 405b does not include critical activity, then the UE 120 may determine that the NR cell acquisition associated with the first SIM 405a is to be prioritized over the activity associated with the second SIM 405b.
  • critical activity e.g., MO/MT voice traffic, MO/MT SMS or MMS traffic, and/or emergency call traffic, among other examples
  • the UE 120 may determine that the NR cell acquisition associated with the first SIM 405a is to be prioritized over the activity associated with the second SIM 405b.
  • paging activity may include one or more paging communications (and/or one or more repetitions of a paging communication) . Therefore, the UE 120 may prioritize the NR cell acquisition associated with the first SIM 405a over the paging activity by skipping (e.g., dropping) paging activity associated with the second SIM 405b while the UE 120 is performing the NR cell acquisition associated with the first SIM 405a.
  • the UE 120 may be enabled to receive the paging activity after completing the NR cell acquisition (e.g., as the paging activity may include one or more paging communications and/or one or more repetitions) a performance of the UE may not be impacted by skipping the paging activity associated with the second SIM 405b while the UE 120 is performing the NR cell acquisition associated with the first SIM 405a.
  • the UE 120 may be enabled to realize the benefits of adding the NR cell (e.g., the first cell 410) on the first SIM 405a without impacting performance associated with the second SIM 405b.
  • the UE 120 may determine that the NR cell acquisition associated with the first SIM 405a is to be prioritized over the activity associated with the second SIM 405b.
  • the UE 120 may prioritize the NR cell acquisition associated with the first SIM 405a over the MO activity by delaying (e.g., not transmitting) the MO activity for an amount of time.
  • the amount of time that the MO activity is delayed may be based at least in part on an amount of time required to complete the NR cell acquisition (e.g., the UE 120 may determine the amount of time that the MO activity is to be delayed based at least in part on the amount of time required to complete the NR cell acquisition) .
  • the UE 120 may be pre-configured with the amount of time that the MO activity is to be delayed.
  • the UE 120 may be configured (e.g., by the first cell 410, the second cell 415, and/or another cell not shown in Fig. 4) with the amount of time that the MO activity is to be delayed.
  • the UE 120 may determine that the NR cell acquisition associated with the first SIM 405a is to be prioritized over the activity associated with the second SIM 405b. In some aspects, the UE 120 may periodically monitor upcoming traffic associated with the MT activity. For example, the UE 120 may monitor upcoming traffic associated with the MT activity for an upcoming period of time. The UE 120 may determine whether the upcoming traffic includes traffic associated with a critical activity.
  • MT activity e.g., non-critical MT activity
  • the UE 120 may determine that the NR cell acquisition associated with the first SIM 405a is to be prioritized over the MT activity (e.g., for the upcoming period of time) . If the upcoming traffic does include traffic associated with a critical activity, then the UE 120 may determine that the MT traffic is to be prioritized over the NR cell acquisition. The UE 120 may prioritize the NR cell acquisition associated with the first SIM 405a over the MT activity by skipping (e.g., dropping) the MT activity associated with the second SIM 405b. The UE 120 may periodically determine whether to prioritize the NR cell acquisition associated with the first SIM 405a or the MT activity associated with the second SIM 405b, as described above.
  • the MT activity may be associated with a packet data network (PDN) session (e.g., an IMS PDN session) on the second SIM 405b.
  • PDN packet data network
  • a connection for the PDN session may be triggered by a high-level operating system (HLOS) associated with the UE 120. Therefore, in some aspects, the UE 120 may be unable to determine or predict upcoming traffic (e.g., upcoming packet switched (PS) traffic) associated with the PDN session (e.g., as the PDN session may be connected based at least in part on a command transmitted to a modem of the UE 120 by the HLOS) .
  • upcoming traffic e.g., upcoming packet switched (PS) traffic
  • the UE 120 may establish the PDN session associated with the second SIM 405b for packet switched (PS) traffic only (e.g., when an IMS PDN is connected) .
  • PS packet switched
  • the UE 120 may determine that no PS traffic is needed for the PDN session.
  • the UE 120 may disconnect the PDN session associated with the second SIM 405b based at least in part on the determination that no PS traffic is needed for the PDN session. In this way, the UE 120 may prioritize the NR cell acquisition by avoiding interruptions due to unexpected traffic associated with the PDN session.
