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    • 专利摘要:
    Embodiments are described herein for the selective joining of wireless cells by a machine type communication user equipment ("EU") ("MTC"). A UE can detect a plurality of wireless cells, each provided by an evolved Node B ("eNB"); The EU MTC can detect categories of eNBs associated with individual wireless cells of the plurality of wireless cells, and can identify one or more wireless cells of the plurality of detected wireless cells on which MTC traffic is permitted. on the basis of the associated eNB categories. The EU MTC can selectively join a wireless cell of the identified wireless cell (s) based on a cell selection criterion. Further, an eNB may provide a wireless cell and provide, to an EU MTC, an MTC policy that identifies a circumstance under which the eNB will allow MTC traffic. The eNB can be configured to selectively serve the EU MTC based on the MTC policy.
    公开号:BE1021379B1
    申请号:E2013/0322
    申请日:2013-05-13
    公开日:2015-11-12
    发明作者:Puneet Jain；Sangeetha Bangolae；Martinez Marta Tarradell；Mo-Han Fong
    申请人:Intel Corporation；
    IPC主号:
    专利说明:

    Selective joining of a machine-type communication user equipment to a wireless cell
    Field
    Embodiments of the present invention generally relate to the technical field of data processing, and more particularly to the selective joining of wireless cells by a machine-type communication user equipment. Background
    The background description provided here serves to present the context of the description generally. The work of the inventors presently named, to the extent described in this background section, as well as those aspects of the description that can not otherwise be considered prior art at the time of filing, are not expressly or implicitly recognized as prior art with respect to the present description. Unless otherwise indicated herein, the methods described in this section are not prior art with respect to the claims of this specification and are not recognized as prior art for inclusion in this section.
    Some User Equipment ("EU") may be used primarily or exclusively for communication with another EU or other computing devices, with little or no human intervention. Examples of such an EU may include wireless weather sensors, assembly line sensors, counters for tracking fleet vehicles, etc. In many cases, these devices can connect to a wireless network and communicate with a network server, for example, over the Internet. In the language of 3GPP Long Term Evolution ("LTE") Version 10 (March 2011) (the "LTE Standard"), such communications may be referred to as Machine Type Communications ("MTC"). In the language of IEEE 802.16, IEEE 802.16-2009, published on May 29, 2009 ("WiMAX"), such communications may be referred to as Machine-to-Machine ("M2M") communications. The EU which communicates mainly or exclusively with other computing devices or EU using machine type communication can generate very low user traffic. In many cases, this traffic can be treated as a low priority. However, as the number of EU MTCs increases, the overall volume of communications may overload a network. Maintaining the connection of such a large number of EU MTCs without impacting other traffic (eg cell phone) can be difficult.
    Brief description of the drawings
    The embodiments will be readily understood by reading the following detailed description in conjunction with the accompanying drawings. To facilitate the present description, like reference numerals denote like structural elements. The embodiments are illustrated by way of example and without any limiting character in the figures of the accompanying drawings.
    FIG. 1 schematically illustrates various network entities configured with applicable portions of the present disclosure to facilitate the selective splicing of a machine-type ("MTC") communication equipment ("UE") to appropriate wireless cells, in accordance with FIG. to various embodiments of the present disclosure.
    Fig. 2 shows an example of a communication exchange that can be implemented between an EU MTC and an evolved B-node ("eNB"), in accordance with various embodiments.
    Fig. 3 shows another example of a communication exchange that can be implemented between an EU MTC and an eNB, in accordance with various embodiments.
    Fig. 4 shows an example of a method that can be implemented by an EU MTC according to various embodiments.
    Fig. 5 shows an example of a method that can be implemented by an eNB, in accordance with various embodiments.
    Figure 6 illustrates another example of a method that can be implemented by an eNB, in accordance with various embodiments.
    Fig. 7 schematically illustrates an example of a computing device on which the described computer readable methods and media can be implemented, in accordance with various embodiments.
    detailed description
    In the following detailed description, reference is made to the accompanying drawings which form a part thereof, similar numerals everywhere designating similar parts, and on which illustrative embodiments are shown which may be practiced. It should be understood that other embodiments can be used and that structural or logical modifications can be made without departing from the scope of the present description. For this reason, the following detailed description should not be taken in a limiting sense, and the scope of the embodiments is defined by the appended claims and their equivalents.
