WO2021217541A1 - Surveillance de signal de radiomessagerie pour de multiples communications d'abonnement - Google Patents

Surveillance de signal de radiomessagerie pour de multiples communications d'abonnement Download PDF

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Publication number
WO2021217541A1
WO2021217541A1 PCT/CN2020/087961 CN2020087961W WO2021217541A1 WO 2021217541 A1 WO2021217541 A1 WO 2021217541A1 CN 2020087961 W CN2020087961 W CN 2020087961W WO 2021217541 A1 WO2021217541 A1 WO 2021217541A1
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WIPO (PCT)
Prior art keywords
cell
network
paging signals
connectivity
subscription
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PCT/CN2020/087961
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English (en)
Inventor
Hao Zhang
Chaofeng HUI
Fojian ZHANG
Jian Li
Yuankun ZHU
Bo Yu
Jingnan QU
Tianya LIN
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Qualcomm Incorporated
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Priority to PCT/CN2020/087961 priority Critical patent/WO2021217541A1/fr
Publication of WO2021217541A1 publication Critical patent/WO2021217541A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/02—Access restriction performed under specific conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/04—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration using triggered events
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/005—Transmission of information for alerting of incoming communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/34—Selective release of ongoing connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/005—Multiple registrations, e.g. multihoming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/183—Processing at user equipment or user record carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • the following relates generally to wireless communications and more specifically to paging signal monitoring for multiple subscription communications.
  • 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 multiple subscriptions to connect with multiple networks simultaneously. In some cases, communications with one of the networks may adversely impact the communications with another network.
  • the described techniques relate to improved methods, systems, devices, and apparatuses that support paging signal monitoring for multiple subscription communications.
  • the described techniques provide for disabling connectivity of a cell based on receiving dummy paging signals from the cell.
  • a user equipment (UE) that is configured with dual SIM connectivity may establish a connection with a first network (e.g., a 5G network) associated with a first subscription and receive data transmissions from the first network.
  • the UE may receive one or more paging signals from a cell of a second network (e.g., an LTE network) associated with a second subscription.
  • a first network e.g., a 5G network
  • LTE network e.g., an LTE network
  • the cell of the second network may remain inactive when the UE connects with the cell of the second network and may release the UE from the connection, which may indicate that the paging signal is a dummy paging signal.
  • the UE may disable connectivity with the cell of second network by adding a cell identifier of the cell to a barred cell list based on the paging signal being a dummy paging signal.
  • the UE may refrain from re-establishing connectivity with the cell while the cell identifier of the cell is on the barred cell list.
  • a method of wireless communications at a UE may include establishing a connection with a first network associated with a first subscription, receiving one or more paging signals from a cell of a second network associated with a second subscription, determining that the one or more paging signals are dummy paging signals, disabling connectivity with the cell based on the one or more paging signals being dummy paging signals, adding a cell identifier of the cell to a barred cell list, and refraining to re-establish connectivity with the cell while the cell identifier is on the barred cell list.
  • 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 establish a connection with a first network associated with a first subscription, receive one or more paging signals from a cell of a second network associated with a second subscription, determine that the one or more paging signals are dummy paging signals, disable connectivity with the cell based on the one or more paging signals being dummy paging signals, add a cell identifier of the cell to a barred cell list, and refrain to re-establish connectivity with the cell while the cell identifier is on the barred cell list.
  • the apparatus may include means for establishing a connection with a first network associated with a first subscription, receiving one or more paging signals from a cell of a second network associated with a second subscription, determining that the one or more paging signals are dummy paging signals, disabling connectivity with the cell based on the one or more paging signals being dummy paging signals, adding a cell identifier of the cell to a barred cell list, and refraining to re-establish connectivity with the cell while the cell identifier is on the barred cell list.
  • 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 establish a connection with a first network associated with a first subscription, receive one or more paging signals from a cell of a second network associated with a second subscription, determine that the one or more paging signals are dummy paging signals, disable connectivity with the cell based on the one or more paging signals being dummy paging signals, add a cell identifier of the cell to a barred cell list, and refrain to re-establish connectivity with the cell while the cell identifier is on the barred cell list.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for incrementing a counter corresponding to the cell based on the one or more paging signals being dummy paging signals, and identifying that the counter reaches a threshold number of dummy paging signals based on incrementing the counter, where the cell identifier of the cell may be added to the barred cell list based on identifying the counter reaches the threshold number of dummy paging signals.
  • determining that the one or more paging signals may be dummy paging signals may include operations, features, means, or instructions for entering a connected state with the cell of the second network in response to each receipt of the one or more paging signals, and receiving a connection release from the second network after each connected state.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for incrementing a counter associated with the cell each time the one or more paging signals results in a connected state followed by a connection release.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for determining that the one or more paging signals may be dummy paging signals based on a lack of activity by the second network during the connected state formed in response to receipt of each of the one or more paging signals.