  • the UE 120 may perform an IMS registration procedure upon a powering up of the UE 120, the UE 120 may perform an IMS registration procedure.
  • the UE 120 may disconnect the PDN session associated with the second SIM 405b upon a completion of the IMS registration procedure.
  • the UE 120 may switch a DDS from the second SIM 405b to the first SIM 405a to prioritize the NR cell acquisition associated with the first SIM 405a (e.g., to enable the first SIM 405a to perform the NR cell acquisition while the second SIM 405b is associated background activity associated with a PDN session) .
  • the UE 120 may perform a permanent DDS switch or a temporary DDS switch.
  • a permanent DDS switch may include the UE 120 (e.g., the modem of the UE 120) releasing an IMS PDN session associated with the first SIM 405a based at least in part on receiving an HLOS command indicating to stop an IMS service (e.g., an HLOS stop internet command) .
  • the UE 120 may establish an IMS PDN session associated with the second SIM 405b based at least in part on receiving an HLOS command indicating to start an IMS service (e.g., an HLOS start internet command) .
  • a temporary permanent DDS switch may include the UE 120 (e.g., the modem of the UE 120) establishing an IMS PDN session associated with the second SIM 405b based at least in part on receiving an HLOS command indicating to start an IMS service (e.g., an HLOS start internet command) .
  • the UE 120 may release an IMS PDN session associated with second SIM 405b based at least in part on receiving an HLOS command indicating to stop an IMS service (e.g., an HLOS stop internet command) .
  • an IMS PDN session associated with the first SIM 405a may not be released and/or reconnected.
  • the UE 120 may determine whether to prioritize the NR cell acquisition associated with the first SIM 405a or the activity associated with the second SIM 405b based at least in part on a throughput requirement associated with the UE 120. For example, the UE 120 may determine a current (e.g., before completing the NR cell acquisition) throughput level associated with the first SIM 405a. The UE 120 may determine whether the current throughput level satisfies a threshold that is associated with the throughput requirement associated with the UE 120. If the current throughput level does not satisfy the threshold, then the UE 120 may determine that the NR cell acquisition associated with the first SIM 405a is to be prioritized over the activity associated with the second SIM 405b.
  • a current e.g., before completing the NR cell acquisition
  • the UE 120 may determine whether the current throughput level satisfies a threshold that is associated with the throughput requirement associated with the UE 120. If the current throughput level does not satisfy the threshold, then the UE 120 may determine that the
  • the UE 120 may determine whether to prioritize the NR cell acquisition associated with the first SIM 405a or the activity associated with the second SIM 405b based at least in part on one or more measurement values associated with the NR cell (e.g., the first cell 410) . For example, as described above, the UE 120 may determine one or more measurement values associated with a signal from the first cell 410. The UE 120 may determine whether a measurement value, of the one or more measurement values, satisfies a threshold. The UE 120 may determine whether to prioritize the NR cell acquisition associated with the first SIM 405a or the activity associated with the second SIM 405b based at least in part on determining whether the measurement value satisfies the threshold.
  • the UE 120 may determine whether to prioritize the NR cell acquisition associated with the first SIM 405a or the activity associated with the second SIM 405b based at least in part on determining whether the measurement value satisfies the threshold.
  • the UE 120 may determine that the NR cell acquisition associated with the first SIM 405a is to be prioritized over the activity associated with the second SIM 405b. If the measurement value does not satisfy the threshold, then the UE 120 may determine that the activity associated with the second SIM 405b is to be prioritized over the NR cell acquisition associated with the first SIM 405a.
  • the UE 120 may determine whether to prioritize the NR cell acquisition associated with the first SIM 405a or the activity associated with the second SIM 405b based at least in part on a coverage mode associated with the first cell 410. For example, as described above, the UE 120 may determine a coverage mode (e.g., near cell coverage mode, far cell coverage mode, or fading coverage mode) associated with the first cell 410. If the UE 120 determines that the coverage mode associated with the first cell 410 is the near cell coverage mode or the far cell coverage mode, then the UE 120 may determine that the NR cell acquisition associated with the first SIM 405a is to be prioritized over the activity associated with the second SIM 405b.
