WO2020064095A1 - Commande de radiomessagerie dans un scénario de réseau non homogène - Google Patents

Commande de radiomessagerie dans un scénario de réseau non homogène Download PDF

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Publication number
WO2020064095A1
WO2020064095A1 PCT/EP2018/076097 EP2018076097W WO2020064095A1 WO 2020064095 A1 WO2020064095 A1 WO 2020064095A1 EP 2018076097 W EP2018076097 W EP 2018076097W WO 2020064095 A1 WO2020064095 A1 WO 2020064095A1
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function
communication
network
capability
specific
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PCT/EP2018/076097
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English (en)
Inventor
Muhammad NASEER-UI-ISLAM
Ahmad AWADA
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Nokia Technologies Oy
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Priority to PCT/EP2018/076097 priority Critical patent/WO2020064095A1/fr
Publication of WO2020064095A1 publication Critical patent/WO2020064095A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • 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
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • 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
    • H04W68/08—User notification, e.g. alerting and paging, for incoming communication, change of service or the like using multi-step notification by increasing the notification area

Definitions

  • Examples of embodiments relate to apparatuses, methods, systems, computer programs, computer program products and (non-transitory) computer-readable media usable for conducting paging in a communication connection control of a communication element or function, such as a UE, being in a non-homogenous network environment, and in particular to apparatuses, methods, systems, computer programs, computer program products and (non-transitory) computer-readable media usable for controlling a paging procedure and a further communication control of a communication connection of a communication element or function located in a non-homogenous network when the involved network areas such as cells have differing communication capabilities or functions.
  • E-UTRAN evolved UMTS terrestrial radio access network eMBB enhanced mobile broadband
  • an apparatus for use by a communication network control element or function configured to control a paging procedure to a communication element or function comprising at least one processing circuitry, and at least one memory for storing instructions to be executed by the processing circuitry, wherein the at least one memory and the instructions are configured to, with the at least one processing circuitry, cause the apparatus at least: to determine that a communication element or function configured to use a specific communication capability or function is located in a first network area of a communication network, wherein the first network area does not provide the specific communication capability or function, to receive and process an incoming request for establishing a communication connection to the communication element or function, wherein the requested communication connection is based on the usage of the specific communication capability or function, to determine whether an extended paging condition is fulfilled by the communication element or function, and in case the extended paging condition is fulfilled, and to cause forwarding of a paging message to the communication element or function and to trigger an enhanced communication establishment procedure for supporting establishment of the
  • a method for use in a communication network control element or function configured to control a paging procedure to a communication element or function comprising determining that a communication element or function configured to use a specific communication capability or function is located in a first network area of a communication network, wherein the first network area does not provide the specific communication capability or function, receiving and processing an incoming request for establishing a communication connection to the communication element or function, wherein the requested communication connection is based on the usage of the specific communication capability orfunction, determining whether an extended paging condition is fulfilled by the communication element or function, and in case the extended paging condition is fulfilled, causing forwarding of a paging message to the communication element or function and to trigger an enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication capability or function by involving a neighboring network area which provides the specific communication capability or function.
  • these examples may include one or more of the following features:
  • the communication element or function may be determined that the communication element or function is located in a first network area of a communication network by receiving and processing one of a location update signaling from the communication element or function when the communication element or function changes the location from a second network area which provides the specific communication capability or function and enters the first network area and an attachment signaling when the communication element or function activates a connection to the communication network when being in the first network area, or it may be determined that the communication element or function is located in another network area of the communication network which does not provide the specific communication capability or function and is different to the first network area by receiving and processing a location update signaling from the communication element or function when the communication element or function changes the location from a first network area and enters the other network area, wherein in this case the extended paging condition is determined to be not fulfilled by the communication element or function;
  • the extended paging condition may comprise at least one of that the communication element or function is located within a predetermined communication capability border region defining a specific tracking area including one or more network areas which do not provide the specific communication capability or function but which are adjacent to at least one network area providing the specific communication capability or function, that the communication element or function is located within one of a preset list of network areas set in advance as network areas in which the extended paging condition is met, and that a preset timer being started when it is determined that the communication element or function is located in a first network area has not expired;
  • the enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication capability or function may include at least one of conducting a switched mode for providing service continuity for the communication element orfunction using the specific communication capability or function by starting a dual or multi connectivity communication, wherein the switched mode involves that at least one split or switched bearer is established to the communication element or function by a first communication network control element or function of the first network area via which the communication element or function communicates with the network, and data traffic for the continued service using the specific communication capability or function is transmitted to or from the communication element or function from or to a second communication network control element or function of the neighboring network area providing the specific communication capability or function via the first communication network control element or function using the at least one split or switched bearer, and setting the communication element or function into a communication capability search mode in which a handover of the communication element or function from the first network area to a network area providing the communication capability or function is accelerated; - in case the extended paging condition is not fulfilled, forwarding of the paging message to the switched
  • the apparatus may be included in a paging agent network element or function of the communication network which is part of a core network element or function or of an access network control element or function.
  • an apparatus for use by a communication element or function configured to use a specific communication capability or function in a communication connection comprising at least one processing circuitry, and at least one memory for storing instructions to be executed by the processing circuitry, wherein the at least one memory and the instructions are configured to, with the at least one processing circuitry, cause the apparatus at least: to provide, to a paging agent network element or function, information indicating that the communication element or function is located in a first network area of a communication network, wherein the first network area does not provide the specific communication capability or function, to receive and process a paging message indicating an incoming request for establishing a communication connection to the communication element or function, wherein the requested communication connection is based on the usage of the specific communication capability or function, and to start an enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication capability or function by involving a neighboring network area which provides the specific communication capability or function.
  • a method for use in a communication element or function configured to use a specific communication capability or function in a communication connection comprising providing, to a paging agent network element or function, information indicating that the communication element or function is located in a first network area of a communication network, wherein the first network area does not provide the specific communication capability or function, receiving and processing a paging message indicating an incoming request for establishing a communication connection to the communication element or function, wherein the requested communication connection is based on the usage of the specific communication capability or function, and starting an enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication capability or function by involving a neighboring network area which provides the specific communication capability or function.
  • these examples may include one or more of the following features:
  • the information indicating that the communication element or function is located in a first network area of a communication network may be provided by one of causing sending of a location update signaling to the paging agent network element or function when the communication element or function changes the location from a second network area which provides the specific communication capability orfunction and enters the first network area, and causing sending an attachment signaling when the communication element orfunction activates a connection to the communication network when being in the first network area, or information indicating that the communication element or function is located in another network area of the communication network which does not provide the specific communication capability or function and is different to the first network area may be provided by causing sending of a location update signaling to the paging agent network element or function when the communication element or function changes the location from a first network area and enters the other network area;
  • the communication element or function may be in one of an idle connection state, an inactive connection state or a connected state in which the specific communication capability or function is not used when receiving the paging message;
  • the enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication capability or function may include at least one of conducting a switched mode for providing service continuity for the communication element orfunction using the specific communication capability or function by starting a dual or multi connectivity communication, wherein the switched mode involves that at least one split or switched bearer is established to the communication element or function from a first communication network control element or function of the first network area via which the communication element or function communicates with the network, and data traffic for the continued service using the specific communication capability or function is transmitted to or from the communication element or function from or to a second communication network control element or function of the neighboring network area providing the specific communication capability or function via the first communication network control element or function using the at least one split or switched bearer, and setting the communication element or function into a communication capability search mode in which a handover of the communication element or function from the first network area to a network area providing the communication capability or function is accelerated;
  • a connection establishment request may be transmitted to the first communication network control element orfunction of the first network area including an indication that a split or switched bearer is to be established to the communication network control element or function of the neighboring network area, and a communication using the specific communication capability orfunction via the first communication network control element orfunction may be conducted;
  • an apparatus for use by a communication network control element or function configured to control a first network area of a communication network comprising at least one processing circuitry, and at least one memory for storing instructions to be executed by the processing circuitry, wherein the at least one memory and the instructions are configured to, with the at least one processing circuitry, cause the apparatus at least: to receive and process a request for establishing a communication connection from a communication element, wherein the communication connection is using a specific communication capability or function and the first network area does not provide the specific communication capability or function, and to conduct an enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication capability or function by involving a neighboring network area which provides the specific communication capability or function.
