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WO2021248365A1 - Initiation de politique de sélection de route pour un abonnement non par défaut - Google Patents

Initiation de politique de sélection de route pour un abonnement non par défaut Download PDF

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Publication number
WO2021248365A1
WO2021248365A1 PCT/CN2020/095355 CN2020095355W WO2021248365A1 WO 2021248365 A1 WO2021248365 A1 WO 2021248365A1 CN 2020095355 W CN2020095355 W CN 2020095355W WO 2021248365 A1 WO2021248365 A1 WO 2021248365A1
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WO
WIPO (PCT)
Prior art keywords
subscription
route selection
selection policy
network
network associated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2020/095355
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English (en)
Inventor
Hao Zhang
Wei He
Chaofeng HUI
Fojian ZHANG
Jian Li
Tianya LIN
Yuankun ZHU
Yi Liu
Haibo Liu
Pan JIANG
Bing LENG
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Qualcomm Inc
Original Assignee
Qualcomm Inc
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Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Priority to PCT/CN2020/095355 priority Critical patent/WO2021248365A1/fr
Publication of WO2021248365A1 publication Critical patent/WO2021248365A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/60—Subscription-based services using application servers or record carriers, e.g. SIM application toolkits
    • 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

Definitions

  • the following relates generally to wireless communications and more specifically to route selection policy initiation for a non-default subscription.
  • Wireless communications systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power) .
  • Examples of such multiple-access systems include fourth generation (4G) systems such as Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems, and fifth generation (5G) systems which may be referred to as New Radio (NR) systems.
  • 4G systems such as Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems
  • 5G systems which may be referred to as New Radio (NR) systems.
  • a wireless multiple-access communications system may include one or more base stations or one or more network access nodes, each simultaneously supporting communication for multiple communication devices, which may be otherwise known as user equipment (UE) .
  • UE user equipment
  • a UE may support communications with base stations using multiple networks, each associated with a different subscription at the UE. Improved techniques at the UE for communicating with different networks, including networks associated with default and non-default subscriptions, may be desirable.
  • the described techniques relate to improved methods, systems, devices, and apparatuses that support route selection policy initiation for a non-default subscription.
  • the described techniques provide for a user equipment (UE) to effectively communicate with a wireless network using route selection policies associated with a default and non-default subscription of the UE.
  • UE user equipment
  • a UE may be a dual subscription dual standby (DSDS) UE that is configured to operate in a dual subscription mode.
  • the UE may support multiple subscriptions including a first subscription and a second subscription corresponding, at least in some cases, to different subscriber identify modules (SIMs) of the UE.
  • SIMs subscriber identify modules
  • the first subscription may be a default subscription associated with a first network and, in some cases, a first SIM, and network access associated with the first subscription may be in accordance with a first route selection policy (e.g., a first UE route selection policy (URSP) ) .
  • the second subscription may be a non-default subscription associated with a second network and a second SIM, and network access associated with the second subscription may be in accordance with a second route selection policy (e.g., a second URSP) .
  • a first route selection policy e.g., a first UE route selection policy (URSP)
  • the UE may determine that the second route selection policy is absent from the UE, and the UE may register with a network associated with the second subscription for the purpose of obtaining the second route selection policy.
  • the UE may register with the second network at power-up of the UE, or during a time where the UE is in an idle mode for the network associated with the first subscription.
  • the UE may register with the network associated with the second subscription based on determining that the second route selection policy is absent.
  • the UE may monitor for receipt of the second route selection policy associated with the second subscription for a threshold period of time (e.g., configured by a timer at the UE) .
  • the UE may de-register with the network associated with the second subscription after receiving the route selection policy, or upon expiration of a timer.
  • a method of wireless communications at a UE is described.
  • the method may include identifying that the UE is configured to operate in a dual subscription mode that includes a first subscription and a second subscription, the first subscription being a default subscription, where network access via the first subscription is in accordance with a first route selection policy, and network access via the second subscription is in accordance with a second route selection policy, determining that the second route selection policy is absent from the UE, registering with a network associated with the second subscription based on the second route selection policy being absent from the UE, and monitoring for receipt of the second route selection policy while registered with the network associated with the second subscription.
  • the apparatus may include a processor, memory coupled with the processor, and instructions stored in the memory.
  • the instructions may be executable by the processor to cause the apparatus to identify that the UE is configured to operate in a dual subscription mode that includes a first subscription and a second subscription, the first subscription being a default subscription, where network access via the first subscription is in accordance with a first route selection policy, and network access via the second subscription is in accordance with a second route selection policy, determine that the second route selection policy is absent from the UE, register with a network associated with the second subscription based on the second route selection policy being absent from the UE, and monitor for receipt of the second route selection policy while registered with the network associated with the second subscription.
  • the apparatus may include means for identifying that the UE is configured to operate in a dual subscription mode that includes a first subscription and a second subscription, the first subscription being a default subscription, where network access via the first subscription is in accordance with a first route selection policy, and network access via the second subscription is in accordance with a second route selection policy, determining that the second route selection policy is absent from the UE, registering with a network associated with the second subscription based on the second route selection policy being absent from the UE, and monitoring for receipt of the second route selection policy while registered with the network associated with the second subscription.
  • a non-transitory computer-readable medium storing code for wireless communications at a UE is described.
  • the code may include instructions executable by a processor to identify that the UE is configured to operate in a dual subscription mode that includes a first subscription and a second subscription, the first subscription being a default subscription, where network access via the first subscription is in accordance with a first route selection policy, and network access via the second subscription is in accordance with a second route selection policy, determine that the second route selection policy is absent from the UE, register with a network associated with the second subscription based on the second route selection policy being absent from the UE, and monitor for receipt of the second route selection policy while registered with the network associated with the second subscription.
  • registering with the network associated with the second subscription may include operations, features, means, or instructions for registering with a network associated with the first subscription at power-on of the UE, entering an idle mode in communications with the network associated with the first subscription, detecting that the UE may be in idle mode with respect to the first subscription, and registering with the network associated with the second subscription based on the UE being in idle mode with respect to the first subscription.
  • determining that the second route selection policy may be absent from the UE further may include operations, features, means, or instructions for determining that the second route selection policy may be absent from the UE at power-on of the UE.
  • registering with the network associated with the second subscription may include operations, features, means, or instructions for registering with the network associated with the second subscription at power-on of the UE based on absence of the second route selection policy being determined at power-on of the UE.
  • monitoring for receipt of the second route selection policy may include operations, features, means, or instructions for configuring a timer for a threshold duration of time, and maintaining an active connection with the network associated with the second subscription for the threshold duration of time.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for monitoring for receipt of the second route selection policy for the threshold duration of time, identifying that the second route selection policy may be not received during the threshold duration of time, and de-registering with the network associated with the second subscription based on expiration of the timer.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for identifying that the second route selection policy may be received before expiration of the timer, and de-registering with the network associated with the second subscription based on receipt of the second route selection policy.
  • the threshold duration of time associated with the timer may be configurable.
  • the threshold duration of time includes default time of 10 seconds.
  • registering with the network associated with the second subscription further may include operations, features, means, or instructions for transmitting a registration request message to the network associated with the second subscription, receiving, from the network associated with the second subscription, a registration accept message in response to the registration request message, and registering with the network associated with the second subscription based on receipt of the registration accept message.
  • the second route selection policy includes a network access rule for a corresponding application of the UE, and where the network access rule for the corresponding application of the UE may be absent from the first route selection policy.
  • FIG. 1 illustrates an example of a system for wireless communications that supports route selection policy initiation for a non-default subscription in accordance with aspects of the present disclosure.
  • FIG. 2 illustrates an example of a wireless communications network that supports route selection policy initiation for a non-default subscription in accordance with aspects of the present disclosure.
  • FIG. 3 illustrates an example of a process flow that supports route selection policy initiation for a non-default subscription in accordance with aspects of the present disclosure.
  • FIG. 4 illustrates an example of a process flow that supports route selection policy initiation for a non-default subscription in accordance with aspects of the present disclosure.
  • FIGs. 5 and 6 show block diagrams of devices that support route selection policy initiation for a non-default subscription in accordance with aspects of the present disclosure.
  • FIG. 7 shows a block diagram of a communications manager that supports route selection policy initiation for a non-default subscription in accordance with aspects of the present disclosure.
  • FIG. 8 shows a diagram of a system including a device that supports route selection policy initiation for a non-default subscription in accordance with aspects of the present disclosure.
  • FIGs. 9 through 12 show flowcharts illustrating methods that support route selection policy initiation for a non-default subscription in accordance with aspects of the present disclosure.
  • a user equipment may be a dual-subscription dual-standby (DSDS) UE that is configured to support multiple subscriptions.
  • the multiple subscriptions may, at least in some instances, correspond to different subscriber identify modules (SIMs) of the UE.
  • SIMs subscriber identify modules
  • the UE may include a first subscription associated with a first network and a first SIM (e.g., a default subscription for the UE) and a second subscription associated with a second network and a second SIM (e.g., a non-default subscription for the UE) .
  • the UE may communicate with one or more base stations using a network connection associated with the first subscription or the second subscription.
  • the first subscription and second subscription may communicate with respective base stations using different radio access technologies (RATs) .
  • RATs radio access technologies
  • the first subscription may be associated with a first RAT (e.g., NR, LTE, wireless local area network (WLAN) , NB-IoT) and the second subscription may operate using a same or different RAT.
  • a first RAT e.g., NR, LTE, wireless local area network (WLAN) , NB-IoT
  • WLAN wireless local area network
  • NB-IoT wireless local area network
  • the UE may evaluate a route selection policy such as a UE route selection policy (URSP) associated with a subscription (e.g., the first subscription or the second subscription) .
  • URSP UE route selection policy
  • the UE may identify a first URSP associated the first subscription (e.g., the default subscription) and the UE may use the first URSP associated with the default subscription to govern access policies for communicating with the network.
  • an application of the UE may request to establish a connection with the network, and the application may indicate an access preference rule to use when establishing the connection. The UE may compare the access preference rule of the application to the first URSP or the second URSP to find a matching rule.
  • the URSP associated with the second subscription may be outdated or otherwise invalid or absent.
  • the UE may establish the data connection using the first subscription and the first URSP, even in cases where the second network associated with the second subscription (and a second URSP) would provide a higher quality of service for the application at the UE.
  • the UE may implement methods to receive the URSP associated with the second (e.g., non-default) subscription at an earlier time.