  • a coverage mode e.g., near cell coverage mode, far cell coverage mode, or fading coverage mode
  • the UE 120 may determine that the activity associated with the second SIM 405b is to be prioritized over the NR cell acquisition associated with the first SIM 405a. In this way, the UE 120 may determine to prioritize the NR cell acquisition associated with the first SIM 405a only when a signal associated with the NR cell (e.g., the first cell 410) is not poor.
  • a signal associated with the NR cell e.g., the first cell 410
  • the UE 120 may perform the NR cell acquisition associated with the first SIM 405a if the UE 120 determines that the NR cell acquisition associated with the first SIM 405a is prioritized over the activity associated with the second SIM 405b. For example, the UE 120 may skip (e.g., drop) the activity associated with the second SIM 405b until the UE 120 completes the NR cell acquisition associated with the first SIM 405a.
  • the UE 120 may perform the activity associated with the second SIM 405b if the UE 120 determines that the activity associated with the second SIM 405b is prioritized over the NR cell acquisition associated with the first SIM 405a. For example, the UE 120 may tune (e.g., adjust and/or configure) RF components of the UE 120 to perform the activity associated with the second SIM 405b. In some aspects, the UE 120 may attempt to continue the NR cell acquisition associated with the first SIM 405a after the completion of the activity associated with the second SIM 405b.
  • the UE 120 may initiate another NR cell acquisition associated with the first SIM 405a if the NR cell acquisition associated with the first SIM 405a fails (e.g., when the NR cell acquisition associated with the first SIM 405a is prioritized over the activity associated with the second SIM 405b and/or when the activity associated with the second SIM 405b is prioritized over the NR cell acquisition associated with the first SIM 405a) .
  • the UE 120 may determine that the NR cell acquisition has failed based at least in part on attempting a maximum number of RACH attempts and/or based at least in part on determining that a measurement report associated with the NR cell acquisition has not been communicated, among other examples.
  • the UE 120 may transmit, to the first cell 410, an indication that the NR cell acquisition has failed.
  • the UE 120 may initiate another NR cell acquisition associated with the first SIM 405a after the completion of the activity associated with the second SIM 405b.
  • the UE 120 may initiate another NR cell acquisition associated with the first SIM 405a by performing a connection release associated with the first SIM 405a based at least in part on the determination that the NR cell acquisition is unsuccessful.
  • the UE 120 may trigger a TAU procedure associated with the first SIM 405a by transmitting, to the first cell 410 and/or the second cell 415, a TAU request.
  • the first cell 410 and/or the second cell 415 may accept the TAU request and transmit, to the UE 120, a TAU acceptance.
  • the first cell 410 and/or the second cell 415 may reconfigure the UE 120 with one or more measurement reports based at least in part on performing the TAU procedure.
  • the first cell 410 and/or the second cell 415 may reconfigure one or more parameters for adding an NR cell, such as one or more primary secondary cell (PSCell) addition parameters, among other examples.
  • the UE 120 may be enabled to initiate another NR cell acquisition associated with the first SIM 405a.
  • performance of the UE 120 may be improved by quickly giving the UE 120 another opportunity to add an NR cell associated with the first SIM 405a.
  • performance of the UE 120 may be improved by adding the NR cell and enabling the UE to communicate using the NR cell (e.g., in an NSA mode) mode and/or in a dual connectivity mode) .
  • the UE 120 may be enabled to perform critical activity associated with the second SIM 405b that overlaps (e.g., in the time domain) with the NR cell acquisition associated with the first SIM 405a.
  • Fig. 4 is provided as an example. Other examples may differ from what is described with respect to Fig. 4.
  • Fig. 5 is a diagram illustrating an example process 500 performed, for example, by a UE, in accordance with various aspects of the present disclosure.
  • Example process 500 is an example where the UE (e.g., UE 120) performs operations associated with optimized NR cell acquisition in a multi-SIM mode.
  • the UE e.g., UE 120
  • process 500 may include initiating an NR cell acquisition associated with a first SIM of the UE (block 510) .