    Various operations may be described as multiple successive actions or distinct operations, in a manner that is most useful for understanding the claimed object. However, the order of the description should not be interpreted as implying that these operations necessarily depend on an order. In particular, these operations may not be executed in the order of presentation. The operations described can be executed in a different order from the described embodiment. Various additional operations may be performed and / or described operations may be omitted in additional embodiments.
    For purposes of this description, the terms "A or B" and "A and / or B" mean (A), (B), or (A and B). For purposes of this description, the terms "A, B, and / or C" means (A), (B), (C), (A and B), (A and C), (B and C) , or (A, B and C).
    The description may use the terms "in one embodiment" or "in embodiments", which may each refer to one or more identical or different embodiments. In addition, the terms "comprising", "including", "comprising", and the like as used with respect to embodiments of the present disclosure are synonymous.
    As used herein, the terms "module" and / or "logic" may designate, be part of, or include an application specific integrated circuit ("ASIC"), an electronic circuit, a processor ( shared, dedicated, or group) and / or memory (shared, dedicated, or group) that execute one or more software or firmware programs, a combinational logic circuit, and / or other suitable components that provide the functionality described .
    Entities that can facilitate the selective joining of wireless cells by machine-type ("MTC") user equipment ("UE") are illustrated in Figure 1. Although the examples described here refer repeatedly to an EU and another central terminology at LTE, this is not intended to be limiting; the techniques described here can be used in other wireless networks, such as GPS, EDGE, GPRS, CDMA, WiMAX, Ev-DO, and others. The EU MTC 100 may be configured to detect a plurality of wireless cells 102. In various embodiments, each wireless cell 102 may be provided by an evolved B-node ("eNB"). In various embodiments, the EU MTC 100 may be configured to detect eNB categories associated with individual wireless cells 102 of the plurality of wireless cells 102. The term "eNB category" as it is used here, may designate a type of service provided or not provided by an eNB. For example, some eNBs, for example, a first eNB 104 and a second eNB 106 in Fig. 1, may be configured to prohibit MTC traffic. An eNB can be configured in this way for a variety of reasons, such as for reserving eNB bandwidth for the traffic considered to have higher priority than MTC traffic.
    Some eNBs, such as a third eNB 108 in FIG. 1, may be provided to process primarily or exclusively MTC traffic. This can save "normal" eNB resources such as the first eNB 104 and second eNB 106 for other traffic. In various embodiments, a dedicated MTC eNB may be a "low cost" eNB, for example, for use in a plant or other environment having a large number of EU MTCs. This can reduce capital expenditure ("CAPEX") when introducing new MTC services. In various embodiments, a dedicated MTC eNB may broadcast an indication, for example, as part of an MTC node identifier, which is dedicated to MTC traffic.
    Still other eNBs, such as a fourth eNB 110 in FIG. 1, may be configured to support "normal" (eg, non-MTC) traffic, but also to support MTC traffic, or without qualification or in special circumstances (examples of which will be described here). Such an eNB 110 may be referred to herein as a "hybrid" eNB. In various embodiments, a hybrid eNB 110 may broadcast an indication, for example, as part of an MTC node identifier, that it accepts MTC traffic in some or all circumstances.
    In various embodiments, eNBs may be configured to broadcast or otherwise make available their categories and other information usable to join the cells they provide. In FIG. 2, for example, an eNB dedicated to MTC 108 is shown which broadcasts its category (dedicated to MTC). The EU MTC 100 may receive this broadcast category, along with the broadcast of categories by other eNBs (eg, 104, 106, 110, not shown in Figure 2).
    In various embodiments, upon detecting the plurality of wireless cells and their categories, the EU MTC 100 may be configured to identify one or more wireless cells of the plurality of detected wireless cells 102 on which the MTC traffic is allowed. In various embodiments, this identification may be based on the detected eNB categories associated with each wireless cell 102. In various embodiments, the MTC 100 EU may be configured to cross-check one or more wireless cells identified with respect to a list of eNBs dedicated to the MTC to which the MTC UE is allowed to connect. In various embodiments, the list of eNBs dedicated to the MTC can be obtained from an eNB, for example, using a NAS report.