  • the UE may evaluate valid URSPs for both the first subscription and the second subscription effectively, and may determine which subscription to implement for network connection.
  • the UE may register with the network associated with the second subscription at power-on of the UE (e.g., before registering with the first (default) subscription) .
  • the UE may register with the network associated with the first subscription (e.g., the default subscription) at power-on.
  • the UE may receive the URSP for the network associated with the first subscription.
  • the UE may then register with the network associated with the second subscription, and may request a URSP associated with the second subscription
  • the UE may start a timer configured for a threshold period of time (e.g., 10 seconds) .
  • the threshold period of time may correspond to an amount of time that the UE remains registered with the network associated with the second subscription in order to receive the URSP associated with the second subscription.
  • the UE may de-register with the network associated with the second subscription.
  • aspects of the disclosure are initially described in the context of wireless communications systems. Aspects of the disclosure are then described in the context of process flows detailing communications between a UE and a wireless network. Aspects of the disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flowcharts that relate to route selection policy initiation for a non-default subscription.
  • FIG. 1 illustrates an example of a wireless communications system 100 that supports route selection policy initiation for a non-default subscription in accordance with aspects of the present disclosure.
  • the wireless communications system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130.
  • the wireless communications system 100 may be a Long Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, an LTE-A Pro network, or a New Radio (NR) network.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • LTE-A Pro LTE-A Pro
  • NR New Radio
  • the wireless communications system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission critical) communications, low latency communications, communications with low-cost and low-complexity devices, or any combination thereof.
  • ultra-reliable e.g., mission critical
  • the base stations 105 may be dispersed throughout a geographic area to form the wireless communications system 100 and may be devices in different forms or having different capabilities.
  • the base stations 105 and the UEs 115 may wirelessly communicate via one or more communication links 125.
  • Each base station 105 may provide a coverage area 110 over which the UEs 115 and the base station 105 may establish one or more communication links 125.
  • the coverage area 110 may be an example of a geographic area over which a base station 105 and a UE 115 may support the communication of signals according to one or more radio access technologies.
  • the UEs 115 may be dispersed throughout a coverage area 110 of the wireless communications system 100, and each UE 115 may be stationary, or mobile, or both at different times.
  • the UEs 115 may be devices in different forms or having different capabilities. Some example UEs 115 are illustrated in FIG. 1.
  • the UEs 115 described herein may be able to communicate with various types of devices, such as other UEs 115, the base stations 105, or network equipment (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network equipment) , as shown in FIG. 1.
  • network equipment e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network equipment
  • the base stations 105 may communicate with the core network 130, or with one another, or both.
  • the base stations 105 may interface with the core network 130 through one or more backhaul links 120 (e.g., via an S1, N2, N3, or other interface) .
  • the base stations 105 may communicate with one another over the backhaul links 120 (e.g., via an X2, Xn, or other interface) either directly (e.g., directly between base stations 105) , or indirectly (e.g., via core network 130) , or both.
  • the backhaul links 120 may be or include one or more wireless links.
  • One or more of the base stations 105 described herein may include or may be referred to by a person having ordinary skill in the art as a base transceiver station, a radio base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB) , a next-generation NodeB or a giga-NodeB (either of which may be referred to as a gNB) , a Home NodeB, a Home eNodeB, or other suitable terminology.
  • a base transceiver station a radio base station
  • an access point a radio transceiver
  • a NodeB an eNodeB (eNB)
  • eNB eNodeB
  • a next-generation NodeB or a giga-NodeB either of which may be referred to as a gNB
  • gNB giga-NodeB
  • a UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where the “device” may also be referred to as a unit, a station, a terminal, or a client, among other examples.
  • a UE 115 may also include or may be referred to as a personal electronic device such as a cellular phone, a personal digital assistant (PDA) , a tablet computer, a laptop computer, or a personal computer.
  • PDA personal digital assistant
  • a UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communications (MTC) device, among other examples, which may be implemented in various objects such as appliances, or vehicles, meters, among other examples.
  • WLL wireless local loop
  • IoT Internet of Things
  • IoE Internet of Everything
  • MTC machine type communications
  • the UEs 115 described herein may be able to communicate with various types of devices, such as other UEs 115 that may sometimes act as relays as well as the base stations 105 and the network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among other examples, as shown in FIG. 1.
  • devices such as other UEs 115 that may sometimes act as relays as well as the base stations 105 and the network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among other examples, as shown in FIG. 1.
  • the UEs 115 and the base stations 105 may wirelessly communicate with one another via one or more communication links 125 over one or more carriers.
  • the term “carrier” may refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting the communication links 125.
  • a carrier used for a communication link 125 may include a portion of a radio frequency spectrum band (e.g., a bandwidth part (BWP) ) that is operated according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR) .
  • BWP bandwidth part
  • Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information) , control signaling that coordinates operation for the carrier, user data, or other signaling.
  • the wireless communications system 100 may support communication with a UE 115 using carrier aggregation or multi-carrier operation.
  • a UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration.
  • Carrier aggregation may be used with both frequency division duplexing (FDD) and time division duplexing (TDD) component carriers.
  • FDD frequency division duplexing
  • TDD time division duplexing
  • a carrier may also have acquisition signaling or control signaling that coordinates operations for other carriers.
  • a carrier may be associated with a frequency channel (e.g., an evolved universal mobile telecommunication system terrestrial radio access (E-UTRA) absolute radio frequency channel number (EARFCN) ) and may be positioned according to a channel raster for discovery by the UEs 115.
  • E-UTRA evolved universal mobile telecommunication system terrestrial radio access
  • a carrier may be operated in a standalone mode where initial acquisition and connection may be conducted by the UEs 115 via the carrier, or the carrier may be operated in a non-standalone mode where a connection is anchored using a different carrier (e.g., of the same or a different radio access technology) .
  • the communication links 125 shown in the wireless communications system 100 may include uplink transmissions from a UE 115 to a base station 105, or downlink transmissions from a base station 105 to a UE 115.
  • Carriers may carry downlink or uplink communications (e.g., in an FDD mode) or may be configured to carry downlink and uplink communications (e.g., in a TDD mode) .
  • a carrier may be associated with a particular bandwidth of the radio frequency spectrum, and in some examples the carrier bandwidth may be referred to as a “system bandwidth” of the carrier or the wireless communications system 100.
  • the carrier bandwidth may be one of a number of determined bandwidths for carriers of a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz) ) .
  • Devices of the wireless communications system 100 e.g., the base stations 105, the UEs 115, or both
  • the wireless communications system 100 may include base stations 105 or UEs 115 that support simultaneous communications via carriers associated with multiple carrier bandwidths.
  • each served UE 115 may be configured for operating over portions (e.g., a sub-band, a BWP) or all of a carrier bandwidth.
  • Signal waveforms transmitted over a carrier may be made up of multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM) ) .
  • MCM multi-carrier modulation
  • OFDM orthogonal frequency division multiplexing
  • DFT-S-OFDM discrete Fourier transform spread OFDM
  • a resource element may consist of one symbol period (e.g., a duration of one modulation symbol) and one subcarrier, where the symbol period and subcarrier spacing are inversely related.
  • the number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both) .
  • a wireless communications resource may refer to a combination of a radio frequency spectrum resource, a time resource, and a spatial resource (e.g., spatial layers or beams) , and the use of multiple spatial layers may further increase the data rate or data integrity for communications with a UE 115.
  • One or more numerologies for a carrier may be supported, where a numerology may include a subcarrier spacing ( ⁇ f) and a cyclic prefix.
  • a carrier may be divided into one or more BWPs having the same or different numerologies.
  • a UE 115 may be configured with multiple BWPs.
  • a single BWP for a carrier may be active at a given time and communications for the UE 115 may be restricted to one or more active BWPs.
  • Time intervals of a communications resource may be organized according to radio frames each having a specified duration (e.g., 10 milliseconds (ms) ) .
  • Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023) .
  • SFN system frame number
  • Each frame may include multiple consecutively numbered subframes or slots, and each subframe or slot may have the same duration.
  • a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into a number of slots.
  • each frame may include a variable number of slots, and the number of slots may depend on subcarrier spacing.
  • Each slot may include a number of symbol periods (e.g., depending on the length of the cyclic prefix prepended to each symbol period) .
  • a slot may further be divided into multiple mini-slots containing one or more symbols. Excluding the cyclic prefix, each symbol period may contain one or more (e.g., N f ) sampling periods. The duration of a symbol period may depend on the subcarrier spacing or frequency band of operation.
  • a subframe, a slot, a mini-slot, or a symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communications system 100 and may be referred to as a transmission time interval (TTI) .
  • TTI duration e.g., the number of symbol periods in a TTI
  • the smallest scheduling unit of the wireless communications system 100 may be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs) ) .
  • Physical channels may be multiplexed on a carrier according to various techniques.
  • a physical control channel and a physical data channel may be multiplexed on a downlink carrier, for example, using one or more of time division multiplexing (TDM) techniques, frequency division multiplexing (FDM) techniques, or hybrid TDM-FDM techniques.
  • a control region e.g., a control resource set (CORESET)
  • CORESET control resource set
  • a control region for a physical control channel may be defined by a number of symbol periods and may extend across the system bandwidth or a subset of the system bandwidth of the carrier.
  • One or more control regions (e.g., CORESETs) may be configured for a set of the UEs 115.
  • one or more of the UEs 115 may monitor or search control regions for control information according to one or more search space sets, and each search space set may include one or multiple control channel candidates in one or more aggregation levels arranged in a cascaded manner.
  • An aggregation level for a control channel candidate may refer to a number of control channel resources (e.g., control channel elements (CCEs) ) associated with encoded information for a control information format having a given payload size.
  • Search space sets may include common search space sets configured for sending control information to multiple UEs 115 and UE-specific search space sets for sending control information to a specific UE 115.
  • Each base station 105 may provide communication coverage via one or more cells, for example a macro cell, a small cell, a hot spot, or other types of cells, or any combination thereof.
  • the term “cell” may refer to a logical communication entity used for communication with a base station 105 (e.g., over a carrier) and may be associated with an identifier for distinguishing neighboring cells (e.g., a physical cell identifier (PCID) , a virtual cell identifier (VCID) , or others) .
  • a cell may also refer to a geographic coverage area 110 or a portion of a geographic coverage area 110 (e.g., a sector) over which the logical communication entity operates.
  • Such cells may range from smaller areas (e.g., a structure, a subset of structure) to larger areas depending on various factors such as the capabilities of the base station 105.