  • the UE e.g., using cell acquisition component 608, depicted in Fig. 6
  • process 500 may include determining that the NR cell acquisition overlaps with activity associated with a second SIM of the UE (block 520) .
  • the UE e.g., using determination component 610, depicted in Fig. 6
  • process 500 may include determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM (block 530) .
  • the UE e.g., using determination component 610, depicted in Fig. 6
  • process 500 may include prioritizing, based at least in part on a determination that the NR cell acquisition associated with the first SIM is prioritized, the NR cell acquisition associated with the first SIM over the activity associated with the second SIM (block 540) .
  • the UE e.g., using prioritization component 612, depicted in Fig. 6
  • Process 500 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.
  • the NR cell acquisition includes at least one of: an NR RACH procedure, an NR SCG addition in an NSA mode, or an NR cell establishment or re-establishment.
  • determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM includes determining whether the activity associated with the second SIM includes critical activity, and determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM based at least in part on the determination of whether the activity associated with the second SIM includes critical activity.
  • determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM includes determining that the activity associated with the second SIM includes paging activity, and wherein prioritizing the NR cell acquisition associated with the first SIM includes skipping the paging activity associated with the second SIM based at least in part on the determination that the activity associated with the second SIM includes paging activity.
  • determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM includes determining that the activity associated with the second SIM includes MO activity, and wherein prioritizing the NR cell acquisition associated with the first SIM includes delaying, for an amount of time, the MO activity associated with the second SIM based at least in part on the determination that the activity associated with the second SIM includes MO activity.
  • the amount of time associated with delaying the MO activity is based at least in part on an amount of time required to complete the NR cell acquisition.
  • determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM includes determining that the activity associated with the second SIM includes MT activity, monitoring, for an amount of time, upcoming traffic associated with the second SIM, and determining whether the upcoming traffic associated with the second SIM includes critical traffic.
  • prioritizing the NR cell acquisition associated with the first SIM includes determining that the upcoming traffic associated with the second SIM does not include critical traffic, and skipping the upcoming traffic associated with the second SIM based at least in part on the determination that the upcoming traffic associated with the second SIM does not include critical traffic.
  • process 500 includes determining that the NR cell acquisition is unsuccessful, and performing a connection release associated with the first SIM based at least in part on the determination that the NR cell acquisition is unsuccessful.
  • process 500 includes performing a TAU associated with the first SIM based at least in part on performing the connection release associated with the first SIM, and initiating another NR cell acquisition associated with first SIM based at least in part on performing the TAU.
  • determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM includes determining a current throughput level associated with the first SIM, determining that the current throughput level associated with the first SIM does not satisfy a throughput requirement associated with the UE, and determining that the NR cell acquisition associated with the first SIM is prioritized based at least in part on the determination that the current throughput level associated with the first SIM does not satisfy the throughput requirement associated with the UE.
  • determining whether to prioritize the NR cell acquisition associated with the first SIM the activity associated with the second SIM includes measuring a signal of an NR cell associated with the NR cell acquisition, determining whether a measurement value of the signal of the NR cell associated with the NR cell acquisition satisfies a threshold, and determining whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM based at least in part on the determination of whether the measurement value of the signal of the NR cell associated with the NR cell acquisition satisfies a threshold.
  • the measurement value of the signal of the NR cell is at least one of: a reference signal received power value, a reference signal received quality value, or a signal to noise ratio value.
  • the threshold is at least one of: a reference signal received power threshold, a reference signal received quality threshold, or a signal to noise ratio threshold.
  • prioritizing the NR cell acquisition associated with the first SIM includes establishing a PDN session associated with the second SIM for PS traffic; determining that upcoming traffic associated with the PDN session does not include PS traffic; and performing a disconnection of the PDN session based at least in part on the determination that upcoming traffic associated with the PDN session does not include PS traffic.
  • establishing the PDN session associated with the second SIM includes releasing a PDN session associated with the first SIM based at least in part on a reception of an HLOS command indicating to stop PDN traffic; and establishing the PDN session associated with the second SIM based at least in part on a reception of an HLOS command indicating to start PDN traffic.