  • a method for use in a communication network control element or function configured to control a first network area of a communication network comprising receiving and processing a request for establishing a communication connection from a communication element, wherein the communication connection is using a specific communication capability or function and the first network area does not provide the specific communication capability or function, and conducting an enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication capability or function by involving a neighboring network area which provides the specific communication capability or function.
  • these examples may include one or more of the following features:
  • the enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication capability or function may include at least one of conducting a switched mode for providing service continuity for the communication element orfunction using the specific communication capability or function by starting a dual or multi connectivity communication, wherein the switched mode involves that at least one split or switched bearer is established to the communication element or function from the communication network control element or function of the first network area via which the communication element or function communicates with the network, and data traffic for the continued service using the specific communication capability or function is transmitted to or from the communication element or function from or to a second communication network control element or function of the neighboring network area providing the specific communication capability or function via the first communication network control element or function using the at least one split or switched bearer, and setting the communication element or function into a communication capability search mode in which a handover of the communication element or function from the first network area to a network area providing the communication capability or function is accelerated;
  • a connection establishment request may be received from the communication element or function including an indication that a split or switched bearer is to be established to the communication network control element or function of the neighboring network area, an establishment of a dual or multi connectivity communication with the communication network control element or function of the neighboring network area which provides the specific communication capability or function may be conducted, and data may be transferred between the communication element or function and the communication network control element or function of the neighboring network when the communication using the specific communication capability or function is conducted;
  • a computer program product for a computer including software code portions for performing the steps of the above defined methods, when said product is run on the computer.
  • the computer program product may include a computer-readable medium on which said software code portions are stored.
  • the computer program product may be directly loadable into the internal memory of the computer and/or transmittable via a network by means of at least one of upload, download and push procedures.
  • Fig. 1 shows a diagram illustrating an example of a non-homogenous network scenario
  • Fig. 2 shows a diagram illustrating a further example of a non-homogenous network scenario for explaining examples of embodiments
  • Fig. 3 shows a signaling diagram for explaining a paging control procedure according to some examples of embodiments
  • Fig. 4 shows a signaling diagram for explaining a paging control procedure according to some examples of embodiments
  • Fig. 5 shows a signaling diagram for explaining a paging control procedure according to some examples of embodiments
  • Fig. 6 shows a flow chart of a processing executed by a communication network control element or function acting as a paging agent according to some examples of embodiments
  • Fig. 7 shows a flow chart of a processing executed by a communication element or function like a UE according to some examples of embodiments
  • Fig. 8 shows a flow chart of a processing executed by a communication network control element or function like a serving BS or gNB according to some examples of embodiments
  • Fig. 9 shows a diagram of a network element or function representing a communication network control element or function acting as a paging agent according to some examples of embodiments;
  • Fig. 10 shows a diagram of a network element or function representing a communication element or function like a UE according to some examples of embodiments.
  • Fig. 1 1 shows a diagram of a network element or function representing a communication network control element or function like a serving BS or gNB according to some examples of embodiments.
  • communication networks e.g. of wire based communication networks, such as the Integrated Services Digital Network (ISDN), Digital Subscriber Line (DSL), or wireless communication networks, such as the cdma2000 (code division multiple access) system, cellular 3 rd generation (3G) like the Universal Mobile Telecommunications System (UMTS), fourth generation (4G) communication networks or enhanced communication networks based e.g.
  • ISDN Integrated Services Digital Network
  • DSL Digital Subscriber Line
  • wireless communication networks such as the cdma2000 (code division multiple access) system, cellular 3 rd generation (3G) like the Universal Mobile Telecommunications System (UMTS), fourth generation (4G) communication networks or enhanced communication networks based e.g.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution-Advanced
  • 5G fifth generation
  • 2G cellular 2 nd generation
  • GSM Global System for Mobile communications
  • GPRS General Packet Radio System
  • EDGE Enhanced Data Rates for Global Evolution
  • WLAN Wireless Local Area Network
  • WiMAX Worldwide Interoperability for Microwave Access
  • ETSI European Telecommunications Standards Institute
  • 3GPP 3 rd Generation Partnership Project
  • Telecoms & Internet converged Services & Protocols for Advanced Networks TISPAN
  • ITU International Telecommunication Union
  • 3GPP2 3 rd Generation Partnership Project 2
  • IETF Internet Engineering Task Force
  • IEEE Institute of Electrical and Electronics Engineers
  • a communication between two or more end points e.g. communication stations or elements, such as terminal devices, user equipments (UEs), or other communication network elements, a database, a server, host etc.
  • one or more network elements or functions e.g. virtualized network functions
  • communication network control elements or functions for example access network elements like access points, radio base stations, relay stations, eNBs, gNBs etc.
  • core network elements or functions for example control nodes, support nodes, service nodes, gateways, user plane functions, access and mobility functions etc., may be involved, which may belong to one communication network system or different communication network systems.
  • Network slicing is an example of a specific communication capability or function and forms so-called slices (i.e. communication capabilities) which allow a network operator to provide dedicated (virtual) networks with functionality specific to a service or customer over a common network infrastructure. This allows to support numerous and varied services envisaged e.g. in 5G and future systems, such as URLLC, eMBB etc.
  • slices i.e. communication capabilities
  • network slicing allows multiple virtual networks to be created on top of a common shared physical infrastructure.
  • the virtual networks are then customised to meet the specific needs of applications, services, devices, customers or operators.
  • a non-homogenous slice support i.e. certain network slices are not supported in all network areas.
  • network areas are respective cells which are controlled by a corresponding communication network control element or function, such as a gNB or eNB etc., wherein sizes and configurations of such network areas or cells are variable (e.g. cell sizes according to so-called macro cells, pico cells etc. are implementable).
  • Non-homogenous slice support may exist, for example, at a boundary of a restricted area where a slice or communication capability is supported, during an upgrade phase where cells are upgraded one by one with the new capability (e.g. slice support), when a network area or cell is entered which does not employ, for example, some dedicated features required for a service using the slice so that a resulting QoS is not completely in line with the slice’s demands, or at connections between the CN and RAN of a cell which does not support the slice (i.e. backhaul restrictions).
  • a cell irrespective of whether or not all features required for providing the slice in question are actually installed, is able to basically support the slice by its lower radio layers (e.g. by means of MAC scheduling). Nevertheless, it may happen that a cell cannot employ some dedicated features (e.g. for URLLC optimizations or the like), so that a QoS may not be completely in line with the slice’s demands. Furthermore, required connections between the CN and RAN of the cell not supporting the slice, may be or may not be available.
  • a network slice is identified via a specific information, such as a S-NSSAI.
  • a communication element or function such as a UE, can be connected and served by up to eight S-NSSAIs simultaneously, as per 3GPP Release 15, but there is basically no limit on the number of network slices that each cell may support. That is, a cell may support tens or even hundreds of S-NSSAIs.
  • An S-NSSAI includes, for example, a slice service type (SST) field and a slice differentiator (SD) field with a total length of 32 bits. It is also possible that the S-NSSAI includes only a SST field part in which case the length of the S-NSSAI is 8 bits only.
  • the SST field may have standardized and non-standardized values. Values 0 to 127 belong to the standardized SST range. For instance, an SST value of 1 indicates that the slice is suitable for handling of 5G eMBB, an SST value of 2 indicates handling of URLLC, etc. It is to be noted that the SD field is operator-defined.
  • MEC Mobility Control Entity
  • RNI Radio Network Information
  • MEC technology allows running contents and applications at RAN level, leveraging radio parameters referred to as Radio Network Information (RNI), and avoiding the long path usually experienced by the traffic when going through the Internet towards an applications server and back to the other end.
  • RNI Radio Network Information
  • it can also implement effective local caching strategies, local breakout, or artificial intelligence for those applications intended to run locally.
  • network areas or cells supporting (or providing) a specific network or communication capability or function such as MEC, a specific security scheme support, a slice support (referred to hereinafter also as“slice A”), and network areas or cells which do not support this specific network or communication capability or function, but other communication capabilities or functions offering another (possibly partially downgraded) service compared to the communication capability supporting cell (e.g. a default service or slice for a mobile network operator (MNO)).