  • a cell may be or include a building, a subset of a building, or exterior spaces between or overlapping with geographic coverage areas 110, among other examples.
  • a macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by the UEs 115 with service subscriptions with the network provider supporting the macro cell.
  • a small cell may be associated with a lower-powered base station 105, as compared with a macro cell, and a small cell may operate in the same or different (e.g., licensed, unlicensed) frequency bands as macro cells.
  • Small cells may provide unrestricted access to the UEs 115 with service subscriptions with the network provider or may provide restricted access to the UEs 115 having an association with the small cell (e.g., the UEs 115 in a closed subscriber group (CSG) , the UEs 115 associated with users in a home or office) .
  • a base station 105 may support one or multiple cells and may also support communications over the one or more cells using one or multiple component carriers.
  • a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT) , enhanced mobile broadband (eMBB) ) that may provide access for different types of devices.
  • protocol types e.g., MTC, narrowband IoT (NB-IoT) , enhanced mobile broadband (eMBB)
  • NB-IoT narrowband IoT
  • eMBB enhanced mobile broadband
  • a base station 105 may be movable and therefore provide communication coverage for a moving geographic coverage area 110.
  • different geographic coverage areas 110 associated with different technologies may overlap, but the different geographic coverage areas 110 may be supported by the same base station 105.
  • the overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105.
  • the wireless communications system 100 may include, for example, a heterogeneous network in which different types of the base stations 105 provide coverage for various geographic coverage areas 110 using the same or different radio access technologies.
  • the wireless communications system 100 may support synchronous or asynchronous operation.
  • the base stations 105 may have similar frame timings, and transmissions from different base stations 105 may be approximately aligned in time.
  • the base stations 105 may have different frame timings, and transmissions from different base stations 105 may, in some examples, not be aligned in time.
  • the techniques described herein may be used for either synchronous or asynchronous operations.
  • Some UEs 115 may be low cost or low complexity devices and may provide for automated communication between machines (e.g., via Machine-to-Machine (M2M) communication) .
  • M2M communication or MTC may refer to data communication technologies that allow devices to communicate with one another or a base station 105 without human intervention.
  • M2M communication or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application program that makes use of the information or presents the information to humans interacting with the application program.
  • Some UEs 115 may be designed to collect information or enable automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based business charging.
  • Some UEs 115 may be configured to employ operating modes that reduce power consumption, such as half-duplex communications (e.g., a mode that supports one-way communication via transmission or reception, but not transmission and reception simultaneously) .
  • half-duplex communications may be performed at a reduced peak rate.
  • Other power conservation techniques for the UEs 115 include entering a power saving deep sleep mode when not engaging in active communications, operating over a limited bandwidth (e.g., according to narrowband communications) , or a combination of these techniques.
  • some UEs 115 may be configured for operation using a narrowband protocol type that is associated with a defined portion or range (e.g., set of subcarriers or resource blocks (RBs) ) within a carrier, within a guard-band of a carrier, or outside of a carrier.
  • a narrowband protocol type that is associated with a defined portion or range (e.g., set of subcarriers or resource blocks (RBs) ) within a carrier, within a guard-band of a carrier, or outside of a carrier.
  • the wireless communications system 100 may be configured to support ultra-reliable communications or low-latency communications, or various combinations thereof.
  • the wireless communications system 100 may be configured to support ultra-reliable low-latency communications (URLLC) or mission critical communications.
  • the UEs 115 may be designed to support ultra-reliable, low-latency, or critical functions (e.g., mission critical functions) .
  • Ultra-reliable communications may include private communication or group communication and may be supported by one or more mission critical services such as mission critical push-to-talk (MCPTT) , mission critical video (MCVideo) , or mission critical data (MCData) .
  • MCPTT mission critical push-to-talk
  • MCVideo mission critical video
  • MCData mission critical data
  • Support for mission critical functions may include prioritization of services, and mission critical services may be used for public safety or general commercial applications.
  • the terms ultra-reliable, low-latency, mission critical, and ultra-reliable low-latency may be used interchangeably herein.
  • a UE 115 may also be able to communicate directly with other UEs 115 over a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol) .
  • D2D device-to-device
  • P2P peer-to-peer
  • One or more UEs 115 utilizing D2D communications may be within the geographic coverage area 110 of a base station 105.
  • Other UEs 115 in such a group may be outside the geographic coverage area 110 of a base station 105 or be otherwise unable to receive transmissions from a base station 105.
  • groups of the UEs 115 communicating via D2D communications may utilize a one-to-many (1: M) system in which each UE 115 transmits to every other UE 115 in the group.
  • a base station 105 facilitates the scheduling of resources for D2D communications. In other cases, D2D communications are carried out between the UEs 115 without the involvement of a base station 105.
  • the D2D communication link 135 may be an example of a communication channel, such as a sidelink communication channel, between vehicles (e.g., UEs 115) .
  • vehicles may communicate using vehicle-to-everything (V2X) communications, vehicle-to-vehicle (V2V) communications, or some combination of these.
  • V2X vehicle-to-everything
  • V2V vehicle-to-vehicle
  • a vehicle may signal information related to traffic conditions, signal scheduling, weather, safety, emergencies, or any other information relevant to a V2X system.
  • vehicles in a V2X system may communicate with roadside infrastructure, such as roadside units, or with the network via one or more network nodes (e.g., base stations 105) using vehicle-to-network (V2N) communications, or with both.
  • V2N vehicle-to-network
  • the core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions.
  • the core network 130 may be an evolved packet core (EPC) or 5G core (5GC) , which may include at least one control plane entity that manages access and mobility (e.g., a mobility management entity (MME) , an access and mobility management function (AMF) ) and at least one user plane entity that routes packets or interconnects to external networks (e.g., a serving gateway (S-GW) , a Packet Data Network (PDN) gateway (P-GW) , or a user plane function (UPF) ) .
  • EPC evolved packet core
  • 5GC 5G core
  • MME mobility management entity
  • AMF access and mobility management function
  • S-GW serving gateway
  • PDN Packet Data Network gateway
  • UPF user plane function
  • the control plane entity may manage non-access stratum (NAS) functions such as mobility, authentication, and bearer management for the UEs 115 served by the base stations 105 associated with the core network 130.
  • NAS non-access stratum
  • User IP packets may be transferred through the user plane entity, which may provide IP address allocation as well as other functions.
  • the user plane entity may be connected to the network operators IP services 150.
  • the operators IP services 150 may include access to the Internet, Intranet (s) , an IP Multimedia Subsystem (IMS) , or a Packet-Switched Streaming Service.
  • Some of the network devices may include subcomponents such as an access network entity 140, which may be an example of an access node controller (ANC) .
  • Each access network entity 140 may communicate with the UEs 115 through one or more other access network transmission entities 145, which may be referred to as radio heads, smart radio heads, or transmission/reception points (TRPs) .
  • Each access network transmission entity 145 may include one or more antenna panels.
  • various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio heads and ANCs) or consolidated into a single network device (e.g., a base station 105) .
  • the wireless communications system 100 may operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz) .
  • the region from 300 MHz to 3 GHz is known as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from approximately one decimeter to one meter in length.
  • UHF waves may be blocked or redirected by buildings and environmental features, but the waves may penetrate structures sufficiently for a macro cell to provide service to the UEs 115 located indoors.
  • the transmission of UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than 100 kilometers) compared to transmission using the smaller frequencies and longer waves of the high frequency (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.
  • HF high frequency
  • VHF very high frequency
  • the wireless communications system 100 may also operate in a super high frequency (SHF) region using frequency bands from 3 GHz to 30 GHz, also known as the centimeter band, or in an extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz) , also known as the millimeter band.
  • SHF super high frequency
  • EHF extremely high frequency
  • the wireless communications system 100 may support millimeter wave (mmW) communications between the UEs 115 and the base stations 105, and EHF antennas of the respective devices may be smaller and more closely spaced than UHF antennas. In some examples, this may facilitate use of antenna arrays within a device.
  • mmW millimeter wave
  • the propagation of EHF transmissions may be subject to even greater atmospheric attenuation and shorter range than SHF or UHF transmissions.
  • the techniques disclosed herein may be employed across transmissions that use one or more different frequency regions, and designated use of bands across these frequency regions may differ by country or regulating body.
  • the wireless communications system 100 may utilize both licensed and unlicensed radio frequency spectrum bands.
  • the wireless communications system 100 may employ License Assisted Access (LAA) , LTE-Unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band such as the 5 GHz industrial, scientific, and medical (ISM) band.
  • LAA License Assisted Access
  • LTE-U LTE-Unlicensed
  • NR NR technology
  • an unlicensed band such as the 5 GHz industrial, scientific, and medical (ISM) band.
  • devices such as the base stations 105 and the UEs 115 may employ carrier sensing for collision detection and avoidance.
  • operations in unlicensed bands may be based on a carrier aggregation configuration in conjunction with component carriers operating in a licensed band (e.g., LAA) .
  • Operations in unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among other examples.
  • a base station 105 or a UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming.
  • the antennas of a base station 105 or a UE 115 may be located within one or more antenna arrays or antenna panels, which may support MIMO operations or transmit or receive beamforming.
  • one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower.
  • antennas or antenna arrays associated with a base station 105 may be located in diverse geographic locations.
  • a base station 105 may have an antenna array with a number of rows and columns of antenna ports that the base station 105 may use to support beamforming of communications with a UE 115.
  • a UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations.
  • an antenna panel may support radio frequency beamforming for a signal transmitted via an antenna port.
  • the base stations 105 or the UEs 115 may use MIMO communications to exploit multipath signal propagation and increase the spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such techniques may be referred to as spatial multiplexing.
  • the multiple signals may, for example, be transmitted by the transmitting device via different antennas or different combinations of antennas. Likewise, the multiple signals may be received by the receiving device via different antennas or different combinations of antennas.
  • Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords) .
  • Different spatial layers may be associated with different antenna ports used for channel measurement and reporting.
  • MIMO techniques include single-user MIMO (SU-MIMO) , where multiple spatial layers are transmitted to the same receiving device, and multiple-user MIMO (MU-MIMO) , where multiple spatial layers are transmitted to multiple devices.
  • SU-MIMO single-user MIMO
  • Beamforming which may also be referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., a base station 105, a UE 115) to shape or steer an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device.