  • establishing the PDN session associated with the second SIM includes establishing the PDN session associated with the second SIM based at least in part on a reception of an HLOS command indicating to start PDN traffic; and releasing the PDN session associated with the second SIM based at least in part on a reception of an HLOS command indicating to stop PDN traffic.
  • process 500 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 5. Additionally, or alternatively, two or more of the blocks of process 500 may be performed in parallel.
  • Fig. 6 is a block diagram of an example apparatus 600 for wireless communication.
  • the apparatus 600 may be a UE, or a UE may include the apparatus 600.
  • the apparatus 600 includes a reception component 602 and a transmission component 604, which may be in communication with one another (for example, via one or more buses and/or one or more other components) .
  • the apparatus 600 may communicate with another apparatus 606 (such as a UE, a base station, or another wireless communication device) using the reception component 602 and the transmission component 604.
  • the apparatus 600 may include one or more of a cell acquisition component 608, a determination component 610, or a prioritization component 612, among other examples.
  • the apparatus 600 may be configured to perform one or more operations described herein in connection with Fig. 4. Additionally, or alternatively, the apparatus 600 may be configured to perform one or more processes described herein, such as process 500 of Fig. 5, or a combination thereof.
  • the apparatus 600 and/or one or more components shown in Fig. 6 may include one or more components of the UE described above in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 6 may be implemented within one or more components described above in connection with Fig. 2. Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or a processor to perform the functions or operations of the component.
  • the reception component 602 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 606.
  • the reception component 602 may provide received communications to one or more other components of the apparatus 600.
  • the reception component 602 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples) , and may provide the processed signals to the one or more other components of the apparatus 606.
  • the reception component 602 may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a controller/processor, a memory, or a combination thereof, of the UE described above in connection with Fig. 2.
  • the transmission component 604 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 606.
  • one or more other components of the apparatus 606 may generate communications and may provide the generated communications to the transmission component 604 for transmission to the apparatus 606.
  • the transmission component 604 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 606.
  • the transmission component 604 may include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the UE described above in connection with Fig. 2. In some aspects, the transmission component 604 may be collocated with the reception component 602 in a transceiver.
  • the cell acquisition component 608 may initiate an NR cell acquisition associated with a first SIM of the UE.
  • the cell acquisition component 608 may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the UE described above in connection with Fig. 2.
  • the determination component 610 may determine that the NR cell acquisition overlaps with activity associated with a second SIM of the UE.
  • the determination component 610 may include a receive processor, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the UE described above in connection with Fig. 2.
  • the determination component 610 may determine whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM.
  • the prioritization component 612 may prioritize, based at least in part on a determination that the NR cell acquisition associated with the first SIM is prioritized, the NR cell acquisition associated with the first SIM over the activity associated with the second SIM.
  • the prioritization component 612 may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the UE described above in connection with Fig. 2.
  • the determination component 610 may determine whether the activity associated with the second SIM includes critical activity. The determination component 610 may determine whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM based at least in part on the determination of whether the activity associated with the second SIM includes critical activity.
  • the determination component 610 may determine that the activity associated with the second SIM includes paging activity.
  • the prioritization component 612 may skip the paging activity associated with the second SIM based at least in part on the determination that the activity associated with the second SIM includes paging activity.
  • the determination component 610 may determine that the activity associated with the second SIM includes MO activity.
  • the prioritization component 612 may delay, for an amount of time, the MO activity associated with the second SIM based at least in part on the determination that the activity associated with the second SIM includes MO activity.
  • the determination component 610 may determine that the activity associated with the second SIM includes MT activity.
  • the prioritization component 612 may monitor, for an amount of time, upcoming traffic associated with the second SIM.
  • the determination component 610 may determine whether the upcoming traffic associated with the second SIM includes critical traffic.
  • the determination component 610 may determine that the upcoming traffic associated with the second SIM does not include critical traffic.
  • the prioritization component 612 may skip the upcoming traffic associated with the second SIM based at least in part on the determination that the upcoming traffic associated with the second SIM does not include critical traffic.
  • the determination component 610 may determine that the NR cell acquisition is unsuccessful.
  • the cell acquisition component 608 may perform a connection release associated with the first SIM based at least in part on the determination that the NR cell acquisition is unsuccessful.