  • MNO mobile network operator
  • Fig. 1 shows a diagram for illustrating the non-homogenous scenario indicated above. Specifically, a simplified network part is shown in which three network areas or cells are shown. It is to be noted that the number of cells to be considered for a non-homogenous network deployment is variable.
  • cell 21 controlled by BS or gNB 1 20 and cell 25 controlled by BS of gNB 3 24 are cells providing a specific communication capability or slice, as described above (also referred to as slice A).
  • a neighboring cell 23 controlled by BS or gNB 2 22 is a cell which does not provide this specific communication capability or function (e.g. MEC support) (or slice, e.g. slice A), so that a non-homogenous network scenario is present.
  • reference sign 30 denotes a core network CN of the communication network with which the gNBs 20, 22 and 24 are connected and which provides, for example, a link to other networks, such as the Internet.
  • the respective communication network control elements or functions i.e. a source and a target for a possible connection switch like a handover, or a first cell from which a UE being in an idle or inactive state changes location to a second cell, belong to different networks of the same type (e.g. cellular telecommunication networks) or different types (e.g. cellular communication network and WLAN or the like).
  • all cells 21 , 23, and 25 support a default communication capability or slice of the network operator, which is referred to hereinafter also as MNO slice.
  • MNO slice a default communication capability or slice of the network operator
  • a UE when a UE is using a specific communication capability (e.g. a service of slice A) (also referred to as a sA-UE), this sA-UE should move predominantly in network areas where the slice A can be provided, i.e. in cells 21 and 25 which support slice A. However, it cannot be fully avoided that a sA-UE will leave the network area where the slice A is available, i.e. that it leaves the cells 21 and 25 and enters (only) cell 23.
  • three UEs are shown, i.e. UE 1 10, UE 2 12 and UE 3 13 following different ways in the network (indicated by corresponding arrows).
  • a UE being a sA-UE (in Fig. 1 referred to as UE 4 14) is (re-)activated in a cell (i.e. cell 23) where the slice A services are not provided even though UE 4 14 is configured for slice A usage.
  • a cell i.e. cell 23
  • all four UEs shown in Fig. 1 are assumed to be sA-UEs, i.e. configured to use services of a specific communication capability or function (e.g. slice A) e.g. in cell 21 or cell 25.
  • the term“location change” etc. refers to a movement of a communication element or function (e.g. a UE) from one network area (i.e. a cell as shown in Fig. 1 ) to another cell, e.g. when the UE is in an inactive state or in an idle state.
  • a communication element or function e.g. a UE
  • examples described below are also applicable to a situation where a UE changing its location is in an active or connected state wherein the ongoing connection is using, for example, only default services or MNO slice services, as described above, also in cells 21 and 25, for example, i.e. where a communication connection using the specific communication capability or function (e.g. slice A) is not used or is inactive.
  • a“connection switching” or“switch of a communication connection” refers to various types of changes in the connection of a communication element or function (e.g. a UE) in the network. For example, a handover from a source cell to a target cell, an establishment or re-establishment of a communication connection to a cell (e.g. after losing contact to the network due to a RLF or the like), and a change of the connection type, e.g. from a single connectivity connection to a dual or multi connectivity connection involving a plurality of network areas or cells in the connection to the UE are related to a“connection switching” or the like in the following specification.
  • connection switching or“switch of a communication connection” is not related to the point of time where this switch (e.g. handover) is completed but to the time where such a switch is initiated or started, e.g. from the network in case of a handover or from the UE in case of a re-establishment procedure.
  • UE 1 10 leaves the cell 21 only very shortly before entering cell 25.
  • discontinuity of coverage providing the slice A service is only very short.
  • UE 2 12 is assumed to completely leave network area supporting the slice A (i.e. cell 21 ), but it returns later to cell 25.
  • discontinuity of coverage providing the slice A service is longer compared to UE 1 10.
  • UE 3 13 completely leaves the network area providing the slice A for a longer time. In this case, a return to a coverage providing the slice A service cannot be predicted.
  • UE 4 14 is assumed to start attachment to the network in cell 23 (i.e. without having access to a slice A coverage) but to change location to a cell (here e.g. cell 25) which provides slice A service.
  • the behavior of UE 4 14 is comparable to that of UE 2 12.
  • the communication network can use paging for contacting the UE, e.g. in case of an incoming call or data transfer attempt (e.g. from an external party). Paging is also used, for example, to notify a UE being in idle, inactive or connected state of system information changes and ETWS/CMAS indications.
  • the UE While being in an idle state, the UE monitors the paging channels for CN- initiated paging. In an inactive state, the UE also monitors paging channels for RAN- initiated paging. That is, a UE in idle state is paged by a core network entity, e.g. an access and mobility management function (AMF) or an MME, while a UE in inactive state may be also paged by the RAN, e.g. an anchor or serving gNB terminating the control plane/N2 connection of the UE.
  • AMF access and mobility management function
  • MME Mobility Management Entity
  • the UE identity used by CN to page a UE in idle or inactive state the is S-TMSI wherein IMSI is used only in some abnormal cases.
  • UEs in inactive state can be paged by the RAN using l-RNTI.
  • a network element or function such as a communication network control element or function of a CN or of a RAN which conducts a paging procedure according to examples of embodiments of the invention for paging a UE (i.e. which initiates a paging message to the UE) is referred to as a paging agent.
  • a paging agent comprise, for example, an AMF, MME or a BS (e.g. the anchor gNB).
  • the location changing UEs (UE 1 10, UE2 12 and UE 3 13) perform a cell re-selection when moving e.g. from cell 21 to cell 22.
  • the UEs also perform a location update, such as a registration update (RU).
  • a registration area list of tracking areas (TA)
  • TA network area
  • homogenous network support i.e. all network areas (cells) providing the same communication capability or function are comprised in a registration area).
  • TA is a collection of network areas (cells) wherein the paging agent knows the UE’s location with the granularity of these TA(s). With this approach the network does not have to page the UE in idle or inactive state for incoming calls in the whole network but can limit the paging to the TA(s) where the UE is currently present.
  • the paging agent After the RU, the paging agent knows the location of a UE and that the UE is e.g. outside of the network area or the network area coverage area which supports the specific communication capability or function (e.g. outside cell 21 or 25 supporting e.g. slice A). Conventionally, for any incoming call for the sA-UE which uses or is based on the communication capability or function, the paging agent has two options for paging.
  • a first option is to not forward the paging request to RAN (and hence to the UE being called) as it knows that the UE is outside of the communication capability supporting cells.
  • the UE 1 10 or the UE 2 12 in Fig. 1 because these UEs move out of the slice coverage area for only a short period of time, such a process in which the paging is restricted within this period, may lead to extended service breaks.
  • a user misses the incoming call/data transfer in particular when there is no immediate attempt for re-call.
  • a second option is to always forward the paging request and to decide later about the network slicing aspects in the RAN (i.e. as to whether the call can be handled or not).
  • this can lead to an unnecessary high signaling load and such to a resource wastage, especially in the case of UEs similar to UE 3 13.
  • These UEs are paged but ultimately no call is established because the cells cannot support the requested communication capability.
  • a network communication capability border i.e. the border between network areas (cells) providing the specific communication capability and network areas which do not provide the specific communication capability, such as the border between cells 21 and 25 on the one side and cell 23 on the other side in Fig. 1 , the situation becomes more complex.
  • the above described situation is not limited to a network slicing scenario (i.e. slice A), but a similar situation occurs also for other types of communication capability, such as MEC etc., where a UE temporarily goes out of the coverage of a network area or cell that support those features, e.g. due to a mismatch between network planning and the actual radio coverage.
  • neighboring network area is related, for example, to a situation where network areas or cells supporting a specific communication capability or function (e.g. cells 21 and 25 in Fig. 1 ) and network areas or cells which do not support a specific communication capability or function (such as cell 23 in Fig. 1 ) are directly adjacent to each other.