  • Beamforming may be achieved by combining the signals communicated via antenna elements of an antenna array such that some signals propagating at particular orientations with respect to an antenna array experience constructive interference while others experience destructive interference.
  • the adjustment of signals communicated via the antenna elements may include a transmitting device or a receiving device applying amplitude offsets, phase offsets, or both to signals carried via the antenna elements associated with the device.
  • the adjustments associated with each of the antenna elements may be defined by a beamforming weight set associated with a particular orientation (e.g., with respect to the antenna array of the transmitting device or receiving device, or with respect to some other orientation) .
  • a base station 105 or a UE 115 may use beam sweeping techniques as part of beam forming operations.
  • a base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to conduct beamforming operations for directional communications with a UE 115.
  • Some signals e.g., synchronization signals, reference signals, beam selection signals, or other control signals
  • the base station 105 may transmit a signal according to different beamforming weight sets associated with different directions of transmission.
  • Transmissions in different beam directions may be used to identify (e.g., by a transmitting device, such as a base station 105, or by a receiving device, such as a UE 115) a beam direction for later transmission or reception by the base station 105.
  • a transmitting device such as a base station 105
  • a receiving device such as a UE 115
  • Some signals may be transmitted by a base station 105 in a single beam direction (e.g., a direction associated with the receiving device, such as a UE 115) .
  • the beam direction associated with transmissions along a single beam direction may be determined based on a signal that was transmitted in one or more beam directions.
  • a UE 115 may receive one or more of the signals transmitted by the base station 105 in different directions and may report to the base station 105 an indication of the signal that the UE 115 received with a highest signal quality or an otherwise acceptable signal quality.
  • transmissions by a device may be performed using multiple beam directions, and the device may use a combination of digital precoding or radio frequency beamforming to generate a combined beam for transmission (e.g., from a base station 105 to a UE 115) .
  • the UE 115 may report feedback that indicates precoding weights for one or more beam directions, and the feedback may correspond to a configured number of beams across a system bandwidth or one or more sub-bands.
  • the base station 105 may transmit a reference signal (e.g., a cell-specific reference signal (CRS) , a channel state information reference signal (CSI-RS) ) , which may be precoded or unprecoded.
  • a reference signal e.g., a cell-specific reference signal (CRS) , a channel state information reference signal (CSI-RS)
  • CRS cell-specific reference signal
  • CSI-RS channel state information reference signal
  • the UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook) .
  • PMI precoding matrix indicator
  • codebook-based feedback e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook
  • a UE 115 may employ similar techniques for transmitting signals multiple times in different directions (e.g., for identifying a beam direction for subsequent transmission or reception by the UE 115) or for transmitting a signal in a single direction (e.g., for transmitting data to a receiving device) .
  • a receiving device may try multiple receive configurations (e.g., directional listening) when receiving various signals from the base station 105, such as synchronization signals, reference signals, beam selection signals, or other control signals.
  • receive configurations e.g., directional listening
  • a receiving device may try multiple receive directions by receiving via different antenna subarrays, by processing received signals according to different antenna subarrays, by receiving according to different receive beamforming weight sets (e.g., different directional listening weight sets) applied to signals received at multiple antenna elements of an antenna array, or by processing received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as “listening” according to different receive configurations or receive directions.
  • receive beamforming weight sets e.g., different directional listening weight sets
  • a receiving device may use a single receive configuration to receive along a single beam direction (e.g., when receiving a data signal) .
  • the single receive configuration may be aligned in a beam direction determined based on listening according to different receive configuration directions (e.g., a beam direction determined to have a highest signal strength, highest signal-to-noise ratio (SNR) , or otherwise acceptable signal quality based on listening according to multiple beam directions) .
  • SNR signal-to-noise ratio
  • the wireless communications system 100 may be a packet-based network that operates according to a layered protocol stack.
  • communications at the bearer or Packet Data Convergence Protocol (PDCP) layer may be IP-based.
  • a Radio Link Control (RLC) layer may perform packet segmentation and reassembly to communicate over logical channels.
  • RLC Radio Link Control
  • a Medium Access Control (MAC) layer may perform priority handling and multiplexing of logical channels into transport channels.
  • the MAC layer may also use error detection techniques, error correction techniques, or both to support retransmissions at the MAC layer to improve link efficiency.
  • the Radio Resource Control (RRC) protocol layer may provide establishment, configuration, and maintenance of an RRC connection between a UE 115 and a base station 105 or a core network 130 supporting radio bearers for user plane data.
  • RRC Radio Resource Control
  • transport channels may be mapped to physical channels.
  • the UEs 115 and the base stations 105 may support retransmissions of data to increase the likelihood that data is received successfully.
  • Hybrid automatic repeat request (HARQ) feedback is one technique for increasing the likelihood that data is received correctly over a communication link 125.
  • HARQ may include a combination of error detection (e.g., using a cyclic redundancy check (CRC) ) , forward error correction (FEC) , and retransmission (e.g., automatic repeat request (ARQ) ) .
  • FEC forward error correction
  • ARQ automatic repeat request
  • HARQ may improve throughput at the MAC layer in poor radio conditions (e.g., low signal-to-noise conditions) .
  • a device may support same-slot HARQ feedback, where the device may provide HARQ feedback in a specific slot for data received in a previous symbol in the slot. In other cases, the device may provide HARQ feedback in a subsequent slot, or according to some other time interval.
  • a UE 115 may be an example of a DSDS UE that is configured to support multiple subscriptions corresponding to different networks or different subscriber identify modules (SIMs) of the UE 115.
  • the UE 115 may include a first subscription associated with a first network or a first SIM (e.g., a default subscription for the UE 115) and a second subscription associated with a second network or a second SIM (e.g., a non-default subscription for the UE 115) .
  • the UE 115 may communicate with one or more base stations 105 using a network connection associated with the first subscription or second subscription.
  • the first subscription and second subscription may be associated with different RATs or network connections (e.g., NR, LTE, wireless local area network (WLAN) , NB-IoT) .
  • the first subscription and the second subscription may be associated with different networks of the same RAT.
  • the first subscription and the second subscription may be associated with the same network.
  • the UE 115 may evaluate a route selection policy such as URSP associated with the first subscription or the second subscription. For example, the UE 115 may identify a first URSP associated the first subscription (e.g., the default subscription) and the UE 115 may use the first URSP associated with the first subscription to communicate with the network.
  • an application of the UE 115 may indicate an access preference rule to use when requesting to establish a connection.
  • the UE 115 may compare the access preference rule of the application to the first URSP to find a matching rule.
  • a URSP associated with the second subscription (e.g., the non-default subscription) may be outdated or otherwise invalid.
  • the UE 115 may establish the data connection using the first subscription and the first URSP, even in cases where the second network associated with the second subscription (and a second URSP) would provide a higher quality of service.
  • the UE 115 may implement methods to receive the URSP associated with the second (e.g., non-default) subscription at an earlier time.
  • the UE 115 may register with network associated with the second subscription at power-on of the UE 115 (e.g., before registering with the first subscription) .
  • the UE 115 may register with the network associated with the first subscription (e.g., the default subscription) at power-on.
  • the UE 115 may receive the URSP for the network associated with the first subscription, and may activate an idle mode for the network connection associated first subscription upon receiving the URSP.
  • the UE 115 may register with the network associated with the second subscription, and may request a URSP associated with the second subscription.
  • FIG. 2 illustrates an example of a wireless communications system 200 that supports route selection policy initiation for a non-default subscription in accordance with aspects of the present disclosure.
  • wireless communications system 200 may implement aspects of wireless communication system 100.
  • the wireless communications system 200 may include a UE 115-a and base stations 105-a and 105-b, which may be respective examples of a UE 115 and base stations 105 as described with reference to FIG. 1.
  • the UE 115-a may support multiple subscriptions and may be referred to as a multi-SIM UE 115-a or a DSDS UE 115-a such that the UE 115-a may include more than one SIM.
  • the UE 115-a may include a first subscription 205 (e.g., the default subscription or a default data SIM (DDS) for the UE 115-a) and a second subscription 210 (e.g., the non-default subscription or the non-default data SIM (non-DDS) for the UE 115-a) .
  • the first subscription 205 may be associated with a first SIM of the UE 115-a and second subscription 210 may be associated with a second SIM of the UE 115-a.
  • the UE 115-a may communicate with base station 105-a via the first subscription 205 and may communicate with base station 105-b via the second subscription 210 based on the UE 115-a registering each subscription with the network.
  • first subscription 205 and second subscription 210 may communicate with the base stations 105-a and 105-b using the same radio access technology (RAT) or different RATs.
  • first subscription 205 may be associated with a first RAT (e.g., NR, LTE, wireless local area network (WLAN) , NB-IoT) and second subscription 210 may operate using a second RAT.
  • a first RAT e.g., NR, LTE, wireless local area network (WLAN) , NB-IoT
  • the first RAT and the second RAT may be the same RAT (e.g., both RATs may be NR RATs) .
  • the UE 115-a may communicate with base station 105-a using a first subscription link 215 and may communicate with base station 105-b using a second subscription link 220.
  • the first subscription link 215 may be associated with the first subscription 205 and the second subscription link 220 may be associated with the second subscription 210.
  • the first subscription link 215 and the second subscription link 220 may be examples of a communication link 125 as described with respect to FIG. 1.
  • the UE 115-a may evaluate a route selection policy such as a URSP associated with a subscription (e.g., the first subscription 205 or the second subscription 210) .
  • a route selection policy such as a URSP associated with a subscription
  • the UE 115-a may identify a first URSP associated the first subscription 205 (e.g., the default subscription) , and may identify a second URSP associated with the second subscription 210 (e.g., the non-default subscription) , and the UE 115-a may use the first or the second URSP associated with the default subscription or the non-default subscription to communicate with the network.
  • an application of the UE 115-a may request to establish a connection with the network, and the may indicate an access preference rule to use when establishing the connection.
  • the UE 115-a may compare the access preference rule of the application to the first URSP or the second URSP to find a matching rule.
  • the URSP associated with the second subscription 210 e.g., the non-default subscription
  • the UE 115-a may not be able to use the URSP associated with the second subscription 210, and instead may establish the data connection using the first subscription 205 and the first URSP, even in cases where the second network associated with the second subscription 210 and the second URSP would otherwise provide a higher quality of service. In other cases, the UE 115-a may wait to receive an updated URSP associated with the second subscription, which may increase communications latency and reduce application performance.