  • the cell acquisition component 608 may perform a TAU associated with the first SIM based at least in part on performing the connection release associated with the first SIM.
  • the cell acquisition component 608 may initiate another NR cell acquisition associated with first SIM based at least in part on performing the TAU.
  • the determination component 610 may determine a current throughput level associated with the first SIM. The determination component 610 may determine that the current throughput level associated with the first SIM does not satisfy a throughput requirement associated with the UE. The determination component 610 may determine that the NR cell acquisition associated with the first SIM is prioritized based at least in part on the determination that the current throughput level associated with the first SIM does not satisfy the throughput requirement associated with the UE.
  • the cell acquisition component 608 may measure a signal of an NR cell associated with the NR cell acquisition.
  • the determination component 610 may determine whether a measurement value of the signal of the NR cell associated with the NR cell acquisition satisfies a threshold.
  • the determination component 610 may determine whether to prioritize the NR cell acquisition associated with the first SIM or the activity associated with the second SIM based at least in part on the determination of whether the measurement value of the signal of the NR cell associated with the NR cell acquisition satisfies a threshold.
  • the prioritization component 612 may establish a PDN session associated with the second SIM for PS traffic.
  • the determination component 610 may determine that upcoming traffic associated with the PDN session does not include PS traffic.
  • the prioritization component 612 may perform a disconnection of the PDN session based at least in part on the determination that upcoming traffic associated with the PDN session does not include PS traffic.
  • the prioritization component 612 may release a PDN session associated with the first SIM based at least in part on a reception (e.g., by the reception component 602) of an HLOS command indicating to stop PDN traffic.
  • the prioritization component 612 may establish the PDN session associated with the second SIM based at least in part on a reception (e.g., by the reception component 602) of an HLOS command indicating to start PDN traffic.
  • the prioritization component 612 may establish the PDN session associated with the second SIM based at least in part on a reception (e.g., by the reception component 602) of an HLOS command indicating to start PDN traffic.
  • the prioritization component 612 may release the PDN session associated with the second SIM based at least in part on a reception (e.g., by the reception component 602) of an HLOS command indicating to stop PDN traffic.
  • Fig. 6 The number and arrangement of components shown in Fig. 6 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 6. Furthermore, two or more components shown in Fig. 6 may be implemented within a single component, or a single component shown in Fig. 6 may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in Fig. 6 may perform one or more functions described as being performed by another set of components shown in Fig. 6.
  • Fig. 7 is a block diagram of an example apparatus 700 for wireless communication.
  • the apparatus 700 may be a base station, or a base station may include the apparatus 700.
  • the apparatus 700 includes a reception component 702 and a transmission component 704, which may be in communication with one another (for example, via one or more buses and/or one or more other components) .
  • the apparatus 700 may communicate with another apparatus 706 (such as a UE, a base station, or another wireless communication device) using the reception component 702 and the transmission component 704.
  • the apparatus 700 may include a cell acquisition component 708, among other examples.
  • the apparatus 700 may be configured to perform one or more operations described herein in connection with Fig. 4. Additionally, or alternatively, the apparatus 700 may be configured to perform one or more processes described herein, such as process 500 of Fig. 5, or a combination thereof.
  • the apparatus 700 and/or one or more components shown in Fig. 7 may include one or more components of the base station described above in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 7 may be implemented within one or more components described above in connection with Fig. 2. Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or a processor to perform the functions or operations of the component.
  • the reception component 702 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 706.
  • the reception component 702 may provide received communications to one or more other components of the apparatus 700.
  • the reception component 702 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples) , and may provide the processed signals to the one or more other components of the apparatus 706.
  • the reception component 702 may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a controller/processor, a memory, or a combination thereof, of the base station described above in connection with Fig. 2.
  • the transmission component 704 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 706.
  • one or more other components of the apparatus 706 may generate communications and may provide the generated communications to the transmission component 704 for transmission to the apparatus 706.
  • the transmission component 704 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 706.
  • the transmission component 704 may include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the base station described above in connection with Fig. 2. In some aspects, the transmission component 704 may be collocated with the reception component 702 in a transceiver.
  • the reception component 702 may receive, from a UE, a request to initiate an NR cell acquisition.