  • a specific communication capability or function e.g. cells 21 and 25 in Fig. 1
  • network areas or cells which do not support a specific communication capability or function such as cell 23 in Fig. 1
  • neighboring network areas can also mean that network areas or cells supporting a specific communication capability or function and network areas or cells not supporting a specific communication capability or function are not directly adjacent to each other.
  • the directly adjacent network area not only the directly adjacent network area but also one or more following network areas (i.e. where the first directly adjacent network area forms an intermediate network area to the communication capability or function supporting network area) can be used as“neighboring network areas” in the sense of examples of embodiments, i.e. to allow the extended paging procedure being executed when the UE is located therein, e.g. in case the first (i.e. intermediate) not supporting network area is of a limited size or the like and a distance between respective following network area and the communication capability or function supporting network areas is still sufficiently small, for example.
  • an extended paging procedure is proposed which allows, in a non-homogeneous network scenario, to avoid wastage of network resources due to unnecessary paging attempts but at the same time allows to minimize the failure of incoming calls/data transfer for UEs that are outside of the border of the network areas supporting the specific communication capability or function. This would especially be relevant during an initial deployment of those specific communication capabilities or functions and their extension to new cells, also because of possible errors in the planning phase.
  • Wi- Fi worldwide interoperability for microwave access (WiMAX), Bluetooth®, personal communications services (PCS), ZigBee®, wideband code division multiple access (WCDMA), systems using ultra-wideband (UWB) technology, mobile ad-hoc networks (MANETs), wired access, etc.
  • WiMAX worldwide interoperability for microwave access
  • PCS personal communications services
  • ZigBee® wideband code division multiple access
  • WCDMA wideband code division multiple access
  • UWB ultra-wideband
  • MANETs mobile ad-hoc networks
  • wired access etc.
  • a basic system architecture of a (tele)communication network including a mobile communication system may include an architecture of one or more communication networks including wireless access network subsystem(s) and core network(s).
  • Such an architecture may include one or more communication network control elements or functions, access network elements, radio access network elements, access service network gateways or base transceiver stations, such as a base station (BS), an access point (AP), a NodeB (NB), an eNB or a gNB, a distributed or a centralized unit, which controls a respective coverage area or cell(s) and with which one or more communication stations such as communication elements, user devices or terminal devices, like a UE, or another device having a similar function, such as a modem chipset, a chip, a module etc., which can also be part of a station, an element, a function or an application capable of conducting a communication, such as a UE, an element or function usable in a machine-to-machine communication architecture, or attached as a separate
  • core network elements or network functions such as gateway network elements/functions, mobility management entities, a mobile switching center, servers, databases and the like may be included.
  • the general functions and interconnections of the described elements and functions, which also depend on the actual network type, are known to those skilled in the art and described in corresponding specifications, so that a detailed description thereof is omitted herein.
  • additional network elements and signaling links may be employed for a communication to or from an element, function or application, like a communication endpoint, a communication network control element, such as a server, a gateway, a radio network controller, and other elements of the same or other communication networks besides those described in detail herein below.
  • a communication network architecture as being considered in examples of embodiments may also be able to communicate with other networks, such as a public switched telephone network or the Internet.
  • the communication network may also be able to support the usage of cloud services for virtual network elements or functions thereof, wherein it is to be noted that the virtual network part of the telecommunication network can also be provided by non-cloud resources, e.g. an internal network or the like.
  • network elements of an access system, of a core network etc., and/or respective functionalities may be implemented by using any node, host, server, access node or entity etc. being suitable for such a usage.
  • a network function can be implemented either as a network element on a dedicated hardware, as a software instance running on a dedicated hardware, or as a virtualized function instantiated on an appropriate platform, e.g., a cloud infrastructure.
  • a network element such as communication elements, like a UE, a terminal device, control elements or functions, such as access network elements, like a base station (BS), an gNB, a radio network controller, a core network control element or function, such as a gateway element, or other network elements or functions, as described herein, and any other elements, functions or applications may be implemented by software, e.g. by a computer program product for a computer, and/or by hardware.
  • nodes, functions or network elements may include several means, modules, units, components, etc. (not shown) which are required for control, processing and/or communication/signaling functionality.
  • Such means, modules, units and components may include, for example, one or more processors or processor units including one or more processing portions for executing instructions and/or programs and/or for processing data, storage or memory units or means for storing instructions, programs and/or data, for serving as a work area of the processor or processing portion and the like (e.g. ROM, RAM, EEPROM, and the like), input or interface means for inputting data and instructions by software (e.g. floppy disc, CD-ROM, EEPROM, and the like), a user interface for providing monitor and manipulation possibilities to a user (e.g. a screen, a keyboard and the like), other interface or means for establishing links and/or connections under the control of the processor unit or portion (e.g.
  • radio interface means including e.g. an antenna unit or the like, means for forming a radio communication part etc.) and the like, wherein respective means forming an interface, such as a radio communication part, can be also located on a remote site (e.g. a radio head or a radio station etc.).
  • a remote site e.g. a radio head or a radio station etc.
  • a so-called“liquid” or flexible network concept may be employed where the operations and functionalities of a network element, a network function, or of another entity of the network, may be performed in different entities or functions, such as in a node, host or server, in a flexible manner.
  • a “division of labor” between involved network elements, functions or entities may vary case by case.
  • Fig. 2 shows a diagram illustrating an example of a non-homogenous network scenario for explaining examples of embodiments.
  • Fig. 2 shows a simplified network part similar to that of Fig. 1 , wherein a further cell 27 as an additional network area is provided which is controlled by a BS or gNB 4 26.
  • cell 27 does not support the specific communication capability or function (in the following, slice A is used as an example for this capability), i.e. it is similar to cell 23.
  • slice A is used as an example for this capability
  • cell 27 is not a neighboring cell for the slice supporting cells 21 and 25.
  • this includes also that there is no direct connection between the gNB 26 and the gNBs 20 and 24 of the slice supporting cells 21 and 25 (such as a X2/Xn interface between the respective gNBs), while there is such a direct connection between the gNBs 20, 24 and 22.
  • UE 12 is assumed to return to a cell supporting the slice A (i.e. cell 25)
  • UE 13 is assumed to remain in the network areas not providing support for slice A (i.e. in cells 23 and 27)
  • UE 14 is assumed to be activated in cell 23 (i.e. attaching to the network via gNB 22, for example) and is moving towards a slice supporting cell (e.g. cell 25).
  • the UEs e.g. UE 12, UE 13 and UE 14
  • the network i.e. the paging agent which is e.g. a CN network element or function or a RAN element or function
  • the network conducts a paging procedure when e.g. an incoming call/data transfer request is received.
  • a paging agent still pages the UEs for a communication connection using the specific communication capability or function in predetermined (limited) areas that are close (i.e.
  • the paging agent is aware of the capability or the UE to use the specific communication capability or function, for example, from configuration data stored in the network for each UE being attached thereto (e.g. received and stored in an initial attachment or registration procedure of the UE, or the like).
  • the paging agent e.g. a part of the CN 30
  • a UE which is, in the present example, in the idle state
  • the paging agent checks whether or not an extended paging condition is fulfilled.
  • the extended paging condition is based, for example, on the current location of the UE, i.e.
  • non-neighboring means, for example, network areas being too far away from the communication capability supporting cells, or cells whose control elements (e.g. gNBs) do not have a link (e.g. Xn/X2) to the gNBs of communication capability supporting cells.
  • an enhanced communication establishment procedure is triggered which supports the establishment of the requested communication connection based on the usage of the specific communication capability or function.
  • neighboring network areas which provides the specific communication capability or function are involved.
  • an enhanced communication establishment procedure involves the establishment of a DC/MC connection to the cells (i.e. the gNB thereof, such as gNB 20) which provides the specific communication capability or function via the currently reachable cell (i.e.
  • the gNB thereof, such as gNB 22
  • the data are transmitted from the gNB 20 to the gNB 22 via an interface therebetween (e.g. the X2/Xn interface), wherein the gNB 22 forwards the data to the UE via the air interface, and vice versa.
  • the UE can be set in a so-called network capability search mode which allows to accelerate a handover to a cell (e.g. cell 25) providing the required specific communication capability or function.
  • Other examples for enhanced communication establishment procedures are also applicable as long as the measures thereof lead to the possibility that the requested connection can be established even though the UE is currently in the network area not providing the specific communication capability or function.