  • the UE 115-a may implement methods to receive the URSP associated with the second (e.g., non-default) subscription 210 at an earlier time, or during a time period allocated for receiving the URSP for the non-default subscription.
  • the UE 115-a may transmit a request message over the second subscription link 220 to register with network associated with the second subscription 210 at power-on of the UE 115-a.
  • the request message may in some cases include a request to receive a URSP associated with the second subscription 210.
  • the UE 115-a may register with the non-default subscription network immediately on power-on.
  • the UE 115-a may register with the non-default network associated with the second subscription 210 before registering with the default subscription network (e.g., the network associated with the first subscription 205) .
  • the UE 115-a may register with the network associated with the first subscription 205 (e.g., the default subscription) at power-on, and may receive the URSP for the network associated with the first subscription 205.
  • the UE 115-a may activate an idle mode for the network connection associated first subscription 205 upon receiving the URSP for the network associated with the first subscription 205.
  • the UE 115-a may request to register with the network associated with the second subscription 210, and may request a URSP associated with the second subscription 210.
  • communications using the first subscription e.g., emergency communications
  • the UE 115-a may start a timer configured for a threshold period of time.
  • the threshold period of time may correspond to an amount of time that the UE 115-a may remain registered with the network associated with the second subscription 210.
  • the timer may have a default duration of 10 seconds. In some other examples, the timer may have a value different from the default duration, and may be configurable by the UE 115-a. The UE 115-a may remain registered with the network associated with the second subscription 210 for up to the configured duration of the timer.
  • the UE 115-a may receive the URSP associated with the second subscription before the expiration of the timer. In such cases, the UE 115-a may disconnect with the network associated with the second subscription 210 upon receiving the URSP, or the UE 115-a may remain connected to the network for the remaining duration of the timer. In some other cases, the UE 115-a may not receive the URSP associated with the second subscription 210 before the expiration of the timer, and may disconnect with the network upon expiration of the timer.
  • the UE 115-a may improve service quality for one or more applications that request an access preference rule associated with the URSP of the second subscription 210.
  • the one or more applications may request to establish a data connection with base station 105-a or base station 105-b.
  • An application may transmit data to base stations 105-a or 105-b or receive data from base stations 105-a or 105-b via the data connection.
  • the application may additionally indicate an access preference rule to UE 115-a.
  • the application may indicate one or more traffic descriptors (e.g., IP descriptors, Non-IP descriptors, application identifiers, domain descriptors, a data network name (DNN) , connection capabilities) with associated precedence values or one or more route selection descriptors (e.g., session and service continuity mode, protocol data unit (PDU) session type, DNN, single-network slice selection assistance information (S-NSSAI) , access type preference, multi-access preference, non-seamless offload indication, time window, location criteria) with associated precedence values.
  • the access preference rule may indicate a preferential method for routing traffic associated with the application, and the UE 115-a may determine a matching rule of a URSP associated with the first subscription 205 or the second subscription 210 for communication.
  • an application of the UE 115-a may request a policy associated with an access preference rule, and the UE 115-a may check the URSP of the first subscription 205 for a matching policy. If the access preference rule does not match any of the policies of the URSP associated with the first subscription 205, the UE 115-a may then compare the access preference rule of the application to the updated URSP of the second subscription 210, and if a matching rule is found, the UE 115-a may establish a connection with the network via the network associated with second subscription 210. In some examples, establishing a connection with a network associated with the second subscription 210 may provide a higher quality of service (e.g., higher throughput) than the network associated with the first subscription 205.
  • a higher quality of service e.g., higher throughput
  • FIG. 3 illustrates an example of a process flow 300 that supports route selection policy initiation for a non-default subscription in accordance with aspects of the present disclosure.
  • process flow 300 may implement aspects of wireless communication system 100.
  • process flow 300 may implement aspects of wireless communications system as described with reference to FIGs. 1 and 2.
  • UE 115-b may be an example of the UEs 115 that are configured to operate in a dual subscription mode as described with respect to FIGs. 1 and 2.
  • UE 115-b may include a first subscription 205-a and a second subscription 210-a, which may be examples of first subscription 205 (e.g., a default subscription) and second subscription 210 (e.g., a non-default subscription) as described with reference to FIGs. 1 and 2.
  • UE 115-b may include a first SIM and a second SIM, where the first SIM is associated with first subscription 205-a and the second SIM is associated with second subscription 210-a.
  • UE 115-b may communicate with one or more networks 310 according to the first subscription 205-a and the second subscription 210-a.
  • the UE 115-b may evaluate a route selection policy such as a URSP associated with the first subscription 205-a or the second subscription 210-a. For example, the UE 115-b may identify a first URSP associated the first subscription 205-a, and a second URSP associated with the second subscription 210-a. The UE 115-b may use each route selection policy to gain network access via in accordance with the first subscription 205-a or the second subscription 210-a. In some cases, however, the URSP associated with the second subscription 210-a (e.g., the non-default subscription) may be outdated or otherwise invalid. Thus, the UE 115-b may implement a number of methods to receive the URSP associated with the second subscription 210-a for example, before the application 305 requests a data connection.
  • a route selection policy such as a URSP associated with the first subscription 205-a or the second subscription 210-a. For example, the UE 115-b may identify a first URSP
  • the UE 115-b may power on, and may check for the second route selection policy at the UE 115-b. For example, the UE 115-b may check for the second route selection policy by determining whether the second route selection policy is stored in the memory of the UE 115-b. In some examples, the UE 115-b may determine that the second route selection is absent from the UE 115-b, or that the second route selection policy is outdated or otherwise invalid.
  • the UE 115-b may transmit a registration request message at power on to the network associated with the second subscription 210-a (e.g., the non-default subscription) .
  • the UE 115-b may determine to register with the network associated with the second subscription based on determining that the URSP for the second subscription 210-a is absent from the UE 115-b.
  • the registration request message may include a request for a URSP associated with the second subscription 210-a, or may otherwise indicate that the URSP associated with the second subscription 210-a is absent from the UE 115-b.
  • the networks 310 may transmit a registration accept message to the UE 115-b, and the UE 115-b may register with the network associated with the second subscription 210-a (e.g., an NR5G network) .
  • the network may send the UE 115-b the URSP associated with the second subscription 210-a.
  • the network may send the URSP using a downlink non-access stratum (NAS) transport message (e.g., DL NAS transport, UE policy container: URSP) .
  • NAS downlink non-access stratum
  • the UE 115-b may begin a timer upon registering with one or more networks 310.
  • the UE 115-b may configure the timer for a threshold duration of time in which the UE 115-b may maintain an active connection with the network associated with the second subscription 210-a.
  • the threshold duration of time may be configurable by the UE 115-b (e.g., the duration of time may be changed or otherwise determined by the UE 115-b based on various factors) .
  • the timer may have a default duration of 10 seconds.
  • the UE 115-b may monitor for receipt of the second route selection policy (e.g., URSP) for the threshold duration of time configured by the timer.
  • the UE 115-b may receive the URSP associated with the second subscription 210-a before the expiration of the timer, and the UE 115-b may de-register with the network based on the receipt of the URSP.
  • the timer may expire before the UE 115-b receives the URSP associated with the second subscription 210-a, and the UE may de-register with the network without receiving the URSP based on the expiration of the timer.
  • the UE 115-b may de-register with the network associated with the second subscription 210-a (e.g., NR5G) and may register with another network (e.g., LTE, WCDMA, GSM, etc. ) upon deregistration.
  • the UE 115-b may perform a mode switch from a first RAT (e.g., an NR RAT) to a different (e.g., legacy) RAT after receiving the URSP associated with the first RAT.
  • the UE 115-b may also register with the network associated with the first subscription 205-a upon deregistration of the network associated with the second subscription 210-a.
  • the UE 115-b may transmit a registration request message to the network associated with the first subscription 205-a (e.g., default subscription) .
  • the UE 115-b may determine to register with the network associated with the first subscription based on receiving the URSP for the second subscription 210-a, or based on the expiration of a timer.
  • the registration request message may include a request for a URSP associated with the first subscription 205-a.
  • the network 310 may transmit a registration accept message to the UE 115-b, and the UE 115-b may register with the network associated with the first subscription 205-a.
  • the network may send the UE 115-b the URSP associated with the first subscription 205-a.
  • the network may send the URSP using a downlink non-access stratum (NAS) transport message (e.g., DL NAS transport, UE policy container: URSP) .
  • NAS downlink non-access stratum
  • the UE 115-b may implement procedure 1 to establish a PDU session with the network as requested by an application of the UE (e.g., application 305) .
  • application 305 may request to establish a data connection with a network. That is, application 305 may transmit an indication of the data connection request to the current default subscription of the UE 115-b (e.g., the first subscription 205-a) . Application 305 may additionally indicate an access preference rule to use when establishing the data connection (e.g., within the data connection request message) .
  • first subscription 205-a may determine that the first URSP lacks a policy that matches the access preference rule. For example, first subscription 205-a may compare parameters of the access preference rule (e.g., the traffic descriptors and route selection descriptors and associated precedence values) to parameters of the URSP policies (e.g., the precedence value, traffic descriptors, and route selection descriptors) and determine that the parameters of the access preference rule do not match parameters of a policy within the URSP.
  • parameters of the access preference rule e.g., the traffic descriptors and route selection descriptors and associated precedence values
  • parameters of the URSP policies e.g., the precedence value, traffic descriptors, and route selection descriptors
  • first subscription 205-a may communicate an indication to second subscription 210-a to evaluate policies of the second URSP for a policy that matches the access preference rule indicated by application 305. For example, first subscription 205-a may send a check policy request message to second subscription 210-a indicating for second subscription 210-a to evaluate policies of the second URSP for the matching policy. In some cases, the second subscription 210-a may determine that the second URSP includes a policy that matches the access preference rule.
  • first subscription 205-a may indicate that the second subscription 210-a includes the matching policy.
  • the application 305 may communicate a default data subscription (DDS) switch to the first subscription 205-a, which may in some cases indicate a switch from using the first subscription 205-a as a default subscription to using the second subscription 210-a as the default subscription.
  • DDS data subscription
  • the UE 115-b may perform a DDS switch associated with the first subscription 205-a and the second subscription 210-a for communication with the application 305.
  • the application 305 may receive a confirmation message of the DDS switch between the first subscription 205-a and the second subscription 210-a.
  • the DDS switch may include the application 305 sending a request to update the default subscription from first subscription 205-a to second subscription 210-a.