    In various embodiments, a list of MTC-dedicated eNBs to which the MTC 100 UE is allowed to connect may be maintained, for example, by various entities at various locations. In some embodiments, the list may be maintained by EU MTC 10 0. In addition or alternatively, the list may be maintained by network entities and made available through the network. a stratum without access ("NAS") report. In various embodiments, the list may contain the MTC-dedicated eNBs that belong to a particular public land mobile network ("PLMN") identity. For example, the list can be a list of names of a closed subscriber group ("CSG"). The EU MTC 100 can select the most appropriate detected cell that is also contained in this list, for example, based on a cell selection criterion.
    Once the UE MTC 100 has matched the identified wireless cells 102 of the detected cells with the authorized MTC-dedicated cells in the list, in various embodiments, the EU MTC 100 can selectively join one of the cells without corresponding thread 102, for example, based on a cell selection criterion. An example of this is shown in Figure 2. In various embodiments, after a successful connection, the EU MTC may be configured to store the connection information to facilitate future connections and wireless cell selections.
    The cell selection criterion may be usable, for example, by EU MTC 100, to select from a plurality of candidate wireless cells, and may be in a variety of forms. In various embodiments, a cell selection criterion may be a signal strength of the identified wireless cell (s) 102. For example, the EU MTC 100 may determine that a third eNB 108 has a stronger signal than a cell provided by another dedicated MTC eNB (not shown), and can selectively join the wireless cell 102 provided by the third eNB 108 on that basis. Other cell selection criteria may include, but are not limited to, the available cell bandwidth, the number of retries before a timer expires, the type of connection, the ping return time, the eNB resources available, etc.
    There may be situations in which no identified eNB dedicated to the MTC is on the list, or in which no dedicated MTC eNB satisfies one or more cell selection criteria. In such cases, the EU MTC 100 can identify the wireless cell (s) 102 on which both MTC and non-MTC traffic is allowed (for example, as provided by the hybrid eNB 110). . For example, in FIG. 3, the hybrid eNB 110 may provide, for example, to the EU MTC 100, individually or as part of a broadcast, an MTC strategy that dictates the circumstances under which the MTC traffic is and is not allowed on a wireless cell 102 provided by the hybrid eNB 110. Based on this strategy and similar MTC strategies associated with other hybrid eNBs, the EU MTC can identify which of these hybrid eNBs the where appropriate, EU MTC 100 would be allowed to join given its current circumstances.
    In various embodiments, the TCM strategy may be provided by hybrid eNB 110 using a dedicated UE signaling (eg, NAS). In various embodiments, this MTC strategy may be included in the broadcast eNB category information shown in Figure 2. An MTC policy may also be provided to the EU MTCs in other ways. For example, in some embodiments, the Open Mobile Alliance Device Management Protocol ("OMA-DM") can be used to configure the EU MTC 100 with one or more MTC policies.
    The MTC strategy may indicate the circumstances under which MTC traffic is allowed on a wireless cell 102 provided by a hybrid eNB 110. For example, the EU MTC at or near a particular location, for example, within geo-location can be served, while EU MTCs at other locations can not be served. As another example, EU TCMs of one type may be served, while EU TCMs of another type can not. As illustrated in FIG. 3, the EU MTC 100 can use this strategy, together with various EU MTE attributes such as its location (for example, based on global positioning system coordinates, or "GPS") or its type, to determine whether the hybrid eNB 110 will allow MTC traffic to / from the UE 100 MTC on the wireless cell 102. Next, the EU MTC 100 can select and join a particular eNB based on the criteria of cell selection.
    An EU may experience downtime during which it neither transmits nor receives communications. In some cases, such a UE may go into an "idle" mode, for example, to save energy and / or computing resources or network. However, ") an EU can move while in idle mode In order to maintain a sufficient wireless connection, an idle" normal "UE (for example, a cellular telephone) may, for example, in accordance with the specification Third Generation Partnership Project ("3GPP") Technical Specification ("TS") 3 6.3 04, periodically search for "authorized cells" to which it can connect in the event that the wireless cell serving it is no longer the best option For example, an inactive EU can use a CSG name list that identifies the cells to which the EU is allowed to connect (for example, cells provided by a particular wireless carrier or belonging to a particular PLMN identity). .