  • Fig. 3 shows a signaling diagram for explaining a paging control procedure according to some examples of embodiments.
  • the network knows the location of the UEs at a predefined level, e.g. a TA level, such that the location of the UE can be determined with TA(s) granularity.
  • the UE location is not known at an individual cell level granularity.
  • a network communication capability border TA is defined which represent a specific TA defined for the cells that are direct neighbors of the communication capability border cells.
  • network areas (or cells) having e.g. an Xn interface with network communication capability border cells are part of the TA.
  • cell 23 supporting only e.g. the MNO slice is configured to be part of this specific TA as it is a direct neighbor (having also a Xn interface to cell 21 and cell 25 both support the specific communication capability or function (e.g. slice A).
  • a TA can also be tagged as a“communication capability border area”.
  • the paging agent is configured to perform paging for incoming calls/data transfer based on the specific communication capability when the UE is located in this specific TA.
  • Fig. 3 is related to a transmission of the paging message depending on whether the UE is still in the“communication capability border area” TA.
  • the UE e.g. UE 12 or UE 14 as shown in Fig. 2
  • cell 23 i.e. the network area not providing the specific network capability or function.
  • the fact that the UE is located in the cell 23 is e.g. due to a change of location due to movement from cell 21 , or due to an activation of the UE in cell 23.
  • the UE informs the network and in particular the paging agent (such as the AMF, MME or RAN element) about its current location.
  • the signaling in S310 is part of a RU processing when the UE transits from cell 21 to cell 23, or of an attachment procedure in cell 23, for example.
  • a paging message is received, which is related, for example, to an incoming call or request for a data transfer from an external source which is using or requires the specific network capability. It is to be noted that the reason for the paging message is not necessarily limited to such an incoming call event; for example, a paging message due to a network setting or the like is also possible.
  • the paging agent checks whether the extended paging condition is fulfilled.
  • this extended paging condition is that the UE is located in the specific TA, i.e. in the communication capability border area described above.
  • the paging agent forwards in S340 the paging message to the UE (which is in the specific TA).
  • the paging agent forwards in S340 the paging message to the UE (which is in the specific TA).
  • a procedure for supporting the establishment of the communication connection using the specific communication capability or function, even though the UE is (currently) in the cell 23 not supporting the specific communication capability or function is initiated, which involves, for example, to set the UE in the search mode or to establish a DC/MC connection via cell 23 to cell 21 or 25, for example.
  • a paging message is received, which is related, for example, to an incoming call or request for a data transfer from an external source which is using or requires the specific network capability.
  • each communication capability or function may have different border areas. Consequently, the specific TA has to be communication capability specific.
  • measures are taken by means of which generation of too many TAs and ultimately large TAU and paging signaling in the network (since all UEs, irrespective of capability for a specific communication capability or function, have to perform TAU when entering or leaving the communication capability border area) can be avoided. For example, this is achieved by setting a maximum number of allowable TAs or the like.
  • Fig. 4 shows a signaling diagram for explaining a further paging control procedure according to some examples of embodiments.
  • the extended paging condition is based on a knowledge that a UE is in a specific network area or cell. That is, paging can be performed beyond the communication capability coverage area when the UE is in a preset cell. This means, a specific TA is not necessary to be defined for those cells.
  • the specific cells where paging is performed can be, for example, the direct neighboring cells of the cells forming the network slice border (i.e. cells 21 and 25). It is to be noted that in this example, the network has to track the UE location at a cell level, at least within those preset cells. A corresponding list of cells can be provided to UEs being candidates for the paging procedure according to this example, e.g.
  • a corresponding list of cells is provided only to UEs leaving e.g. their communication capability coverage area. That is, optimization of TA allocation with respect to signaling overhead caused by TAUs is not impacted.
  • Fig. 4 is related to a transmission of the paging message depending on whether the UE is in certain cells (e.g. direct neighbors of the cells providing the specific communication capability), i.e. depending on whether the UE is still in the coverage of a preset list Q of cells.
  • certain cells e.g. direct neighbors of the cells providing the specific communication capability
  • the UE e.g. UE 12 or UE 14 as shown in Fig. 2
  • cell 23 i.e. the network area not providing the specific network capability or function.
  • the fact that the UE is located in the cell 23 is e.g. due to a change of location due to movement from cell 21 , or due to an activation of the UE in cell 23.
  • the UE informs the network and in particular the paging agent (such as the AMF, MME or RAN element) about its current location.
  • the signaling in S410 is part of a RU processing when the UE transits from cell 21 to cell 23, or of an attachment procedure in cell 23, for example.
  • the network e.g. the paging agent
  • the network sends to the UE the list Q of border cells in S420, i.e. the cells where the specific communication capability is not supported but in which a paging is executed due to the fact that the cells are e.g. direct neighbors to cells providing the specific communication capability or function.
  • a paging message is received, which is related, for example, to an incoming call or request for a data transfer from an external source which is using or requires the specific network capability. It is to be noted that the reason for the paging message is not necessarily limited to such an incoming call event; for example, a paging message due to a network setting or the like is also possible.
  • the paging agent checks whether the extended paging condition is fulfilled.
  • this extended paging condition is that the UE is located in one of the cells in the list Q.
  • the paging agent forwards in S450 the paging message to the UE (which is in one of the preset cells).
  • the paging agent forwards in S450 the paging message to the UE (which is in one of the preset cells).
  • a procedure for supporting the establishment of the communication connection using the specific communication capability or function, even though the UE is (currently) in the cell 23 not supporting the specific communication capability or function is initiated, which involves, for example, to set the UE in the search mode or to establish a DC/MC connection via cell 23 to cell 21 or 25, for example.
  • the network has to track the location of the UE at a cell level.
  • a signaling for location update is sent to the paging agent.
  • the new cell, e.g. cell 27, is not part of the list Q, e.g. since it is not a direct neighbor to the communication capability supporting cells.
  • a paging message is received, which is related, for example, to an incoming call or request for a data transfer from an external source which is using or requires the specific network capability.
  • Fig. 5 shows a signaling diagram for explaining a further paging control procedure according to some examples of embodiments.
  • a timer is defined for the extended paging condition.
  • the time is set such that is can be presumed that a UE is still in an area being close to a communication capability border.
  • the paging agent starts a preset timer. If any incoming call requests or the like are received by the paging agent while the timer is running the extended paging condition is assumed to be fulfilled.
  • the timer can be combined with a configuration of a specific TA.
  • the paging agent can reject incoming calls without performing the paging. This is also applicable, for example, when the UE is still in the specific TA, e.g. still in cell 23.
  • Fig. 5 is related to a transmission of the paging message depending on the time for which the UE is in an area (e.g. a TA) after the location update in which the specific communication capability or function is not supported, i.e. in which a paging message is transmitted depending on whether the timer has expired or not.
  • the UE e.g. UE 12 or UE 14 as shown in Fig. 2
  • cell 23 i.e. the network area not providing the specific network capability or function.
  • the fact that the UE is located in the cell 23 is e.g. due to a change of location due to movement from cell 21 , or due to an activation of the UE in cell 23.
  • the UE informs the network and in particular the paging agent (such as the AMF, MME or RAN element) about its current location.
  • the signaling in S510 is part of a RU processing when the UE transits from cell 21 to cell 23, or of an attachment procedure in cell 23, for example.
  • the paging agent starts the timer described above, in reaction to the location update in S510.
  • a paging message is received, which is related, for example, to an incoming call or request for a data transfer from an external source which is using or requires the specific network capability. It is to be noted that the reason for the paging message is not necessarily limited to such an incoming call event; for example, a paging message due to a network setting or the like is also possible.
  • the paging agent checks whether the extended paging condition is fulfilled. In the example of Fig. 5, this extended paging condition is that the timer started in S520 is not yet expired. Then, it is assumed that the UE is in the specific TA close to communication capability border. When the determination is affirmative, the paging agent forwards in S550 the paging message to the UE (which is in the specific TA).
  • a paging message is received, which is related, for example, to an incoming call or request for a data transfer from an external source which is using or requires the specific network capability.