  • application 305 may transmit a data connection request with to the second subscription 210-a to establish the data connection via second subscription 210-a, and may establish a data connection with the default subscription second subscription 210-a.
  • UE 115-b may transmit a PDU establishment request message to the network 310 via the second subscription 210-a.
  • the PDU establishment request message may indicate to the network 310 the matching policy to use in establishing the data connection.
  • the network 310 may transmit a PDU establishment accept message to UE 115-b in response to the PDU establishment request via second subscription 210-a.
  • UE 115-b may establish the data connection for application 305 via second subscription 210-a using the matching policy.
  • FIG. 4 illustrates an example of a process flow 400 that supports route selection policy initiation for a non-default subscription in accordance with aspects of the present disclosure.
  • process flow 400 may implement aspects of wireless communication system 100.
  • process flow 400 may implement aspects of wireless communications system as described with reference to FIGs. 1–3.
  • UE 115-c may be an example of the UEs 115 that are configured to operate in a dual subscription mode as described with respect to FIGs. 1–3.
  • UE 115-c may include a first subscription 205-b and a second subscription 210-b, which may be examples of first subscription 205 and 205-a (e.g., a default subscription) and second subscription 210 and 210-a (e.g., a non-default subscription) as described with reference to FIGs. 1–3.
  • UE 115-c may include a first SIM and a second SIM, where the first SIM is associated with first subscription 205-b and the second SIM is associated with second subscription 210-b.
  • UE 115-c may communicate with one or more networks 410 associated with the first subscription 205-b and the second subscription 210-b.
  • the UE 115-c may evaluate a route selection policy such as a URSP associated with the first subscription 205-b or the second subscription 210-b. For example, the UE 115-c may identify a first URSP associated the first subscription 205-b, and a second URSP associated with the second subscription 210-b. The UE 115-c may use each route selection policy to gain network access via in accordance with the first subscription 205-b or the second subscription 210-b. In some cases, however, the URSP associated with the second subscription 210-b (e.g., the non-default subscription) may be outdated or otherwise invalid. Thus, the UE 115-c may implement a number of methods to receive the URSP associated with the second subscription 210-b for example, upon an activation of idle mode of the first subscription 205-b.
  • a route selection policy such as a URSP associated with the first subscription 205-b or the second subscription 210-b. For example, the UE 115-c may identify
  • the UE 115-c may power on, and may check for the second route selection policy at the UE 115-c. For example, the UE 115-c may check for the second route selection policy by determining whether the second route selection policy is stored in the memory of the UE 115-c. In some examples, the UE 115-c may determine that the second route selection is absent from the UE 115-c, or that the second route selection policy is outdated or otherwise invalid.
  • the UE 115-c may transmit a registration request message to the network associated with the first subscription 205-b (e.g., default subscription) .
  • the UE 115-c may determine to register with the network associated with the first subscription upon power-up of the UE 115-c.
  • the registration request message may include a request for a URSP associated with the first subscription 205-b.
  • the network 410 may transmit a registration accept message to the UE 115-b, and the UE 115-b may register with the network associated with the first subscription 205-b.
  • the network 410 may send the UE 115-c the URSP associated with the first subscription 205-b.
  • the network 410 may send the URSP using a downlink non-access stratum (NAS) transport message (e.g., DL NAS transport, UE policy container: URSP) .
  • NAS downlink non-access stratum
  • the UE 115-c may enter an idle mode in communications with the network associated with the first subscription 205-b. Based on determining that the UE 115-c is in idle mode with respect to the first subscription, the UE 115-c may determine to register with the network associate with the second subscription 210-b.
  • the UE 115-c may transmit a registration request message to the network associated with the second subscription 210-b (e.g., the non-default subscription) .
  • the UE 115-c may determine to register with the network associated with the second subscription based on determining that the URSP for the second subscription 210-b is absent from the UE 115-c.
  • the registration request message may include a request for a URSP associated with the second subscription 210-b, or may otherwise indicate that the URSP associated with the second subscription 210-b is absent from the UE 115-c.
  • the network 410 may transmit a registration accept message to the UE 115-c, and the UE 115-c may register with the network associated with the second subscription 210-b.
  • the network may send the UE 115-c the URSP associated with the second subscription 210-b.
  • the network may send the URSP using a downlink non-access stratum (NAS) transport message (e.g., DL NAS transport, UE policy container: URSP) .
  • NAS downlink non-access stratum
  • URSP e.g., DL NAS transport, UE policy container: URSP
  • the UE 115-c may begin a timer upon registering with the network 410.
  • the UE 115-c may configure the timer for a threshold duration of time in which the UE 115-c may maintain an active connection with the network associated with the second subscription 210-b.
  • the threshold duration of time may be configurable by the UE 115-c.
  • the timer may have a default duration of 10 seconds.
  • the UE 115-c may monitor for receipt of the second route selection policy (e.g., URSP) for the threshold duration of time configured by the timer.
  • the UE 115-c may receive the URSP associated with the second subscription 210-b before the expiration of the timer, and the UE 115-c may de-register with the network based on the receipt of the URSP.
  • the timer may expire before the UE 115-c receives the URSP associated with the second subscription 210-b, and the UE 115-c may de-register with the network without receiving the URSP based on the expiration of the timer.
  • the UE 115-c may implement procedure 1 to establish a PDU session with the network as requested by an application of the UE (e.g., application 405) .
  • application 405 may request to establish a data connection with a network. That is, application 405 may transmit an indication of the data connection request to the current default subscription of the UE 115-c (e.g., the first subscription 205-b) . Application 405 may additionally indicate an access preference rule to use when establishing the data connection (e.g., within the data connection request message) .
  • first subscription 205-b may determine that the first URSP lacks a policy that matches the access preference rule. For example, first subscription 205-b may compare parameters of the access preference rule (e.g., the traffic descriptors and route selection descriptors and associated precedence values) to parameters of the URSP policies (e.g., the precedence value, traffic descriptors, and route selection descriptors) and determine that the parameters of the access preference rule do not match parameters of a policy within the URSP.
  • parameters of the access preference rule e.g., the traffic descriptors and route selection descriptors and associated precedence values
  • parameters of the URSP policies e.g., the precedence value, traffic descriptors, and route selection descriptors
  • first subscription 205-b may communicate an indication to second subscription 210-b to evaluate policies of the second URSP for a policy that matches the access preference rule indicated by application 405. For example, first subscription 205-b may send a check policy request message to second subscription 210-b indicating for second subscription 210-b to evaluate policies of the second URSP for the matching policy. In some cases, the second subscription 210-b may determine that the second URSP includes a policy that matches the access preference rule.
  • first subscription 205-b may indicate that the second subscription 210-a includes the matching policy.
  • the application 405 may communicate a default data subscription (DDS) switch to the first subscription 205-b, which may in some cases indicate a switch from using the first subscription 205-b as a default subscription to using the second subscription 210-a as the default subscription.
  • DDS data subscription
  • the UE 115-c may perform a DDS switch associated with the first subscription 205-b and the second subscription 210-b for communication with the application 405.
  • the application 405 may receive a confirmation message of the DDS switch between the first subscription 205-b and the second subscription 210-b.
  • the DDS switch may include the application 405 sending a request to update the default subscription from first subscription 205-b to second subscription 210-b.
  • application 405 may transmit a data connection request with to the second subscription 210-b to establish the data connection via second subscription 210-b, and may establish a data connection with the default subscription second subscription 210-b.
  • UE 115-c may transmit a PDU establishment request message to the network 410 via the second subscription 210-b.
  • the PDU establishment request message may indicate to the network 410 the matching policy to use in establishing the data connection.
  • the network 310 may transmit a PDU establishment accept message to UE 115-c in response to the PDU establishment request via second subscription 210-b.
  • UE 115-c may establish the data connection for application 405 via second subscription 210-b using the matching policy.
  • FIG. 5 shows a block diagram 500 of a device 505 that supports route selection policy initiation for a non-default subscription in accordance with aspects of the present disclosure.
  • the device 505 may be an example of aspects of a UE 115 as described herein.
  • the device 505 may include a receiver 510, a communications manager 515, and a transmitter 520.
  • the device 505 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses) .
  • the receiver 510 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to route selection policy initiation for a non-default subscription, etc. ) . Information may be passed on to other components of the device 505.
  • the receiver 510 may be an example of aspects of the transceiver 820 described with reference to FIG. 8.
  • the receiver 510 may utilize a single antenna or a set of antennas.
  • the communications manager 515 may identify that the UE is configured to operate in a dual subscription mode that includes a first subscription and a second subscription, the first subscription being a default subscription, where network access via the first subscription is in accordance with a first route selection policy, and network access via the second subscription is in accordance with a second route selection policy, determine that the second route selection policy is absent from the UE, register with a network associated with the second subscription based on the second route selection policy being absent from the UE, and monitor for receipt of the second route selection policy while registered with the network associated with the second subscription.
  • the communications manager 515 may be an example of aspects of the communications manager 810 described herein.
  • the communications manager 515 may be implemented in hardware, code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communications manager 515, or its sub-components may be executed by a general-purpose processor, a DSP, an application-specific integrated circuit (ASIC) , a FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure.
  • code e.g., software or firmware
  • ASIC application-specific integrated circuit
  • the communications manager 515 may be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations by one or more physical components.
  • the communications manager 515, or its sub-components may be a separate and distinct component in accordance with various aspects of the present disclosure.
  • the communications manager 515, or its sub-components may be combined with one or more other hardware components, including but not limited to an input/output (I/O) component, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof in accordance with various aspects of the present disclosure.
  • I/O input/output
  • the transmitter 520 may transmit signals generated by other components of the device 505.
  • the transmitter 520 may be collocated with a receiver 510 in a transceiver module.
  • the transmitter 520 may be an example of aspects of the transceiver 820 described with reference to FIG. 8.
  • the transmitter 520 may utilize a single antenna or a set of antennas.
  • FIG. 6 shows a block diagram 600 of a device 605 that supports route selection policy initiation for a non-default subscription in accordance with aspects of the present disclosure.
  • the device 605 may be an example of aspects of a device 505, or a UE 115 as described herein.
  • the device 605 may include a receiver 610, a communications manager 615, and a transmitter 640.
  • the device 605 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses) .
  • the receiver 610 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to route selection policy initiation for a non-default subscription, etc. ) . Information may be passed on to other components of the device 605.
  • the receiver 610 may be an example of aspects of the transceiver 820 described with reference to FIG. 8.