    Similar to "normal" EU, inactive EU MTCs can periodically search for authorized cells that support or are provided by eNBs dedicated to MTC. If more than one allowed cell that is provided by a dedicated MTC eNB is found, then the EU can classify the cells by cell selection criteria. If no authorized cells provided by TCM-dedicated eNBs are found (or satisfy the cell selection criteria), then the inactive EU can go into a "residence in any cell" state in which it seeks more summarily authorized cells (for example, a CSG) provided by hybrid eNBs that allow the MTC traffic at the same time as another traffic.
    For example, in various embodiments, while in an inactive radio resource control ("RRC") mode, the ECU 100 may be configured to periodically detect another plurality of wireless cells 102, for example, which may be different from a plurality of wireless cells 102 detected when the ECU 100 last joined a wireless cell 102. Similar to the case where it would first join a wireless cell 102, The ECU 100 may be configured to detect eNB categories associated with individual wireless cells of the other plurality of wireless cells, and to identify one or more wireless cells of the other plurality of wireless cells. detected on which MTC traffic is allowed based on the associated eNB categories. In various embodiments, the UE MTC 100 may be configured to selectively initiate a handover procedure of a wireless cell 102 that the EU MTC has already reached to another wireless cell 102 of the wireless cell (s). identified on the basis of a cell selection criterion.
    Referring now to FIG. 4, there is shown an example of method 400 that can be implemented by an EU MTC such as the UE MTC 100 in FIG. 1, according to various embodiments. At block 402, the MTC UE may detect a plurality of wireless cells (e.g., 102 in FIG. 1), each provided by an eNB (e.g., 104 to 110 in FIG. 1). At block 404, the EU MTC can detect the eNB categories associated with individual wireless cells of the plurality of wireless cells.
    In block 406, the EU MTC may identify one or more wireless cells of the plurality of detected wireless cells on which MTC traffic is allowed, for example, based on the associated eNB categories. At block 408, the UE MTC may cross-check the identified wireless cell (s) against a list of MTC-dedicated eNBs to which the EU MTC is allowed to connect (e.g. , a CSG stored in the memory of the EU MTC 100 or kept up to date on the NAS). If, at block 408, one or more corresponding wireless cells are found, then, at block 410, the EU MTC can selectively join the most appropriate wireless cells provided by a dedicated MTC eNB based on a criterion of cell selection.
    However, if at block 408, no corresponding wireless cell is found on the list, then at block 412, the MTC UE may selectively join a wireless cell provided by a hybrid eNB (e.g. 110 in FIG. ) that will allow both MTC and non-MTC traffic, for example, based on cell selection criteria. In various embodiments, this selective join may be based on a hybrid eNB MTC strategy that identifies a circumstance in which the hybrid eNB will allow MTC traffic. As noted above, a hybrid eNB can make the MTC strategy available in a variety of ways, such as via a NAS report (in some cases with eNB categories).
    Referring now to Figure 5, there is shown an example of method 500 that can be implemented by an eNB (e.g., 104 to 110) according to various embodiments. Various process operations 500 may be added or omitted depending on whether the method implemented by eNB 500 is a dedicated MTC eNB (e.g., 108), a hybrid eNB (e.g., 110) or an eNB that does not allow MTC traffic (for example, 104, 106).
    In block 502, eNB can provide a wireless cell, such as one of the wireless cells 102 shown in FIG. 1. At block 504, eNB can provide, for example, to the EU MTC 100 (which may have detected the wireless cell 102 provided by the eNB), a category of MTC generally indicating whether MTC traffic is allowed on the wireless cell provided by the eNB. If the eNB is a member of a category of MTC that prohibits MTC traffic (eg, 104, 106), then the EU MTC 100 can not communicate further with the eNB, and the method 500 may terminate. . If 11 eNB is a dedicated MTC eNB (e.g., 108), then the EU MTC 100 can join the wireless cell provided by the eNB, or another wireless cell provided by another eNB dedicated to MTC, on based on the cell selection criteria of the US TCM 500.