  • S570 when the paging agent checks whether the extended paging condition is fulfilled, it is determined that the timer is expired, so that the extended paging condition is not fulfilled. Consequently, the paging agent does not forward a paging message to the UE
  • the timer value can be varied and optimized for different UE characteristics like speed and UE capability as well as the QoS characteristics of the communication capability or function which the UE requires. For example, for fast moving UEs, e.g. vehicles, a relative short timer value is selected. On the other hand, in case the QoS characteristic are on a high level, also a short timer value is selected.
  • the mentioned implementation examples can also be combined.
  • the example in which the list Q of specific neighboring cells is used can also be combined with a timer to restrict the paging in extended area for a limited period of time only.
  • a first example is related to a procedure in which a so-called switched mode for providing service continuity for the UE using the specific communication capability or function is conducted. This is achieved, for example, by starting a DC or MC communication, wherein the switched mode involves that at least one split or switched bearer is established to the UE from a communication network control element or function of the network area in which the UE is located (i.e. the network area or cell which does not provide the specific communication capability or function, e.g. cell 23), via which the UE can communicate with the network.
  • data traffic e.g.
  • DC as standardized, for example, by 3GPP in LTE Release 12/13, extends carrier aggregation (CA) functionality to allow a UE to simultaneously receive/send data from two different communication network control elements or functions, such as two eNBs.
  • CA carrier aggregation
  • NR new radio
  • Rel-15 DC is a solution for throughput boosting (using data split at PDCP layer) as well as data robustness and reliability boosting for services like URLLC (by means of PDCP level data duplication across the different nodes).
  • NR-NR DC or MC is employed, wherein a sA-UE is connected to a NR next generation node (gNB) as a Master Node (MgNB) and one or more Secondary gNB Nodes (SgNB).
  • MgNB Master Node
  • SgNB Secondary gNB Nodes
  • split Signaling Radio Bearer is used for improving signaling robustness allowing the selection of either the direct path (i.e. given node to UE) or the path via the other node, as well as the duplication of RRC PDUs via both nodes.
  • DC (as well as MC) in NR inherits a design where a UE configured in DC can benefit from resources from a master cell (MCell) and a secondary cell (Scell) simultaneously.
  • MCell master cell
  • Scell secondary cell
  • MCG split bearer, SCG split bearer, and SCG bearer are supported.
  • MCG split bearer configuration is a solution where a control plane (c-plane) link to the UE is established between the master node and the UE while a user plane (u-plane) link is established from the CN via the master node to the UE as well as between the secondary node and the UE (which is split from the master node to the secondary node);
  • SCG bearer configuration is a solution where a c-plane link to the UE is established from the CN via the master node and the UE while a u-plane link is established from the CN via the secondary node to UE;
  • SCG split bearer configuration is a solution where a c-plane link to the UE is established from the CN via the master node to the UE, while a u-plane link is established from the CN via the secondary node to the UE as well as between master node and the UE (which is split from the secondary node to the master node);
  • a UE can have two RRC connections to the network, namely the LTE RRC and NR RRC connections.
  • LTE RRC Long Term Evolution
  • NR RRC New Radio Resource Control
  • a master cell group (MCG)/secondary cell group (SCG) is defined as a group of serving cells associated with the master node (MN)/secondary node (SN).
  • MCG master cell group
  • SCG secondary cell group
  • MN master node
  • SN secondary node
  • all cells in a MCG belong to MN and all cells in SCG belong to SN.
  • a UE may can have more than one SN.
  • a primary cell is a MCG cell, operating on the primary frequency, in which the UE either performs the initial connection establishment procedure or initiates the connection re-establishment procedure.
  • a primary SCG cell (PSCell) is, for a DC operation, the SCG cell in which the UE performs random access when performing the Reconfiguration with Sync procedure.
  • the SCG is, for a UE configured with DC, the subset of serving cells comprising the PSCell and zero or more secondary cells.
  • LTE-WiFi aggregation i.e. DC between LTE and WiFi
  • LWA split bearer In the switched bearer mode, all u- plane PDCP PDUs are forwarded from the eNB to the WiFi part and provided to the UE over the WiFi radio link.
  • u-plane PDUs are distributed between the LTE radio link and the WiFi link, i.e. a branch from the LTE part to the WiFi part is established for the u-plane PDUs.
  • the LTE part i.e. the eNB
  • LTE control-plane i.e. RRC messages
  • Examples of embodiments are related to a configuration where a specific dual connectivity (or multi-connectivity) switched mode (also referred to as switched bearer mode) is activated with the aim of extending the support of a given communication capability or function (such as MEC, security scheme support, or slice support referred to hereinafter again as slice A) in scenarios with non-homogeneous support (i.e. as described in connection with Fig. 2, for example). That is, the usage of a certain network function or communication capability which is associated with a specific communication capability supporting cell (such as cell 21 in Fig. 2) can also be provided when the UE (i.e. one of the sA-UEs 10, 12, 13, 14, for example) is in the coverage of a cell which does not provide such a communication capability support (such as to cell 23), but which is a neighboring cell to the communication capability providing cells.
  • a specific dual connectivity (or multi-connectivity) switched mode also referred to as switched bearer mode
  • a MC/DC connection has to be established by using one of the border cells that support the specific communication capability.
  • the UE Upon receiving the paging message for an incoming call using the specific communication capability (e.g. for slice A), the UE sets up a new RRC connection with an establishment cause set to“incoming call”.
  • the serving cell requests over the Xn interface one of the neighboring cells supporting the specific communication capability the establishment of MC/DC connection so as to re-route the user and control planes of the communication using the specific communication capability (e.g. slice A) to the UE via the radio interface of the serving cell (i.e. the gNB 22 of cell 23). That is, in the DC/MC mode, the present cell serves the UE through its radio interface (e.g.
  • the UE can be configured to stop monitoring both u-plane and c-plane connections of the neighbor cell. Hence, the UE can be out of the coverage area of the neighboring cell. This means that the neighboring cell is used only for the forwarding of user plane data through the network interface rather than air-interface provisioning.
  • the new serving cell (i.e. cell 23 with gNB 22) extends the communication capability coverage by establishing a MC/DC connection using one of the border cells that support the communication capability, e.g. cell 21 with gNB 20.
  • the UE 12 upon receiving the paging message for an incoming call/data transfer using e.g. slice A from the paging agent 30, the UE 12 setups a new RRC connection with an establishment cause set to “incoming call/data transfer”.
  • the gNB 22 requests over the Xn interface the gNB 20 regarding the establishment of the MC/DC connection.
  • the user and control planes of e.g. slice A are rerouted via the Xn interface between the gNBs 20 and 22, and forwarded to the UE via the radio interface of the gNB 22.
  • a procedure is not useful, for example, for UEs having a greater distance to the communication capability border.
  • a UE such as UE 13 which moves towards the cell 27, which is no neighboring cell and which has, for example, no interface (e.g. Xn, X2) to the communication capability supporting cells 21 and 25, is not considered for the enhanced communication establishment procedure discussed above.
  • the UE can be set into a communication capability search mode in which a handover of the UE from the network area not supporting the communication capability or function to a network area providing the communication capability or function is accelerated.
  • the network e.g. the paging agent or another communication network control element or function
  • the network configures the UE with parameters allowing to accelerate a handover to a cell in which the communication capability is supported. This is useful, for example, in case of e.g. UE 10 which is located only shortly in the cell 23.
  • a handover e.g. back to the cell 21 can be accelerated, i.e. for example an earlier handover is triggered by lowering corresponding thresholds or the like so that the cell 21 is selected already to an earlier point of time.
  • the incoming call can be handled earlier by using the resources of cell 21.
  • the network provides the UE with communication capability search mode information.
  • the information provided includes about the neighbor cells supporting the given communication capability (e.g. slices) (such as an indication of cell 21 or 25), and a proposal for a suitable measurement configuration.
  • the communication capability search mode information can be adapted by the serving cell (here cell 23) in such a manner that measurement configuration only for relevant (e.g. strongest) neighboring cells are included.
  • measurement configurations of all neighboring cells supporting the communication capability e.g. slice A
  • a timer indicating a period of time for searching a new cell that supports the communication capability
  • the duration can be set, for example, on the basis of the service type carried by the slice A.