  • entering the connected state with the second network in response to each receipt of the one or more paging signals may include operations, features, means, or instructions for performing a radio resource control procedure with the second network to establish the connected state, where the radio resource control procedure may have a higher priority than the connection with the first network associated with the first subscription.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for starting a timer upon disabling the connectivity with the cell of the second network, and enabling the connectivity with the cell of the second network upon expiration of the timer.
  • enabling connectivity with the cell may include operations, features, means, or instructions for removing the cell identifier of the cell from the barred cell list.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving a paging signal from a second cell of the second network associated with the second subscription while the connectivity with the cell of the second network may be disabled, and entering a connected state with the second cell of the second network in response to receipt of the paging signal.
  • Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for performing a cell reelection in the second network to identify a second cell of the second network based on disabling the connectivity with the cell.
  • the first network may be a 5G network
  • the second network may be a 4G network.
  • FIG. 1 illustrates an example of a system for wireless communications that supports paging signal monitoring for multiple subscription communications in accordance with aspects of the present disclosure.
  • FIG. 2 illustrates an example of a system that supports paging signal monitoring for multiple subscription communications in accordance with aspects of the present disclosure.
  • FIG. 3 illustrates an example of a process flow that supports paging signal monitoring for multiple subscription communications in accordance with aspects of the present disclosure.
  • FIGs. 4 and 5 show block diagrams of devices that support paging signal monitoring for multiple subscription communications in accordance with aspects of the present disclosure.
  • FIG. 6 shows a block diagram of a communications manager that supports paging signal monitoring for multiple subscription communications in accordance with aspects of the present disclosure.
  • FIG. 7 shows a diagram of a system including a device that supports paging signal monitoring for multiple subscription communications in accordance with aspects of the present disclosure.
  • FIGs. 8 and 9 show flowcharts illustrating methods that support paging signal monitoring for multiple subscription communications in accordance with aspects of the present disclosure.
  • a user equipment may be configured with a dual-subscriber identity module (SIM) .
  • SIM may be associated with a subscription that allows the UE to connect to a network.
  • each SIM may connect to a different network.
  • the UE may have a first SIM with a first subscription providing access to a first network (e.g., 5G network) , and a second SIM with a second subscription providing access to a second network (e.g., 4G network) .
  • the UE may only have a single radio frequency chain coupled to a set of antennas (e.g., radio frequency transmit/receive antennas) . As such, a radio frequency resource conflict may result between the two subscriptions.
  • the UE may establish a connection with a 5G network using the first subscription, and the UE may establish a connection with a 4G network using the second subscription.
  • the UE may utilize the connection with the 5G network (e.g., a default data subscription (DDS) ) for low-latency communications (e.g., online gaming, streaming, video games) .
  • the UE may receive paging signals (e.g., unexpected Long Term Evolution (LTE) mobile terminated (MT) packet switched (PS) paging signals) via the second subscription (e.g., a non-default data subscription (nDDS) ) .
  • LTE Long Term Evolution
  • MT mobile terminated
  • PS packet switched
  • the UE may perform a connection procedure (e.g., radio resource control (RRC) procedure) to establish a connection with the 4G network based on receiving the paging signals.
  • RRC radio resource control
  • the connection procedure may be assigned a higher priority than the low-latency communications on the first subscription. Due to the UE having a single radio frequency chain, the radio frequency resources may be allocated to the second subscription until the RRC procedure and communications associated with paging signals is completed, and the first subscription may lose the radio frequency resources during this time. As such, low-latency activities may experience delays. Further, the paging signals received by the UE may be dummy paging signals.
  • the 4G network may not take any further action for a period of time before releasing the connection. If the UE frequently receives dummy paging signals, the low-latency activities on the first subscription may suffer.
  • a UE may be configured to add a cell identifier to a barred cell list when the UE receives a number of dummy paging signals from the cell.
  • the UE may ignore paging signals from the cell (e.g., connectivity is disabled) .
  • a dummy page may refer to a page that results in no further action from the network from which the page was transmitted, other than the network releasing the UE from connection with the network.
  • the UE may maintain a counter associated with receipt of dummy paging signals received from various cells.
  • the UE may determine that the cell of the 4G network is abnormal. In response to this determination, the UE may add the cell identifier to the barred cell list and disable connectivity with the particular cell of 4G network for a period of time. That is, once the cell identifier is added to the list, a barred cell timer may be initiated. When the timer expires, the UE may remove the cell identifier from the barred cell list to re-enable connectivity with the cell.
  • a preconfigured threshold e.g., a maximum count
  • the described techniques may support improvements in multiple subscription communications by increasing efficiency, improving reliability, and decreasing latency, among other advantages.
  • supported techniques may include improved network operations and, in some examples, may promote network efficiencies, among other benefits.
  • aspects of the disclosure are initially described in the context of wireless communications systems. Aspects of the disclosure are further described with respect to a communications system and a process flow. Aspects of the disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flowcharts that relate to paging signal monitoring for multiple subscription communications.