  • the receiver 610 may utilize a single antenna or a set of antennas.
  • the communications manager 615 may be an example of aspects of the communications manager 515 as described herein.
  • the communications manager 615 may include a DDS subscription component 620, an URSP identification component 625, a network registration component 630, and a monitoring component 635.
  • the communications manager 615 may be an example of aspects of the communications manager 810 described herein.
  • the DDS subscription component 620 may identify that the UE is configured to operate in a dual subscription mode that includes a first subscription and a second subscription, the first subscription being a default subscription, where network access via the first subscription is in accordance with a first route selection policy, and network access via the second subscription is in accordance with a second route selection policy.
  • the URSP identification component 625 may determine that the second route selection policy is absent from the UE.
  • the network registration component 630 may register with a network associated with the second subscription based on the second route selection policy being absent from the UE.
  • the monitoring component 635 may monitor for receipt of the second route selection policy while registered with the network associated with the second subscription.
  • the transmitter 640 may transmit signals generated by other components of the device 605.
  • the transmitter 640 may be collocated with a receiver 610 in a transceiver module.
  • the transmitter 640 may be an example of aspects of the transceiver 820 described with reference to FIG. 8.
  • the transmitter 640 may utilize a single antenna or a set of antennas.
  • communications manager 615 may be implemented as an integrated circuit or chipset for a mobile device modem, and the receiver 610 and transmitter 620 may be implemented as analog components (e.g., amplifiers, filters, antennas, etc. ) coupled with the mobile device modem to enable wireless transmission and reception.
  • analog components e.g., amplifiers, filters, antennas, etc.
  • the communications manager 615 as described herein may be implemented to realize one or more potential advantages. Various implementations may enable. At least one implementation may enable the communications manager 615 to effectively request an updated route selection policy associated with a non-default subscription, The communications manager 615 may identify a route selection policy that is associated with an access preference rule for an application of the device 605, and may be able to identify a matching rule associated with the non-default subscription that enables improved service quality.
  • one or more processors of the device 605 may increase communications efficiency and overall quality of communications at the device 605.
  • the device 605 may be able to identify and select a preferred policy for communications based on receiving an updated route selection policy associated with the non-default subscription.
  • FIG. 7 shows a block diagram 700 of a communications manager 705 that supports route selection policy initiation for a non-default subscription in accordance with aspects of the present disclosure.
  • the communications manager 705 may be an example of aspects of a communications manager 515, a communications manager 615, or a communications manager 810 described herein.
  • the communications manager 705 may include a DDS subscription component 710, an URSP identification component 715, a network registration component 720, a monitoring component 725, an idle mode configuration component 730, a timer 735, a network connection component 740, an URSP receive component 745, and a network de-registration component 750.
  • Each of these modules may communicate, directly or indirectly, with one another (e.g., via one or more buses) .
  • the DDS subscription component 710 may identify that the UE is configured to operate in a dual subscription mode that includes a first subscription and a second subscription, the first subscription being a default subscription, where network access via the first subscription is in accordance with a first route selection policy, and network access via the second subscription is in accordance with a second route selection policy.
  • the URSP identification component 715 may determine that the second route selection policy is absent from the UE. In some examples, the URSP identification component 715 may determine that the second route selection policy is absent from the UE at power-on of the UE.
  • the second route selection policy includes a network access rule for a corresponding application of the UE, where the network access rule for the corresponding application of the UE is absent from the first route selection policy.
  • the network registration component 720 may register with a network associated with the second subscription based on the second route selection policy being absent from the UE. In some examples, the network registration component 720 may transmit a registration request message to the network associated with the second subscription. In some examples, the network registration component 720 may receive, from the network associated with the second subscription, a registration accept message in response to the registration request message. In some examples, the network registration component 720 may register with the network associated with the second subscription based on receipt of the registration accept message.
  • the network registration component 720 may register with the network associated with the second subscription at power-on of the UE based on absence of the second route selection policy being determined at power-on of the UE.
  • the network registration component 720 may register with a network associated with the first subscription at power-on of the UE.
  • the idle mode configuration component 730 may enter an idle mode in communications with the network associated with the first subscription.
  • the network registration component 720 may register with the network associated with the second subscription based on the UE being in idle mode with respect to the first subscription.
  • the idle mode configuration component 730 may detect that the UE is in idle mode with respect to the first subscription.
  • the monitoring component 725 may monitor for receipt of the second route selection policy while registered with the network associated with the second subscription. In some examples, the monitoring component 725 may monitor for receipt of the second route selection policy for the threshold duration of time.
  • the timer 735 may configure a timer for a threshold duration of time.
  • the threshold duration of time associated with the timer is configurable.
  • the threshold duration of time includes default time of 10 seconds.
  • the network connection component 740 may maintain an active connection with the network associated with the second subscription for the threshold duration of time.
  • the URSP receive component 745 may identify that the second route selection policy is not received during the threshold duration of time. In some examples, the URSP receive component 745 may identify that the second route selection policy is received before expiration of the timer.
  • the network de-registration component 750 may de-register with the network associated with the second subscription based on expiration of the timer. In some examples, the network de-registration component 750 may de-register with the network associated with the second subscription based on receipt of the second route selection policy.
  • FIG. 8 shows a diagram of a system 800 including a device 805 that supports route selection policy initiation for a non-default subscription in accordance with aspects of the present disclosure.
  • the device 805 may be an example of or include the components of device 505, device 605, or a UE 115 as described herein.
  • the device 805 may include components for bi-directional voice and data communications including components for transmitting and receiving communications, including a communications manager 810, an I/O controller 815, a transceiver 820, an antenna 825, memory 830, and a processor 840. These components may be in electronic communication via one or more buses (e.g., bus 845) .
  • buses e.g., bus 845
  • the communications manager 810 may identify that the UE is configured to operate in a dual subscription mode that includes a first subscription and a second subscription, the first subscription being a default subscription, where network access via the first subscription is in accordance with a first route selection policy, and network access via the second subscription is in accordance with a second route selection policy, determine that the second route selection policy is absent from the UE, register with a network associated with the second subscription based on the second route selection policy being absent from the UE, and monitor for receipt of the second route selection policy while registered with the network associated with the second subscription.
  • the I/O controller 815 may manage input and output signals for the device 805.
  • the I/O controller 815 may also manage peripherals not integrated into the device 805.
  • the I/O controller 815 may represent a physical connection or port to an external peripheral.
  • the I/O controller 815 may utilize an operating system such as or another known operating system.
  • the I/O controller 815 may represent or interact with a modem, a keyboard, a mouse, a touchscreen, or a similar device.
  • the I/O controller 815 may be implemented as part of a processor.
  • a user may interact with the device 805 via the I/O controller 815 or via hardware components controlled by the I/O controller 815.
  • the transceiver 820 may communicate bi-directionally, via one or more antennas, wired, or wireless links as described herein.
  • the transceiver 820 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver.
  • the transceiver 820 may also include a modem to modulate the packets and provide the modulated packets to the antennas for transmission, and to demodulate packets received from the antennas.
  • the wireless device may include a single antenna 825. However, in some cases the device may have more than one antenna 825, which may be capable of concurrently transmitting or receiving multiple wireless transmissions.
  • the memory 830 may include RAM and ROM.
  • the memory 830 may store computer-readable, computer-executable code 835 including instructions that, when executed, cause the processor to perform various functions described herein.
  • the memory 830 may contain, among other things, a BIOS which may control basic hardware or software operation such as the interaction with peripheral components or devices.
  • the processor 840 may include an intelligent hardware device, (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof) .
  • the processor 840 may be configured to operate a memory array using a memory controller.
  • a memory controller may be integrated into the processor 840.
  • the processor 840 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 830) to cause the device 805 to perform various functions (e.g., functions or tasks supporting route selection policy initiation for a non-default subscription) .
  • the code 835 may include instructions to implement aspects of the present disclosure, including instructions to support wireless communications.
  • the code 835 may be stored in a non-transitory computer-readable medium such as system memory or other type of memory.
  • the code 835 may not be directly executable by the processor 840 but may cause a computer (e.g., when compiled and executed) to perform functions described herein.
  • FIG. 9 shows a flowchart illustrating a method 900 that supports route selection policy initiation for a non-default subscription in accordance with aspects of the present disclosure.
  • the operations of method 900 may be implemented by a UE 115 or its components as described herein.
  • the operations of method 900 may be performed by a communications manager as described with reference to FIGs. 5 through 8.
  • a UE may execute a set of instructions to control the functional elements of the UE to perform the functions described herein.
  • a UE may perform aspects of the functions described herein using special-purpose hardware.
  • the UE may identify that the UE is configured to operate in a dual subscription mode that includes a first subscription and a second subscription, the first subscription being a default subscription, where network access via the first subscription is in accordance with a first route selection policy, and network access via the second subscription is in accordance with a second route selection policy.
  • the operations of 905 may be performed according to the methods described herein. In some examples, aspects of the operations of 905 may be performed by a DDS subscription component as described with reference to FIGs. 5 through 8.
  • the UE may determine that the second route selection policy is absent from the UE.
  • the operations of 910 may be performed according to the methods described herein. In some examples, aspects of the operations of 910 may be performed by an URSP identification component as described with reference to FIGs. 5 through 8.
  • the UE may register with a network associated with the second subscription based on the second route selection policy being absent from the UE.
  • the operations of 915 may be performed according to the methods described herein. In some examples, aspects of the operations of 915 may be performed by a network registration component as described with reference to FIGs. 5 through 8.
  • the UE may monitor for receipt of the second route selection policy while registered with the network associated with the second subscription.
  • the operations of 920 may be performed according to the methods described herein. In some examples, aspects of the operations of 920 may be performed by a monitoring component as described with reference to FIGs. 5 through 8.
  • FIG. 10 shows a flowchart illustrating a method 1000 that supports route selection policy initiation for a non-default subscription in accordance with aspects of the present disclosure.
  • the operations of method 1000 may be implemented by a UE 115 or its components as described herein.
  • the operations of method 1000 may be performed by a communications manager as described with reference to FIGs. 5 through 8.
  • a UE may execute a set of instructions to control the functional elements of the UE to perform the functions described herein.
  • a UE may perform aspects of the functions described herein using special-purpose hardware.
  • the UE may identify that the UE is configured to operate in a dual subscription mode that includes a first subscription and a second subscription, the first subscription being a default subscription, where network access via the first subscription is in accordance with a first route selection policy, and network access via the second subscription is in accordance with a second route selection policy.