  • the timer is started, for example, by the serving cell when the paging message is sent to the UE. Upon the expiry of timer, the connection establishment attempt by trying a handover of the UE can be stopped.
  • information about how to prioritize communication capability supporting cells can be provided. For example, it is possible to indicate values like thresholds (e.g. strong/moderate/weak) for setting a priority order when plural candidates of cells supporting slice A (i.e. to which the UE (e.g. UE 2 12) can be switched in the communication capability search mode) are available. This can also take into account, for example, overall slice demands of the UE vs. the slice support at various neighboring cells. It is to be noted that in case multiple slices or communication capabilities shall be searched (i.e. not only slice A but also other slices or communication capabilities are demanded), a separate prioritization level per slice can be provided.
  • thresholds e.g. strong/moderate/weak
  • the handover procedure for the UE When the handover procedure for the UE is configured accordingly, it is tried to find a suitable cell and to accelerate the handover to this cell with new settings, compared to default settings, for example.
  • the UE can be configured in such a manner that the UE is prevented from continuously requesting e.g. slice A service when it is connected to cell 23 not supporting slice A.
  • the communication capability search mode allows an earlier establishment of a connection using requested services in cases when the UE rests in front of a communication capability supporting cell, where normal reselection/handover parameters would not make the UE to connect to this cell.
  • the prioritization during communication capability search mode allows to push the UE to such a communication capability supporting cell.
  • Fig. 6 shows a flow chart of a processing executed by a communication network control element or function acting as a paging agent (such as a gNB, a MME, AMF or the like) according to some examples of embodiments which controls a paging procedure in a non-homogenous network according to some examples of embodiments.
  • the paging agent determines that a communication element or function configured to use a specific communication capability or function is located in a first network area of a communication network, wherein the first network area does not provide the specific communication capability or function. For example, it is determined that one of the UEs in Fig. 2 is located in cell 23.
  • a location update signaling from the communication element or function is received and processed when the communication element or function changes the location from a second network area which provides the specific communication capability or function (e.g. cell 21 ) and enters the first network area.
  • an attachment signaling from the communication element or function is received and processed when the communication element or function activates a connection to the communication network when being in the first network area.
  • the communication element or function is located in another network area of the communication network (e.g. cell 27) which does not provide the specific communication capability or function and is different to the first network area by receiving and processing a corresponding location update signaling from the UE when the UE changes the location from a first network area (e.g. cell 23) and enters the other network area (i.e. cell 27).
  • This process is used, for example, to track the UE on a cell level (see e.g. S460 in Fig. 4).
  • an incoming request for establishing a communication connection (call, data transfer or the like) to the communication element or function is received and processed, wherein the requested communication connection is based on the usage of the specific communication capability or function.
  • the extended paging condition comprises that the communication element or function is located within a predetermined communication capability border region (e.g. a specific TA) defining a specific tracking area including one or more network areas which do not provide the specific communication capability or function but which are adjacent to at least one network area providing the specific communication capability or function.
  • the extended paging condition comprises that the communication element or function is located within one of a preset list of network areas (list Q) which is set in advance as network areas in which the extended paging condition is met.
  • the extended paging condition comprises that a preset timer being started when it is determined that the communication element or function is located in a first network area (e.g. when the location is changed) has not expired.
  • S630 follows.
  • a paging message is forwarded to the communication element or function.
  • an enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication capability orfunction is triggered, wherein a neighboring network area (e.g. cell 21 or 25) which provides the specific communication capability or function is involved.
  • the enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication capability or function includes to conduct a so-called switched mode for providing service continuity for the communication element or function using the specific communication capability or function by starting a dual or multi connectivity communication.
  • the switched mode involves that at least one split or switched bearer is established to the communication element or function by a first communication network control element or function (i.e. gNB 22) of the first network area via which the communication element or function communicates with the network, and data traffic for the continued service using the specific communication capability or function is transmitted to or from the communication element of function from or to a second communication network control element or function (e.g.
  • the enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication capability or function includes to set the communication element or function into a communication capability search mode in which a handover of the communication element or function from the first network area (i.e. cell 23) to a network area providing the communication capability or function (e.g. cell 21 or 25) is accelerated.
  • the extended paging condition is determined to be not fulfilled by the communication element or function.
  • Fig. 7 shows a flow chart of a processing executed by a communication element or function like a UE in a paging procedure in a non-homogenous network according to some examples of embodiments.
  • the communication element or function is configured to use a specific communication capability or function in a communication connection.
  • S700 information indicating that the communication element or function is located in a first network area of a communication network, wherein the first network area does not provide the specific communication capability or function, is provided to a paging agent network element or function.
  • the information indicating that the communication element of function is located in a first network area of a communication network is provided by sending a location update signaling to the paging agent network element or function when the communication element or function changes the location from a second network area (e.g. cell 21 ) which provides the specific communication capability or function and enters the first network area (e.g. cell 23).
  • the information indicating that the communication element of function is located in a first network area of a communication network is provided by sending an attachment signaling when the communication element or function activates a connection to the communication network when being in the first network area.
  • the UE provides information indicating that the UE is located in another network area of the communication network (i.e. cell 27) which does not provide the specific communication capability or function and is different to the first network area. This is done, for example, by sending a location update signaling to the paging agent network element or function when the UE changes the location from a first network area (i.e. cell 23) and enters the other network area (i.e. cell 27).
  • the communication element or function is in one of an idle connection state, an inactive connection state or a connected state in which the specific communication capability or function is not used when receiving the paging message.
  • a paging message indicating an incoming request for establishing a communication connection to the communication element or function is received and processed, wherein the requested communication connection is based on the usage of the specific communication capability or function.
  • an enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication capability or function is started, wherein a neighboring network area which provides the specific communication capability or function is involved.
  • the enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication capability or function includes to conduct a so-called switched mode for providing service continuity for the communication element or function using the specific communication capability or function by starting a dual or multi connectivity communication.
  • the switched mode involves that at least one split or switched bearer is established to the communication element or function by a first communication network control element or function (i.e. gNB 22) of the first network area via which the communication element or function communicates with the network, and data traffic for the continued service using the specific communication capability or function is transmitted to or from the communication element of function from or to a second communication network control element or function (e.g. gNB 20) of the neighboring network area (here cell 21 ) providing the specific communication capability or function via the first communication network control element or function using the at least one split or switched bearer.
  • a first communication network control element or function i.e. gNB 22
  • a second communication network control element or function e.g. gNB 20
  • the enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication capability or function includes to set the communication element or function into a communication capability search mode in which a handover of the communication element or function from the first network area (i.e. cell 23) to a network area providing the communication capability or function (e.g. cell 21 or 25) is accelerated.
  • a connection establishment request is transmitted to the first communication network control element or function (i.e. the gNB 22) of the first network area including an indication that a split or switched bearer is to be established to the communication network control element or function of the neighboring network area (i.e. a cell providing the specific communication capability or function, such as gNB 20 of cell 21 ).
  • a communication using the specific communication capability or function is conducted via the first communication network control element or function (i.e. by using the split bearer).
  • the communication element or function is set into the communication capability search mode in which a handover of the communication element or function from the first network area (cell 23) to a network area providing the communication capability or function (e.g. cell 21 ) is accelerated, at least one of following is received and processed:
  • timer information indicating a timing for which the communication element or function is to be kept in the communication capability search mode
  • Fig. 8 shows a flow chart of a processing executed by a communication network control element orfunction like a serving BS or gNB in a paging procedure in a non-homogenous network according to some examples of embodiments.
  • a request for establishing a communication connection is received from a communication element and processed, wherein the communication connection is using a specific communication capability or function and the controlled network area does not provide the specific communication capability or function.
  • an enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication capability or function is conducted, wherein a neighboring network area which provides the specific communication capability or function is involved.
  • the enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication capability or function includes to conduct a so-called switched mode for providing service continuity for the communication element or function using the specific communication capability or function by starting a dual or multi connectivity communication.