  • the cell acquisition component 708 may perform a cell acquisition procedure, with the UE, to add a cell associated with the apparatus 700 as a serving cell for the UE based at least in part on the reception of the request to initiate the NR cell acquisition.
  • the cell acquisition component 708 may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the base station described above in connection with Fig. 2.
  • the cell acquisition component 708 may configure the UE with one or more measurement reports associated with the cell acquisition procedure.
  • Fig. 7 The number and arrangement of components shown in Fig. 7 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 7. Furthermore, two or more components shown in Fig. 7 may be implemented within a single component, or a single component shown in Fig. 7 may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in Fig. 7 may perform one or more functions described as being performed by another set of components shown in Fig. 7.
  • the term “component” is intended to be broadly construed as hardware, firmware, and/or a combination of hardware and software.
  • a processor is implemented in hardware, firmware, and/or a combination of hardware and software. It will be apparent that systems and/or methods described herein may be implemented in different forms of hardware, firmware, and/or a combination of hardware and software. The actual specialized control hardware or software code used to implement these systems and/or methods is not limiting of the aspects. Thus, the operation and behavior of the systems and/or methods were described herein without reference to specific software code-it being understood that software and hardware can be designed to implement the systems and/or methods based, at least in part, on the description herein.
  • satisfying a threshold may, depending on the context, refer to a value being greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, and/or the like.
  • “at least one of: a, b, or c” is intended to cover a, b, c, a-b, a-c, b-c, and a-b-c, as well as any combination with multiples of the same element (e.g., a-a, a-a-a, a-a-b, a-a-c, a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or any other ordering of a, b, and c) .
  • the phrase “only one” or similar language is used.
  • the terms “has, ” “have, ” “having, ” and/or the like are intended to be open-ended terms.
  • the phrase “based on” is intended to mean “based, at least in part, on” unless explicitly stated otherwise.
  • the term “or” is intended to be inclusive when used in a series and may be used interchangeably with “and/or, ” unless explicitly stated otherwise (e.g., if used in combination with “either” or “only one of” ) .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Divers aspects de la présente divulgation portent d'une manière générale sur la communication sans fil. Selon certains aspects, un équipement utilisateur (UE) peut lancer une acquisition de cellule de nouvelle radio (NR) associée à un premier module d'identité d'abonné (SIM) de l'UE ; L'UE peut déterminer que l'acquisition de cellule NR chevauche l'activité associée à un second SIM de l'UE. L'UE peut déterminer s'il faut donner la priorité à l'acquisition de cellule NR associée au premier SIM ou à l'activité associée au second SIM. L'UE peut donner la priorité, sur la base, au moins en partie, d'une détermination que l'acquisition de cellule NR associée au premier SIM est prioritaire, à l'acquisition de cellule NR associée au premier SIM qui prime sur l'activité associée au second SIM. La divulgation concerne également de nombreux autres aspects.
PCT/CN2020/119877 2020-10-08 2020-10-08 Techniques pour une acquisition de cellule de nouvelle radio optimisée dans un mode à multi-module d'identité d'abonné WO2022073169A1 (fr)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107211444A (zh) * 2015-01-29 2017-09-26 高通股份有限公司 用于提供传输跳过策略以提高多用户身份模块(sim)无线通信设备的性能的系统和方法
CN108886828A (zh) * 2016-01-20 2018-11-23 高通股份有限公司 用于在无线通信设备上通过相同载波频率执行多个用户识别模块（sim）功能的系统和方法

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CN107211444A (zh) * 2015-01-29 2017-09-26 高通股份有限公司 用于提供传输跳过策略以提高多用户身份模块(sim)无线通信设备的性能的系统和方法
CN108886828A (zh) * 2016-01-20 2018-11-23 高通股份有限公司 用于在无线通信设备上通过相同载波频率执行多个用户识别模块（sim）功能的系统和方法

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LG ELECTRONICS: "Initiating Emergency Call by UEs with multiple SIMs", 3GPP DRAFT; S1-191074 INITIATING EMERGENCY CALL BY UES WITH MULTIPLE SIMS, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. TSG SA, no. Suzhou, China; 20190506 - 20190510, 29 April 2019 (2019-04-29), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051719020 *

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