  • FIG. 1 illustrates an example of a wireless communications system 100 that supports paging signal monitoring for multiple subscription communications 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 support multiple subscriptions that may allow the UE 115 to establish connections with multiple networks, where each subscription may support one network.
  • the UE 115 may establish a connection with a first network (e.g., a 5G network) associated with a first subscription and receive data transmissions from the first network.
  • the UE 115 may concurrently receive one or more paging signals from a cell of a second network (e.g., an LTE network) associated with the second subscription.
  • the UE 115 may perform a connection procedure (e.g., an RRC procedure) with the cell of the second network in response to receiving the one or more paging signals.
  • a connection procedure e.g., an RRC procedure
  • the cell of the second network may remain inactive when the UE 115 connects with the cell of the second network and may release the UE 115 from the connection.
  • the UE 115 may increment a dummy paging counter each time the cell of the second network releases the UE 115 from a connection with the cell of the second network after the cell of the second network transmitted paging signals to the UE 115 without any additional action.
  • the UE 115 may disable connectivity with the cell of second network based on the one or more paging signals being dummy paging signals or based on the dummy paging counter associated with the cell reaching a threshold. Disabling connectivity may include adding a cell identifier of the cell to a barred cell list.
  • the UE 115 may refrain from re-establishing connectivity with the cell while the cell identifier of the cell is on the barred cell list.
  • the UE 115 initiates a barred cell timer associated with the cell upon adding the cell to the barred cell list. When the timer expires, the UE 115 may remove the cell identifier from the barred cell list. While the cell identifier is on the barred cell list, the UE 115 may receive paging signals from other cells of the second network and establish connections with such cells.
  • FIG. 2 illustrates an example of a wireless communications system 200 that supports paging signal monitoring for multiple subscription communications in accordance with aspects of the present disclosure.
  • wireless communications system 200 may implement aspects of wireless communications system 100.
  • the wireless communications system 200 may include base stations 105-a, 105-b, and 105-c and UE 115-a, which may be examples of base stations 105 and a UE 115 as described with reference to FIG. 1.
  • Each base station 105 may serve a geographic coverage area. In some cases, one or more of the geographic coverage areas served by base stations 105-a, 105-b, and 105-c may overlap.
  • UE 115-a may be configured with multiple SIM functionality and may be configured to support improved multiple subscription communications by detecting dummy paging signals. For example, UE 115-a may limit communications on an abnormal cell of a network served by one base station 105 associated with one subscription to improve communications with another network served by another base station 105 associated with another subscription. Additionally or alternatively, other wireless devices, such as base stations 105-a, 105-b, or 105-c, or some combination of these base stations 105, may implement procedures to improve the multiple subscription communications.
  • UE 115 a may be an example of a dual-SIM, or multi-SIM, UE 115.
  • UE 115 a may include a first SIM 205 and a second SIM 210.
  • the first SIM 205 may provide a first subscription
  • the second SIM 210 may provide a second subscription.
  • UE 115-a may communicate with a first communications network via the first subscription and may simultaneously or contemporaneously communicate with a second communications network via the second subscription.
  • each network may be supported by a different base station 105, or each network may be supported by the same base station 105, or a combination thereof.
  • base station 105-a may support a 5G network
  • base station 105-b may support a 4G network
  • base station 105-c may support the 4G network.
  • a network may refer to a cell.
  • the base station 105-b and 105-c may support different cells of the 4G network.
  • a base station 105 may support multiple cells of the same or different networks.
  • UE 115-a may support communications with two base stations 105 (e.g., two networks) at a time.
  • UE 115-a may communicate with base station 105-a associated with a first subscription via communication link 215, and UE 115-a may communicate with base station 105-b associated with the second subscription over communications link 220-a, or with base station 105-c associated with the second subscription over communications link 220-c.
  • UE 115-a may establish a connection with base station 105-a and transmit and receive signals to base station 105-a over communication link 215.
  • UE 115-a may use base station 105-a, as base station 105-a supports a 5G network, for low-latency activities (e.g., online gaming, streaming) .
  • UE 115-a may initially perform an attach procedure with a cell of base station 105-b via the second subscription, that supports a 4G network.
  • UE 115-a may receive one or more unexpected paging signals (e.g., MT PS paging signals) from the cell of base station 105-b.
  • unexpected paging signals e.g., MT PS paging signals
  • UE 115-a may perform a connection procedure, such as an RRC procedure.
  • resources may be limited at UE 115-a and responding to the one or more paging signals may be given a higher priority than the communications with base station 105-a.
  • UE 115-a performs the RRC procedure and waits for the cell of base station 105-b to respond, communications with base station 105-a may be interrupted.