    If the eNB is a hybrid eNB (e.g., 110), at block 506, the eNB can provide, for example, to the MTC 100 EU, an MTC strategy that identifies a circumstance in which the eNB will allow traffic. MTC. As noted above, the MTC strategy may indicate that eNB will serve EU MTCs that are located at or near a particular location, for example, within a geo-location, or that it will serve the EU MTCs. of a particular type. In various embodiments, the MTC category and / or the MTC strategy can be provided to the EU MTC 100 using NAS signaling. At block 508, the evolved Node B may selectively serve the UE MTC 100 based on the MTC strategy.
    In various embodiments, at block 510, the eNB may be configured to determine that a portion of a network, to which the eNB is connected, is overloaded. For example, the eNB can determine that its wireless cell is overloaded with network traffic, for example, because of its traffic density exceeding a predetermined threshold. In such a case, at block 512, the eNB may be configured to release one or more EU MTCs, for example, using a RRCConnectionRelease message with a specific RRC release flag. In various embodiments, the RRC release flag may cause the EU MTC (s) to transition to a state in which the EU MTCs are disconnected from the network without re-registration. In various embodiments, the RRC release flag may cause the EU MTC (s) to go into an idle mode. In various embodiments, the RRC release flag may redirect the EU MTCs to another eNB.
    In various embodiments, other components in a network, other than eNBs, may be dedicated to MTC communications, for example, to contain MTC traffic and to save network resources of non-MTC components for non-MTC traffic. An example of an entity that can take a form dedicated to MTC is a mobility management entity ("MME").
    For example, in FIG. 1, there are two "normal" MMEs 112 that are not specifically dedicated to MTC traffic and a MME dedicated to MTC 114. The dedicated eNB for MTC 108 and the hybrid eNB 110 can be configured to select the dedicated MTC 114 MME for use where possible, but may also use a non-MTC 112 MME as needed (for example, if the MTC 114 dedicated MME is down or overloaded). In various embodiments, similar to the dedicated MTC 108 eNB, the MTC 114 dedicated MME may be a "low cost" MME, for example, which could be configured in a plant or other environment having a large number of EU MTC. This can further reduce capital expenditures when introducing new MTC services. It is to be understood that the configuration of MME and eNB illustrated in Fig. 1 is for purposes of illustration, and that any other configuration or arrangement of MME and eNB is contemplated.
    FIG. 6 shows an example of a method 60 that can be implemented by various eNBs, such as the eNB dedicated to MTC 108 and the hybrid eNB 110, to use an MME dedicated to MTC. In block 602, the eNB can detect a plurality of mobility management entities ("MMEs"). In block 604, eNB can detect MME categories associated with individual MMEs of the plurality of MMEs. For example, MMEs can provide their individual MS categories via an IS interface.
    In block 606, eNB can identify one or more of the plurality of detected MMEs dedicated to MTC traffic based on the associated MME categories. For example, the hybrid eNB 110 in FIG. 1 can identify the MME dedicated to MTC 114. At block 608, the eNB can select an MME of the at least one MME identified in block 606, based on a selection criterion. from Mrs. If there was only one MME MTC identified in block 606, then eNB can simply use this MME.
    Fig. 7 illustrates an exemplary computing device 700 in accordance with various embodiments. The EU MTC 100 of any of the eNBs (e.g. 104 to 110) described herein may be implemented on a computing device such as the computing device 700. The computing device 700 may include a number of components, one or more processor (s) 704 and at least one communication chip 706. In various embodiments, the processor (s) 704 may each be a processor core. In various embodiments, at least one communication chip 706 may also be physically and electrically coupled to the processor (s) 704. In other implementations, the communication chip 706 may be part of the processor (s) In various embodiments, the computing device 700 may include a printed circuit board ("circuit board") 702. For these embodiments, the at least one processor 704 and the communication chip 706 may be disposed thereon. In alternative embodiments, the various components can be coupled without using an electronic card 702.