  • the operations of 1005 may be performed according to the methods described herein. In some examples, aspects of the operations of 1005 may be performed by a DDS subscription component as described with reference to FIGs. 5 through 8.
  • the UE may register with a network associated with the first subscription at power-on of the UE.
  • the operations of 1010 may be performed according to the methods described herein. In some examples, aspects of the operations of 1010 may be performed by a network registration component as described with reference to FIGs. 5 through 8.
  • the UE may determine that the second route selection policy is absent from the UE.
  • the operations of 1015 may be performed according to the methods described herein. In some examples, aspects of the operations of 1015 may be performed by an URSP identification component as described with reference to FIGs. 5 through 8.
  • the UE may enter an idle mode in communications with the network associated with the first subscription.
  • the operations of 1020 may be performed according to the methods described herein. In some examples, aspects of the operations of 1020 may be performed by an idle mode configuration component as described with reference to FIGs. 5 through 8.
  • the UE may detect that the UE is in idle mode with respect to the first subscription.
  • the operations of 1025 may be performed according to the methods described herein. In some examples, aspects of the operations of 1025 may be performed by an idle mode configuration component as described with reference to FIGs. 5 through 8.
  • the UE may register with the network associated with the second subscription based on the UE being in idle mode with respect to the first subscription.
  • the operations of 1030 may be performed according to the methods described herein. In some examples, aspects of the operations of 1030 may be performed by a network registration component as described with reference to FIGs. 5 through 8.
  • the UE may register with a network associated with the second subscription based on the second route selection policy being absent from the UE.
  • the operations of 1035 may be performed according to the methods described herein. In some examples, aspects of the operations of 1035 may be performed by a network registration component as described with reference to FIGs. 5 through 8.
  • the UE may monitor for receipt of the second route selection policy while registered with the network associated with the second subscription.
  • the operations of 1040 may be performed according to the methods described herein. In some examples, aspects of the operations of 1040 may be performed by a monitoring component as described with reference to FIGs. 5 through 8.
  • FIG. 11 shows a flowchart illustrating a method 1100 that supports route selection policy initiation for a non-default subscription in accordance with aspects of the present disclosure.
  • the operations of method 1100 may be implemented by a UE 115 or its components as described herein.
  • the operations of method 1100 may be performed by a communications manager as described with reference to FIGs. 5 through 8.
  • a UE may execute a set of instructions to control the functional elements of the UE to perform the functions described herein.
  • a UE may perform aspects of the functions described herein using special-purpose hardware.
  • the UE may identify that the UE is configured to operate in a dual subscription mode that includes a first subscription and a second subscription, the first subscription being a default subscription, where network access via the first subscription is in accordance with a first route selection policy, and network access via the second subscription is in accordance with a second route selection policy.
  • the operations of 1105 may be performed according to the methods described herein. In some examples, aspects of the operations of 1105 may be performed by a DDS subscription component as described with reference to FIGs. 5 through 8.
  • the UE may determine that the second route selection policy is absent from the UE.
  • the operations of 1110 may be performed according to the methods described herein. In some examples, aspects of the operations of 1110 may be performed by an URSP identification component as described with reference to FIGs. 5 through 8.
  • the UE may determine that the second route selection policy is absent from the UE at power-on of the UE.
  • the operations of 1115 may be performed according to the methods described herein. In some examples, aspects of the operations of 1115 may be performed by an URSP identification component as described with reference to FIGs. 5 through 8.
  • the UE may register with the network associated with the second subscription at power-on of the UE based on absence of the second route selection policy being determined at power-on of the UE.
  • the operations of 1120 may be performed according to the methods described herein. In some examples, aspects of the operations of 1120 may be performed by a network registration component as described with reference to FIGs. 5 through 8.
  • the UE may register with a network associated with the second subscription based on the second route selection policy being absent from the UE.
  • the operations of 1125 may be performed according to the methods described herein. In some examples, aspects of the operations of 1125 may be performed by a network registration component as described with reference to FIGs. 5 through 8.
  • the UE may monitor for receipt of the second route selection policy while registered with the network associated with the second subscription.
  • the operations of 1130 may be performed according to the methods described herein. In some examples, aspects of the operations of 1130 may be performed by a monitoring component as described with reference to FIGs. 5 through 8.
  • FIG. 12 shows a flowchart illustrating a method 1200 that supports route selection policy initiation for a non-default subscription in accordance with aspects of the present disclosure.
  • the operations of method 1200 may be implemented by a UE 115 or its components as described herein.
  • the operations of method 1200 may be performed by a communications manager as described with reference to FIGs. 5 through 8.
  • a UE may execute a set of instructions to control the functional elements of the UE to perform the functions described herein.
  • a UE may perform aspects of the functions described herein using special-purpose hardware.
  • the UE may identify that the UE is configured to operate in a dual subscription mode that includes a first subscription and a second subscription, the first subscription being a default subscription, where network access via the first subscription is in accordance with a first route selection policy, and network access via the second subscription is in accordance with a second route selection policy.
  • the operations of 1205 may be performed according to the methods described herein. In some examples, aspects of the operations of 1205 may be performed by a DDS subscription component as described with reference to FIGs. 5 through 8.
  • the UE may determine that the second route selection policy is absent from the UE.
  • the operations of 1210 may be performed according to the methods described herein. In some examples, aspects of the operations of 1210 may be performed by an URSP identification component as described with reference to FIGs. 5 through 8.
  • the UE may register with a network associated with the second subscription based on the second route selection policy being absent from the UE.
  • the operations of 1215 may be performed according to the methods described herein. In some examples, aspects of the operations of 1215 may be performed by a network registration component as described with reference to FIGs. 5 through 8.
  • the UE may monitor for receipt of the second route selection policy while registered with the network associated with the second subscription.
  • the operations of 1220 may be performed according to the methods described herein. In some examples, aspects of the operations of 1220 may be performed by a monitoring component as described with reference to FIGs. 5 through 8.
  • the UE may configure a timer for a threshold duration of time.
  • the operations of 1225 may be performed according to the methods described herein. In some examples, aspects of the operations of 1225 may be performed by a timer as described with reference to FIGs. 5 through 8.
  • the UE may maintain an active connection with the network associated with the second subscription for the threshold duration of time.
  • the operations of 1230 may be performed according to the methods described herein. In some examples, aspects of the operations of 1230 may be performed by a network connection component as described with reference to FIGs. 5 through 8.
  • LTE, LTE-A, LTE-A Pro, or NR may be described for purposes of example, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein are applicable beyond LTE, LTE-A, LTE-A Pro, or NR networks.
  • the described techniques may be applicable to various other wireless communications systems such as Ultra Mobile Broadband (UMB) , Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20, Flash-OFDM, as well as other systems and radio technologies not explicitly mentioned herein.
  • UMB Ultra Mobile Broadband
  • IEEE Institute of Electrical and Electronics Engineers
  • Wi-Fi Institute of Electrical and Electronics Engineers
  • WiMAX IEEE 802.16
  • IEEE 802.20 Flash-OFDM
  • Information and signals described herein may be represented using any of a variety of different technologies and techniques.
  • data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
  • a general-purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller, or state machine.
  • a processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration) .
  • the functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope of the disclosure and appended claims. For example, due to the nature of software, functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.
  • Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special purpose computer.
  • non-transitory computer-readable media may include random-access memory (RAM) , read-only memory (ROM) , electrically erasable programmable ROM (EEPROM) , flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Also, any connection is properly termed a computer-readable medium.
  • RAM random-access memory
  • ROM read-only memory
  • EEPROM electrically erasable programmable ROM
  • flash memory compact disk (CD) ROM or other optical disk storage
  • CD compact disk
  • magnetic disk storage or other magnetic storage devices or any other non-transitory medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer,
  • Disk and disc include CD, laser disc, optical disc, digital versatile disc (DVD) , floppy disk and Blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

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

Abstract

L'invention concerne des procédés, des systèmes et des dispositifs pour des communications sans fil. Dans certains systèmes de communication sans fil, un équipement utilisateur (UE) peut être configuré pour fonctionner dans un mode d'abonnement double comportant un premier abonnement et un second abonnement. Le premier abonnement peut être un abonnement par défaut, et l'accès au réseau associé au premier abonnement peut être conforme à une première politique de sélection de route. Le second abonnement peut être un abonnement non par défaut, l'accès au réseau associé au second abonnement pouvant être conforme à une seconde politique de sélection de route. L'UE peut déterminer que la seconde politique de sélection de route est absente de l'UE, et peut s'enregistrer auprès d'un réseau associé au second abonnement sur la base de la détermination. L'UE peut surveiller la réception de la seconde politique de sélection de route associée au second abonnement pendant une période de temps seuil.
PCT/CN2020/095355 2020-06-10 2020-06-10 Initiation de politique de sélection de route pour un abonnement non par défaut Ceased WO2021248365A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
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WO2025166785A1 (fr) * 2024-02-08 2025-08-14 Oppo广东移动通信有限公司 Procédé de communication sans fil, dispositif terminal et dispositif de réseau central

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CN104995961A (zh) * 2013-03-29 2015-10-21 英特尔Ip公司 漫游情景中wlan选择策略的控制
US20160301790A1 (en) * 2015-04-08 2016-10-13 Qualcomm Incorporated User equipment capability report management during caller id extraction
US20180299280A1 (en) * 2017-04-15 2018-10-18 Qualcomm Incorporated Enhanced navigation with crowd-sourced information
WO2020071536A1 (fr) * 2018-10-04 2020-04-09 Nec Corporation Procédure pour mettre à jour les paramètres relatifs à une commande d'accès unifié

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Publication number Priority date Publication date Assignee Title
CN104995961A (zh) * 2013-03-29 2015-10-21 英特尔Ip公司 漫游情景中wlan选择策略的控制
US20160301790A1 (en) * 2015-04-08 2016-10-13 Qualcomm Incorporated User equipment capability report management during caller id extraction
US20180299280A1 (en) * 2017-04-15 2018-10-18 Qualcomm Incorporated Enhanced navigation with crowd-sourced information
WO2020071536A1 (fr) * 2018-10-04 2020-04-09 Nec Corporation Procédure pour mettre à jour les paramètres relatifs à une commande d'accès unifié

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025166785A1 (fr) * 2024-02-08 2025-08-14 Oppo广东移动通信有限公司 Procédé de communication sans fil, dispositif terminal et dispositif de réseau central

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