  • UE 115-a may perform the RRC procedure and wait for an action by the cell of the base station 105-b. In some cases, the cell of base station 105-b may not perform any action other than releasing UE 115-a from the RRC connection. In some cases, after a preconfigured duration of waiting for an action by the cell of base station 105-b, UE 115-a may transmit an RRC release request to the cell of the base station 105-b and the cell of base station 105-b may confirm the request and release UE 115-a from the RRC connection. In some cases, the cell of the base station 105-b may autonomously determine to release UE 115-a from the RRC connection.
  • Paging signals that result in no action from a base station 105 or network, other than an RRC release may be referred to as dummy paging signals as the paging signal does not serve a purpose.
  • UE 115-a may continue to receive paging signals from the cell of the base station 105-b and UE 115-a may continue to perform RRC procedures, with no other result from the cell of the base station 105-b other than releasing UE 115-a from the RRC connection. This repeated behavior may adversely impact the experience of UE 115-a with base station 105-a, and thus my adversely impact low-latency communications supported by base station 105-a.
  • UE 115-a may be configured to add a cell associated with receipt of dummy paging cells to a barred cell list 230 (e.g., bar_4G_cell_list) . For example, each time UE 115-a receives a paging signal, and performs an RRC procedure only to be released from the RRC connection, UE 115-a may increment a counter associated with the cell. If the counter reaches a preconfigured number, the UE 115-a may determine that the cell associated the dummy paging signals (e.g., the cell of base station 105-b) is abnormal.
  • a barred cell list 230 e.g., bar_4G_cell_list
  • the cell identifier of the cell may be added to the barred cell list 230 maintained by the UE 115-a.
  • UE 115-a may disable connectivity with cell associated with the dummy paging signals and base station 105-b. That is, when the cell identifier associated with the cell is on the barred cell list 230, the UE 115-a may refrain from re-establishing a connection with the cell.
  • the UE 115-a may initiate a barred cell timer (e.g., T_4g_backoff) for the cell when the cell is added to the barred cell list 230.
  • the timer may be set for a predetermined period of time (e.g., 60 minutes) .
  • the UE 115-a may refrain from re-establishing a connection with the cell by ignoring any paging signals received from the cell.
  • the UE 115-a may remove the cell identifier from the barred cell list 230, thus enabling reconnection with the cell.
  • the timer duration may be a user input based on the expected duration of activity on the 5G network.
  • the timer duration (e.g., some number of minutes, or some number of hours, or a combination thereof) may be selected by UE 115-a based on the low-latency activity on the 5G network. For example, the timer duration may be shorter if the low-latency activity is a video call, compared to a longer timer duration if the low-latency activity is a video game or streamed movie, etc.
  • the connection between UE 115-a and the cell of the base station 105-b may be disabled as long as UE 115-a identifies a low-latency activity being performed on the 5G network, and as long as the timer is running. For example, if the timer is running, but the UE 115-a detects the low-latency activity has stopped on the 5G network, UE 115-a may remove the cell identifier from the barred cell list and thus enable connectivity with the cell.
  • the UE 115-a may receive paging signals from other cells of the second network (e.g., the 4G network) .
  • the UE 115-a may receive paging signals from a cell associated with base station 105-c and establish a communications link 220-b with the cell/network based on these signals.
  • the UE 115-c may be able to receive calls, messages, and the like, via the second network while also avoiding a problematic cell (e.g., the cell associated with base station 105-b) .
  • the timer may be ended and/or the barred cell list 230 may be erased.
  • FIG. 3 illustrates an example of a process flow 300 that supports paging signal monitoring for multiple subscription communications in accordance with aspects of the present disclosure.
  • process flow 300 may implement aspects of wireless communications system 100.
  • the process flow 300 may illustrate an example of a dummy paging signal detection and network switching procedure for improved communications.
  • a UE such as a UE described with reference to FIGs. 1 and 2, may support subscription 305-a and subscription 305-b that may be used for communications with 4G cell 310-a, 5G cell 310-b, or 3G cell 310-c, or a combination thereof.
  • One or more of the subscriptions 305 may switch between cells 310 based on a previously enabled cell being abnormal.
  • the cells 310 may each be served by a different base station, or multiple cells 310 may be served by the same base station 105, where the one or more base stations may be examples of the corresponding wireless devices described with reference to FIGs. 1 and 2.
  • a cell may refer to a network as described with reference to FIG. 2.
  • another device such as a base station may implement the procedures.
  • Alternative examples of the following may be implemented, where some steps are performed in a different order than described or are not performed at all. In some cases, steps may include additional features not mentioned below, or further steps may be added.
  • subscription 305-a may be allocated for 5G cell 310-b to support low-latency communications.
  • subscription 305-b may be allocated for 4G, which may support communication via cell 310-a and 4G cell 310-c.
  • Each subscription 305 may be associated with a SIM of the UE.
  • subscription 305-a may transmit a 5G registration request to 5G cell 310-b.
  • Subscription 305-a may transmit the registration request to establish a connection with 5G cell 310-b.
  • 5G cell 310-b may transmit a 5G registration accept message to subscription 305-a.