    Depending on its applications, the computing device 700 may include other components that may or may not be physically and electrically coupled to the electronic card 702. These other components include, but are not limited to, volatile memory (e.g. a dynamic random access memory 708, also called "DRAM"), a non-volatile memory (for example, a read-only memory 710, also called "ROM"), a flash memory 712, an input / output controller 714, a memory processor digital signal (not shown), an encryption processor (not shown), a graphics processor 716, one or more antennas 718, a display (not shown), a touch screen display 720, a touch screen controller 722, a battery 724, an audio codec (not shown), a video codec (not shown), a global positioning system ("GPS") device 728, a compass 730, an accelerometer (not shown), a gyro scope (not shown), a 732 speaker, a 734 camera, one or more other sensors 736 (for example, a barometer, a Geiger counter, a thermometer, viscometers, rheometers, altimeters, or other sensors, for example, as might be encountered in various manufacturing environments or use in other applications), or a mass storage device (such as a hard disk drive, a semiconductor reader, a compact disc ("CD"), a DVD player ("DVD") (not shown), etc. In various embodiments, the processor 704 may be integrated on the same array with other components to form a system chip ("SoC").
    In various embodiments, volatile memory (e.g., DRAM 708), non-volatile memory (e.g., ROM 710), flash memory 712, and mass storage device may include configured programming instructions. to enable the computing device 700, in response to execution by one or more processors 704, to practice all or selected aspects of the data exchanges shown in FIGS. 2 and 3, or methods 400, 500 or 600 , depending on the computing device 700 that is used for the implementation. More specifically, one or more memory components such as volatile memory (e.g., DRAM 708), non-volatile memory (e.g., ROM 710), flash memory 712, and mass storage device may include temporary and / or persistent copies of instructions which, when executed by one or more processors 704, allow the computing device 700 to operate one or more modules 738 configured to practice all or aspects. selected data exchanges shown in Figures 2 and 3, or 400, 500 or 600, depending on the computer device 700 that is used for implementation.
    The communication chips 706 may activate the wired and / or wireless communications for data transfer to and from the computing device 700. The term "wireless" and its derivatives may be used to describe circuits, devices, systems, methods, techniques, communication channels, etc. that can communicate data using modulated electromagnetic radiation through a non-solid medium. The term does not imply that the associated devices contain no thread, although in some embodiments there may be none. The communication chip 706 can implement any one of a number of wireless standards or protocols, including but not limited to IEEE 702.20, General Packet Radio Service ("GPRS" optimized evolution ("Ev-DO"), high-speed packet-based enhanced access ("HSPA +"), advanced high-speed downlink packet access ("HSDPA +"), enhanced high-speed uplink packet access ("HSUPA +"), global system for mobile communications ("GSM"), enhanced data rates for GSM evolution ("EDGE"), code division multiple access ("CDMA"), time division multiple access (" TDMA "), enhanced digital wireless telecommunications (" DECT "), Bluetooth, their derivatives, as well as any other wireless protocols that are designated as 3G, 4G, 5G, and beyond. Computer device 700 may include a plurality of communication chips 706. For example, a first communication chip 706 may be dedicated to shorter range wireless communications, such as Wi-Fi and Bluetooth, and a second communication chip 706 may be dedicated to longer-range wireless communications, such as GPS, EDGE, GPRS, CDMA, WiMAX, LTE, Ev-DO, and others.
    In various implementations, the computer device 700 can be a laptop, a mini-laptop, a notebook, an ultrabook, a smartphone, a tablet, an individual digital assistant ("PDA"), a PC ultra -mobile, mobile phone, desktop, server, printer, scanner, monitor, set-top box, entertainment controller (eg, game console), digital camera, player portable music, or a digital video recorder. In still other implementations, the computing device 700 may be any other electronic device that processes data.
    Apparatus embodiments, packages, computer implemented methods, systems, devices, and computer readable media (transient and non-transient) are described herein for selectively connecting wireless cells by an EU MTC. In various embodiments, a plurality of wireless cells can be detected, each provided by an eNB. In various embodiments, the eNB categories associated with individual wireless cells of the plurality of wireless cells can be detected. In various embodiments, one or more wireless cells of the plurality of detected wireless cells on which MTC traffic is allowed may be identified based on the associated eNB categories. In various embodiments, an EU MTC may selectively join a wireless cell of the identified wireless cell (s) based on a cell selection criterion.
    In various embodiments, the EU MTC can obtain, for example, eNB when detecting a network overload, an instruction to switch from a connected mode to an inactive or disconnected mode, and to release a connection to the NBB and redirect the subsequent communications via another eNB.