  • the UE may establish a connection with 5G cell 310-b (e.g., a first network) associated with subscription 305-a (e.g., a first subscription) .
  • subscription 305-b may transmit a 4G attach request to 4G cell 310-a.
  • 4G cell 310-a may transmit a 4G attach accept message to subscription 305-b.
  • subscription 305-a and 5G cell 310-b may enter a 5G connect mode and begin a data service.
  • the data service may support a low-latency activity (e.g., online gaming, streaming, video games) .
  • 4G cell 310-a may transmit one or more unexpected paging signals to subscription 305-b.
  • the UE may receive one or more paging signals from a second network (e.g., 4G cell 310-a) associated with a second subscription (e.g., subscription 305-b) .
  • the one or more paging signals may be PS paging signals.
  • the one or more paging signals may be dummy paging signals.
  • subscription 305-b may establish a connection with 4G cell 310-a via a connection procedure, such as an RRC procedure.
  • the UE e.g., subscription 305-a
  • the second network e.g., 4G cell 310-a
  • the RRC procedure may have a higher priority than the connection with the first network associated with the first subscription (e.g., connection between subscription 305-a and 5G cell 310-b) .
  • subscription 305-a may stop data transfer as the limited allocated resources are being used by subscription 305-b to respond to the one or more paging signals transmitted by 4G cell 310-a.
  • the low-latency activities may experience frequent, or long delays that adversely impact the user experience on 5G cell 310-a.
  • 4G cell 310-a may transmit an RRC connection release message to subscription 305-b.
  • 4G cell 310-a may release the RRC connection after a preconfigured duration of inactivity by 4G cell 310-a.
  • the release message may be based on an RRC connection release request transmitted by subscription 305-b to 4G 310-a after a preconfigured duration of inactivity.
  • the UE, or subscription 305-b may determine that the one or more paging signals are dummy paging signals.
  • the UE, or subscription 305-b may determine that the one or more paging signals are dummy paging signals based on a lack of activity by the second network (e.g., 4G cell 310-a) during the connected state formed in response to receipt of each of the one or more paging signals.
  • the second network e.g., 4G cell 310-a
  • subscription 305-a may resume data transfer with cell 310-b of the 5G network based on the RRC connection of subscription 305-b with the cell 310-a of the 4G network being released.
  • the UE, or a subscription may initiate and use a counter associated with the 4G cell 310-a to count the number of dummy paging signals received by the UE from 4G cell 310-a.
  • the UE may increment the counter associated with the 4G cell 310-a.
  • subscription 305-b may determine whether the current count reaches a maximum count or a threshold value. If the maximum/threshold count has not been reached, at 334, then procedure 1 may be looped. For example, subscription 305-b may continue to receive dummy paging signals until the threshold value for the counter has been reached. If the threshold value is reached, subscription 305-b may leave procedure 1.
  • a cell identifier for cell 310-a is added to a barred cell list.
  • the UE/subscription 305-b may ignore any paging signals from the cells that are on the barred cell list.
  • the subscription 305-b may perform a cell reselection procedure for LTE to identify 4G cell 310-c to support 4G communications.
  • the subscription 305-b may start a backoff timer associated with the cell 310-a.
  • procedure 2 may be optional and may occur when a tracking area code (TAC) changes for the cell 310-a.
  • subscription 305-b transmits a tracking area update (TAU) request to the cell 310-c.
  • TAU tracking area update
  • the cell 310-c transmits a TAU accept transmission to the subscription 305-b.
  • the TAU accept message may include various information corresponding to the cell 310-c.
  • FIG. 4 shows a block diagram 400 of a device 405 that supports paging signal monitoring for multiple subscription communications in accordance with aspects of the present disclosure.
  • the device 405 may be an example of aspects of a UE 115 as described herein.
  • the device 405 may include a receiver 410, a communications manager 415, and a transmitter 420.
  • the device 405 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 410 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 paging signal monitoring for multiple subscription communications, etc. ) . Information may be passed on to other components of the device 405.
  • the receiver 410 may be an example of aspects of the transceiver 720 described with reference to FIG. 7.
  • the receiver 410 may utilize a single antenna or a set of antennas.
  • the communications manager 415 may establish a connection with a first network associated with a first subscription, receive one or more paging signals from a cell of a second network associated with a second subscription, determine that the one or more paging signals are dummy paging signals, disable connectivity with the cell based on the one or more paging signals being dummy paging signals, refrain to re-establish connectivity with the cell while the cell identifier is on the barred cell list, and add a cell identifier of the cell to a barred cell list.
  • the communications manager 415 may be an example of aspects of the communications manager 710 described herein.
  • the communications manager 415 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 415, or its sub-components may be executed by a general-purpose processor, a digital signal processor (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.
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • FPGA field-programmable gate
  • the communications manager 415 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 415, or its sub-components may be a separate and distinct component in accordance with various aspects of the present disclosure.