    In various embodiments, a list of dedicated MTC eNBs to which the EU MTC is allowed to connect may be cross-checked against the identified wireless cells. In various embodiments, the MTC UE may selectively join the wireless cell further based on a result of cross-checking. In various embodiments, the list of eNBs dedicated to the MTC can be obtained from an eNB and / or via a NAS report.
    In various embodiments, it can be determined that none of the MTC-dedicated eNBs on the list are able to serve the EU MTC. In various embodiments, an eNB that serves both MTC and non-MTC traffic can be identified, for example, based on an eNB MTC strategy that identifies a circumstance in which eNB will allow MTC traffic. . In various embodiments, the MTC policy may be provided by an eNB or configured on the EU MTC using an OMA-DM configuration. In various embodiments, the circumstance included in the MTC strategy may include the EU MTC that is at or near a predefined location, within a geo-location or a particular type of EU MTC.
    In various embodiments, the cell selection criterion may include a signal strength of the identified wireless cell (s) or the expiration of a retry counter. In various embodiments, the EU MTC can be switched from a connected mode to an inactive mode. In various embodiments, while in idle mode, the MTC UE may periodically detect another plurality of wireless cells, each provided by an eNB. In various embodiments, the eNB categories associated with individual wireless cells of the other plurality of wireless cells can be detected. In various embodiments, one or more wireless cells of the other plurality of detected wireless cells on which MTC traffic is allowed can be identified based on the associated eNB categories. In various embodiments, a wireless cell transfer procedure to which UE MTC has previously selectively joined another wireless cell of the identified one or more wireless cells of the other plurality of cells without detected leads can be selectively primed based on the cell selection criterion.
    In various embodiments, an eNB may be configured to provide a wireless cell. In various embodiments, the NBE may be configured to provide, to an EU MTC that detects the wireless cell, an MTC strategy that identifies a circumstance in which the NBE will allow MTC traffic. In various embodiments, the NBB may be configured to selectively serve the EU MTC based on the MTC strategy. In various embodiments, the eNB may be configured to provide the MTC strategy to the UE MTC using a dedicated EU signaling.
    In various embodiments, the NBB may be configured to release the EU MTC in response to a determination that a portion of a network to which the NBB is connected is overloaded. In various embodiments, the release may include a transition from the EU MTC to an inactive or disconnected mode, and / or redirection to a new eNB. In various embodiments, the portion of the network may be the wireless cell provided by the NBE.
    In various embodiments, the NBB may be configured to detect a plurality of MMEs. In various embodiments, the NBE may be configured to detect MME categories associated with individual MMEs of the plurality of MMEs. In various embodiments, the NBE may be configured to identify one or more of the plurality of detected MMEs dedicated to MTC traffic based on the associated MME categories. In various embodiments, the eNB may be configured to select an MME from the one or more identified MMEs based on an MME selection criterion. In various embodiments, the MME categories can be detected on one or more SI interfaces.
    Although some embodiments have been illustrated and described herein for purposes of description, this application is intended to cover any adaptations or variations of the embodiments discussed herein. For this reason, it is clearly intended that the embodiments described herein be limited only by the claims.
    When the description cites "a" or "a first" element or its equivalent, such a description includes one or more such elements, by not requiring or excluding two or more such elements. In addition, ordinal indicators (eg, first, second or third) for identified elements are used to distinguish between elements, and do not indicate or imply a mandatory or limited number of such elements, and do not indicate a particular position or order of such elements, unless specifically indicated otherwise. Legend of figures - Fig- 1
    Fig- 2
    Fig. 3.
    Fig. 4
    Fig. 5
    Fig. 6
    Fig. 7
    权利要求:
    Claims (20)
    [1]
    CLAIMS 1. - Evolved Node B (eNB) comprising: a first circuit for connecting a plurality of mobility management entities ("MMEs"); and. a second circuit, coupled with the first circuit, for determining a first of the plurality of MMES which is dedicated to the management of the network traffic associated with a first priority level, less than a second level of priority associated with the other network traffic, and to select the first MME for user equipment ("UE") based on an indication that the UE is generating network traffic associated with the first priority level.
    [2]
    2. The eNB according to claim 1, wherein the second circuit is to determine the first MME which is dedicated to managing the network traffic associated with the first priority level based on a communication received by the NBE via an SI interface.
    [3]
    The eNB of claim 1, wherein the network traffic associated with the first priority level is Machine Type Communication ("MTC") traffic.
    [4]
    4. The eNB according to claim 1, wherein the eNB is to receive a communication from the UE which includes the indication.
    [5]
    The eNB of claim 1, further comprising: a third circuit, coupled with the second circuit, for providing a wireless cell for use as a user equipment ("UE").
    [6]
    6. The eNB according to claim 5, in. which the third circuit is to send to the UE a 'Strare ·' message of '' "Non-Access T'NA'S ''" "to reject an EU request based on a determination of the overload of the first MS.
    [7]
    7. The eNB according to claim 5, wherein the third-rouit is to provide the EU with an MTC policy which identifies a circumstance that the eNB is to allow MTC traffic.
    [8]
    8. The eNB according to claim 7, wherein the circumstance comprises at least one of the UE being at or near a predefined location, within a geographical boundary, or being of a particular type of EU.
    [9]
    The system according to claim 1, further comprising: a system on a chip ("SoC") including: a processor; and a communication chip, wherein the first circuit and the second circuit are integrated in at least one of the processor or the communication chip.
    [10]
    . An advanced node B (eNB) comprising: a first circuit for connecting a plurality of mobility management entities ("MMEs"); and a second circuit, coupled with the first circuit, for determining a first MME of the plurality of MMEs which is dedicated to the management of Machine Type Communication ("MTC") traffic, and for selecting the first MME dedicated to the management Machine Type Communication ("MTC") traffic for user equipment ("UE") based on an indication that the UE is generating MTC traffic.
    [11]
    11. According to claim 10, in which the second circuit is to determine the first MME which is dedicated to the management of the MTC traffic based on a communication received by the eNB via an interface SI.
    [12]
    The method of claim 10, further comprising: a third circuit, coupled with the second circuit, for providing a wireless cell as user equipment ("UE").
    [13]
    13. The eNB according to claim 12, wherein the third object is to reject, using the Non-Access Stratum ("NAS"), a request from the UE based on the network traffic from another UE that is not associated with the MTC.
    [14]
    The eNB according to claim 12, wherein the third circuit is to provide the UE with an MTC policy which identifies a circumstance that the eNB is to allow MTC traffic.
    [15]
    15. The eNB according to claim 14, wherein the circumstance comprises at least one of the UE being at or near a location, within a geographical boundary, or being a particular type of EU.
    [16]
    The eNB of claim 10, further comprising: a system on a chip ("SoC") including: a processor; and a communication chip, wherein the first circuit and the second circuit are integrated in at least one of the processor or the communication chip.
    [17]
    17. - One or more computer-readable non-transitory media comprising instructions executable by a computing device, in which the "instructions", in response "to the execution by an evolved node B (" eNB "), leads to The NBB to: determine a Mobility Management Entity ("MME") to be associated with a Machine Type Communication Category ("MTC"); determine the network traffic received from a user equipment to "" be a traffic "MTC and associate the UE with the MME based on the · determination that the MME is associated with a · category of MTC communication and TCM traffic from the EU.
    [18]
    18. The one or more computer-readable non-transitory medium of claim 17, wherein the determination that the MME is associated with an MTC communication category is based on a communication received by the NBI via an IS interface.
    [19]
    19. The one or more computer-readable non-transitory medium according to claim 17, wherein the instructions further cause the eNB to: send to the UE a Non-Access Stratum message ("NAS ") to reject a request from the EU based on the determination that the MME is overloaded.
    [20]
    20. The one or more computer-readable non-transitory medium according to claim 17, wherein the instructions further cause the eNB to: provide the UE with a TCM policy which identifies a circumstance that the eNB is to allow the 'traffic' MTC.
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    US9356724B2|2016-05-31|
    US20150365937A1|2015-12-17|
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    法律状态:
    2021-01-15| PD| Change of ownership|Owner name: APPLE INC.; US Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), CESSION Effective date: 20200429 |
    优先权:
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    US201261646223P| true| 2012-05-11|2012-05-11|
    US61/646223|2012-05-11|
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