  • the communications manager 415, 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 420 may transmit signals generated by other components of the device 405.
  • the transmitter 420 may be collocated with a receiver 410 in a transceiver module.
  • the transmitter 420 may be an example of aspects of the transceiver 720 described with reference to FIG. 7.
  • the transmitter 420 may utilize a single antenna or a set of antennas.
  • the communications manager 415 as described herein may be implemented to realize one or more potential advantages.
  • One implementation may allow the device 405 to efficiently utilize resources for communications on multiple networks.
  • a device 405 may bar a cell supported by one subscription upon the determination that the cell is abnormal to improve communications on the network supported by the other subscription.
  • a processor of a UE 115 may increase reliability and efficiency for a UE 115 supporting communications on multiple networks simultaneously because the UE 115 can bar a cell on networks to mitigate abnormal behavior by the cell on the network.
  • FIG. 5 shows a block diagram 500 of a device 505 that supports paging signal monitoring for multiple subscription communications in accordance with aspects of the present disclosure.
  • the device 505 may be an example of aspects of a device 405, or a UE 115 as described herein.
  • the device 505 may include a receiver 510, a communications manager 515, and a transmitter 545.
  • 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 paging signal monitoring for multiple subscription communications, 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 720 described with reference to FIG. 7.
  • the receiver 510 may utilize a single antenna or a set of antennas.
  • the communications manager 515 may be an example of aspects of the communications manager 415 as described herein.
  • the communications manager 515 may include a connection establishment component 520, a paging signal receiving component 525, a paging signal determination component 530, a connection disabling component 535, and a barred cell component 540.
  • the communications manager 515 may be an example of aspects of the communications manager 710 described herein.
  • the connection establishment component 520 may establish a connection with a first network associated with a first subscription.
  • the paging signal receiving component 525 may receive one or more paging signals from a cell of a second network associated with a second subscription.
  • the paging signal determination component 530 may determine that the one or more paging signals are dummy paging signals.
  • connection disabling component 535 may disable connectivity with the cell based on the one or more paging signals being dummy paging signals and refrain to re-establish connectivity with the cell while the cell identifier is on the barred cell list.
  • the barred cell component 540 may add a cell identifier of the cell to a barred cell list.
  • the transmitter 545 may transmit signals generated by other components of the device 505.
  • the transmitter 545 may be collocated with a receiver 510 in a transceiver module.
  • the transmitter 545 may be an example of aspects of the transceiver 720 described with reference to FIG. 7.
  • the transmitter 545 may utilize a single antenna or a set of antennas.
  • FIG. 6 shows a block diagram 600 of a communications manager 605 that supports paging signal monitoring for multiple subscription communications in accordance with aspects of the present disclosure.
  • the communications manager 605 may be an example of aspects of a communications manager 415, a communications manager 515, or a communications manager 710 described herein.
  • the communications manager 605 may include a connection establishment component 610, a paging signal receiving component 615, a paging signal determination component 620, a connection disabling component 625, a barred cell component 630, a counter component 635, a connected state component 640, a RRC component 645, a barred cell timer component 650, a connection enabling component 655, and a cell reselection component 660.
  • Each of these modules may communicate, directly or indirectly, with one another (e.g., via one or more buses) .
  • the connection establishment component 610 may establish a connection with a first network associated with a first subscription.
  • the paging signal receiving component 615 may receive one or more paging signals from a cell of a second network associated with a second subscription.
  • the paging signal receiving component 615 may receive a paging signal from a second cell of the second network associated with the second subscription while the connectivity with the cell of the second network is disabled.
  • the paging signal determination component 620 may determine that the one or more paging signals are dummy paging signals.
  • connection disabling component 625 may disable connectivity with the cell based on the one or more paging signals being dummy paging signals.
  • connection disabling component 625 may refrain to re-establish connectivity with the cell while the cell identifier is on the barred cell list.
  • the barred cell component 630 may add a cell identifier of the cell to a barred cell list.
  • the counter component 635 may increment a counter corresponding to the cell based on the one or more paging signals being dummy paging signals.
  • the counter component 635 may identify that the counter reaches a threshold number of dummy paging signals based on incrementing the counter, where the cell identifier of the cell is added to the barred cell list based on identifying the counter reaches the threshold number of dummy paging signals.
  • the counter component 635 may increment a counter associated with a cell each time the one or more paging signals results in a connected state followed by a connection release.
  • the connected state component 640 may enter a connected state with the cell of the second network in response to each receipt of the one or more paging signals.
  • the connected state component 640 may receive a connection release from the second network after each connected state.
  • the connected state component 640 may determine that the one or more paging signals are dummy paging signals based on a lack of activity by the second network during the connected state formed in response to receipt of each of the one or more paging signals.
  • the connected state component 640 may enter a connected state with the second cell of the second network in response to receipt of the paging signal.
  • the RRC component 645 may perform a radio resource control procedure with the second network to establish the connected state, where the radio resource control procedure has a higher priority than the connection with the first network associated with the first subscription.
  • the barred cell timer component 650 may start a timer upon disabling the connectivity with the cell of the second network.
  • connection enabling component 655 may enable the connectivity with the cell of the second network upon expiration of the timer.
  • connection enabling component 655 may remove the cell identifier of the cell from the barred cell list.
  • the cell reselection component 660 may perform a cell reelection in the second network to identify a second cell of the second network based on disabling the connectivity with the cell.
  • FIG. 7 shows a diagram of a system 700 including a device 705 that supports paging signal monitoring for multiple subscription communications in accordance with aspects of the present disclosure.
  • the device 705 may be an example of or include the components of device 405, device 505, or a UE 115 as described herein.
  • the device 705 may include components for bi-directional voice and data communications including components for transmitting and receiving communications, including a communications manager 710, an I/O controller 715, a transceiver 720, an antenna 725, memory 730, and a processor 740. These components may be in electronic communication via one or more buses (e.g., bus 745) .
  • buses e.g., bus 745
  • the communications manager 710 may establish a connection with a first network associated with a first subscription, receive one or more paging signals from a cell of a second network associated with a second subscription, determine that the one or more paging signals are dummy paging signals, disable connectivity with the cell based on the one or more paging signals being dummy paging signals, refrain to re-establish connectivity with the cell while the cell identifier is on the barred cell list, and add a cell identifier of the cell to a barred cell list.
  • the I/O controller 715 may manage input and output signals for the device 705.
  • the I/O controller 715 may also manage peripherals not integrated into the device 705.
  • the I/O controller 715 may represent a physical connection or port to an external peripheral.
  • the I/O controller 715 may utilize an operating system such as or another known operating system.
  • the I/O controller 715 may represent or interact with a modem, a keyboard, a mouse, a touchscreen, or a similar device.
  • the I/O controller 715 may be implemented as part of a processor.
  • a user may interact with the device 705 via the I/O controller 715 or via hardware components controlled by the I/O controller 715.
  • the transceiver 720 may communicate bi-directionally, via one or more antennas, wired, or wireless links as described above.
  • the transceiver 720 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver.
  • the transceiver 720 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 725. However, in some cases the device may have more than one antenna 725, which may be capable of concurrently transmitting or receiving multiple wireless transmissions.
  • the memory 730 may include RAM and ROM.
  • the memory 730 may store computer-readable, computer-executable code 735 including instructions that, when executed, cause the processor to perform various functions described herein.
  • the memory 730 may contain, among other things, a basic input/output system (BIOS) which may control basic hardware or software operation such as the interaction with peripheral components or devices.
  • BIOS basic input/output system
  • the processor 740 may include an intelligent hardware device, (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, a field programmable gate array (FPGA) , a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof) .
  • the processor 740 may be configured to operate a memory array using a memory controller.
  • a memory controller may be integrated into the processor 740.
  • the processor 740 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 730) to cause the device 705 to perform various functions (e.g., functions or tasks supporting paging signal monitoring for multiple subscription communications) .
  • the code 735 may include instructions to implement aspects of the present disclosure, including instructions to support wireless communications.
  • the code 735 may be stored in a non-transitory computer-readable medium such as system memory or other type of memory. In some cases, the code 735 may not be directly executable by the processor 740 but may cause a computer (e.g., when compiled and executed) to perform functions described herein.
  • FIG. 8 shows a flowchart illustrating a method 800 that supports paging signal monitoring for multiple subscription communications in accordance with aspects of the present disclosure.
  • the operations of method 800 may be implemented by a UE 115 or its components as described herein.
  • the operations of method 800 may be performed by a communications manager as described with reference to FIGs. 4 through 7.
  • a UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, a UE may perform aspects of the functions described below using special-purpose hardware.
  • the UE may establish a connection with a first network associated with a first subscription.
  • the operations of 805 may be performed according to the methods described herein. In some examples, aspects of the operations of 805 may be performed by a connection establishment component as described with reference to FIGs. 4 through 7.
  • the UE may receive one or more paging signals from a cell of a second network associated with a second subscription.
  • the operations of 810 may be performed according to the methods described herein. In some examples, aspects of the operations of 810 may be performed by a paging signal receiving component as described with reference to FIGs. 4 through 7.
  • the UE may determine that the one or more paging signals are dummy paging signals.
  • the operations of 815 may be performed according to the methods described herein. In some examples, aspects of the operations of 815 may be performed by a paging signal determination component as described with reference to FIGs. 4 through 7.
  • the UE may disable connectivity with the cell based on the one or more paging signals being dummy paging signals.
  • the operations of 820 may be performed according to the methods described herein. In some examples, aspects of the operations of 820 may be performed by a connection disabling component as described with reference to FIGs. 4 through 7.
  • the UE may add a cell identifier of the cell to a barred cell list.
  • the operations of 825 may be performed according to the methods described herein. In some examples, aspects of the operations of 825 may be performed by a barred cell component as described with reference to FIGs. 4 through 7.
  • the UE may refrain to re-establish connectivity with the cell while the cell identifier is on the barred cell list.
  • the operations of 830 may be performed according to the methods described herein. In some examples, aspects of the operations of 830 may be performed by a connection disabling component as described with reference to FIGs. 4 through 7.
  • FIG. 9 shows a flowchart illustrating a method 900 that supports paging signal monitoring for multiple subscription communications 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. 4 through 7.
  • a UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, a UE may perform aspects of the functions described below using special-purpose hardware.
  • the UE may establish a connection with a first network associated with a first subscription.
  • 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 connection establishment component as described with reference to FIGs. 4 through 7.
  • the UE may receive one or more paging signals from a cell of a second network associated with a second subscription.
  • 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 a paging signal receiving component as described with reference to FIGs. 4 through 7.
  • the UE may determine that the one or more paging signals are dummy paging signals.
  • 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 paging signal determination component as described with reference to FIGs. 4 through 7.
  • the UE may increment a counter corresponding to the cell based on the one or more paging signals being dummy paging signals.
  • 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 counter component as described with reference to FIGs. 4 through 7.
  • the UE may identify that the counter reaches a threshold number of dummy paging signals based on incrementing the counter, where the cell identifier of the cell is added to the barred cell list based on identifying the counter reaches the threshold number of dummy paging signals.
  • the operations of 925 may be performed according to the methods described herein. In some examples, aspects of the operations of 925 may be performed by a counter component as described with reference to FIGs. 4 through 7.
  • the UE may disable connectivity with the cell based on the one or more paging signals being dummy paging signals.
  • the operations of 930 may be performed according to the methods described herein. In some examples, aspects of the operations of 930 may be performed by a connection disabling component as described with reference to FIGs. 4 through 7.
  • the UE may add a cell identifier of the cell to a barred cell list.
  • the operations of 935 may be performed according to the methods described herein. In some examples, aspects of the operations of 935 may be performed by a barred cell component as described with reference to FIGs. 4 through 7.
  • the UE may refrain to re-establish connectivity with the cell while the cell identifier is on the barred cell list.
  • the operations of 940 may be performed according to the methods described herein. In some examples, aspects of the operations of 940 may be performed by a connection disabling component as described with reference to FIGs. 4 through 7.
  • 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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  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne des procédés, des systèmes et des dispositifs de communication sans fil. Un équipement utilisateur (UE) peut établir une connexion avec un premier réseau associé à un premier abonnement et recevoir des transmissions de données du premier réseau. L'UE peut recevoir un ou plusieurs signaux de radiomessagerie d'une cellule d'un second réseau associé à un second abonnement. La cellule du second réseau peut rester inactive lorsque l'UE se connecte à la cellule du second réseau et peut libérer l'UE de la connexion, ce qui peut indiquer que le signal de radiomessagerie est un signal de radiomessagerie factice. L'UE peut désactiver la connectivité avec la cellule du second réseau en ajoutant un identifiant de la cellule à une liste de cellules interdites. L'UE peut s'abstenir de rétablir la connectivité avec la cellule tant que l'identifiant de la cellule se trouve sur la liste de cellules interdites.
PCT/CN2020/087961 2020-04-30 2020-04-30 Surveillance de signal de radiomessagerie pour de multiples communications d'abonnement WO2021217541A1 (fr)

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Citations (4)

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Publication number Priority date Publication date Assignee Title
EP0714216A2 (fr) * 1994-11-22 1996-05-29 Nec Corporation Installation de transmission de signaux d'appels sélectifs
US20130039244A1 (en) * 2011-08-12 2013-02-14 Li-Hsiang Sun Method for processing data associated with idle mode signaling reduction in a wireless communication system
US20170289955A1 (en) * 2016-03-30 2017-10-05 Motorola Mobility Llc System and Method for Managing the Monitoring and Receipt of a Paging Signal
US20190306760A1 (en) * 2018-03-27 2019-10-03 Mediatek Inc. Apparatuses and methods for coordinating communication operations associated with a plurality of subscriber identities

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Publication number Priority date Publication date Assignee Title
EP0714216A2 (fr) * 1994-11-22 1996-05-29 Nec Corporation Installation de transmission de signaux d'appels sélectifs
US20130039244A1 (en) * 2011-08-12 2013-02-14 Li-Hsiang Sun Method for processing data associated with idle mode signaling reduction in a wireless communication system
US20170289955A1 (en) * 2016-03-30 2017-10-05 Motorola Mobility Llc System and Method for Managing the Monitoring and Receipt of a Paging Signal
US20190306760A1 (en) * 2018-03-27 2019-10-03 Mediatek Inc. Apparatuses and methods for coordinating communication operations associated with a plurality of subscriber identities

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