  • the switched mode involves that at least one split or switched bearer is established to the communication element or function by the communication network control element or function (i.e. gNB 22) of the current network area via which the communication element or function communicates with the network, and data traffic for the continued service using the specific communication capability or function is transmitted to or from the communication element of function from or to a second communication network control element or function (e.g. gNB 20) of the neighboring network area (here cell 21 ) providing the specific communication capability or function via the first communication network control element or function using the at least one split or switched bearer.
  • the communication network control element or function i.e. gNB 22
  • data traffic for the continued service using the specific communication capability or function is transmitted to or from the communication element of function from or to
  • the enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication capability or function includes to set the communication element or function into a communication capability search mode in which a handover of the communication element or function from the first network area (i.e. cell 23) to a network area providing the communication capability or function (e.g. cell 21 or 25) is accelerated.
  • a connection establishment request is received from the communication element or function including an indication that a split or switched bearer is to be established to the communication network control element or function of the neighboring network area. Then, an establishment of a dual or multi connectivity communication with the communication network control element or function of the neighboring network area which provides the specific communication capability or function is conducted. Thereafter, data are transferred between the communication element or function and the communication network control element or function of the neighboring network when the communication using the specific communication capability or function is conducted.
  • timer information indicating a timing for which the communication element or function is to be kept in the communication capability search mode
  • Fig. 9 shows a diagram of a network element or function acting as a paging agent element or function controlling a paging procedure according to some examples of embodiments, e.g. a CN network element or function 30 of Fig. 2, which is configured to conduct a paging control procedure as described in connection with some of the examples of embodiments.
  • the paging agent element or function like the CN network element 30 of Fig. 2, may include further elements or functions besides those described herein below.
  • the element or function may be also another device or function having a similar task, such as a chipset, a chip, a module, an application etc., which can also be part of a network element or attached as a separate element to a network element, or the like.
  • a chipset a chip, a module, an application etc.
  • each block and any combination thereof may be implemented by various means or their combinations, such as hardware, software, firmware, one or more processors and/or circuitry.
  • the paging agent element shown in Fig. 9 may include a processing circuitry, a processing function, a control unit or a processor 301 , such as a CPU or the like, which is suitable for executing instructions given by programs or the like related to the paging control procedure.
  • the processor 301 may include one or more processing portions or functions dedicated to specific processing as described below, or the processing may be run in a single processor or processing function. Portions for executing such specific processing may be also provided as discrete elements or within one or more further processors, processing functions or processing portions, such as in one physical processor like a CPU or in one or more physical or virtual entities, for example.
  • Reference sign 302 and 303 denote input/output (I/O) units or functions (interfaces) connected to the processor or processing function 301.
  • the I/O units 302 may be used for communicating with the communication element or function like the UEs 10, 12, 13, 14, as described in connection with Fig. 2, for example.
  • the I/O units 303 may be used for communicating with the network, like RAN (i.e. gNBs) or CN network elements, as described in connection with Fig. 2, for example.
  • the I/O units 302 and 303 may be a combined unit including communication equipment towards several entities, or may include a distributed structure with a plurality of different interfaces for different entities.
  • Reference sign 304 denotes a memory usable, for example, for storing data and programs to be executed by the processor or processing function 301 and/or as a working storage of the processor or processing function 301. It is to be noted that the memory 304 may be implemented by using one or more memory portions of the same or different type of memory.
  • the processor or processing function 301 is configured to execute processing related to the above described paging control processing.
  • the processor or processing circuitry or function 301 includes one or more of the following sub-portions.
  • Sub-portion 301 1 is a processing portion which is usable as a portion for determining a location of the UE.
  • the portion 301 1 may be configured to perform processing according to S600 of Fig. 6.
  • the processor or processing circuitry or function 301 may include a sub-portion 3012 usable as a portion for processing a communication request.
  • the portion 3012 may be configured to perform a processing according to S610 of Fig. 6.
  • the processor or processing circuitry or function 301 may include a sub-portion 3013 usable as a portion for determining whether the extended paging condition is fulfilled.
  • the portion 3013 may be configured to perform a processing according to S620 of Fig. 6.
  • the processor or processing circuitry or function 301 may include a sub-portion 3014 usable as a portion for transmitting a paging message to the UE.
  • the portion 3014 may be configured to perform a processing according to S630 of Fig. 6.
  • Fig. 10 shows a diagram of a network element or function acting as a communication element or function such as a UE operating with a paging control procedure according to some examples of embodiments, which is configured to conduct a processing in a paging procedure as described in connection with some of the examples of embodiments.
  • the communication element or function like the UE 12 of Fig. 2, may include further elements or functions besides those described herein below.
  • the element or function may be also another device or function having a similar task, such as a chipset, a chip, a module, an application etc., which can also be part of a network element or attached as a separate element to a network element, or the like.
  • each block and any combination thereof may be implemented by various means or their combinations, such as hardware, software, firmware, one or more processors and/or circuitry.
  • the communication element like the UE 12 shown in Fig. 10 may include a processing circuitry, a processing function, a control unit or a processor 121 , such as a CPU or the like, which is suitable for executing instructions given by programs or the like related to the paging procedure.
  • the processor 121 may include one or more processing portions or functions dedicated to specific processing as described below, or the processing may be run in a single processor or processing function. Portions for executing such specific processing may be also provided as discrete elements or within one or more further processors, processing functions or processing portions, such as in one physical processor like a CPU or in one or more physical or virtual entities, for example.
  • Reference sign 122 denotes input/output (I/O) units or functions (interfaces) connected to the processor or processing function 121.
  • the I/O units 122 may be used for communicating with the network, like the CN 30 or gNBs, as described in connection with Fig. 2, for example.
  • the I/O units 122 may be a combined unit including communication equipment towards several entities, or may include a distributed structure with a plurality of different interfaces for different entities.
  • Reference sign 124 denotes a memory usable, for example, for storing data and programs to be executed by the processor or processing function 121 and/or as a working storage of the processor or processing function 121 . It is to be noted that the memory 124 may be implemented by using one or more memory portions of the same or different type of memory.
  • the processor or processing function 121 is configured to execute processing related to the above described paging processing.
  • the processor or processing circuitry or function 121 includes one or more of the following sub-portions.
  • Sub-portion 121 1 is a processing portion which is usable as a portion for providing location information.
  • the portion 121 1 may be configured to perform processing according to S700 of Fig. 7.
  • the processor or processing circuitry or function 121 may include a sub-portion 1212 usable as a portion for processing a paging message.
  • the portion 1212 may be configured to perform a processing according to S710 of Fig. 7.
  • the processor or processing circuitry or function 121 may include a sub-portion 1213 usable as a portion for conducting a processing for an enhanced communication establishment.
  • the portion 1213 may be configured to perform a processing according to S720 of Fig. 7.
  • Fig. 1 1 shows a diagram of a network element or function acting as a communication network control element or function controlling a serving (or anchor) cell according to some examples of embodiments, i.e. the gNB 22 of Fig. 2, which is configured to conduct a paging procedure as described in connection with some of the examples of embodiments.
  • the communication network control element or function like the gNB 22 of Fig. 2, may include further elements or functions besides those described herein below.
  • the element or function may be also another device or function having a similar task, such as a chipset, a chip, a module, an application etc., which can also be part of a network element or attached as a separate element to a network element, or the like. It should be understood that each block and any combination thereof may be implemented by various means or their combinations, such as hardware, software, firmware, one or more processors and/or circuitry.
  • the communication network control element like the gNB 22 shown in Fig. 1 1 may include a processing circuitry, a processing function, a control unit or a processor 221 , such as a CPU or the like, which is suitable for executing instructions given by programs or the like related to the paging procedure.
  • the processor 221 may include one or more processing portions or functions dedicated to specific processing as described below, or the processing may be run in a single processor or processing function. Portions for executing such specific processing may be also provided as discrete elements or within one or more further processors, processing functions or processing portions, such as in one physical processor like a CPU or in one or more physical or virtual entities, for example.
  • Reference sign 222 and 223 denote input/output (I/O) units or functions (interfaces) connected to the processor or processing function 221.
  • the I/O units 222 may be used for communicating with the communication element or function like the UEs 10, 12, 13, 14, as described in connection with Fig. 2, for example.
  • the I/O units 223 may be used for communicating with the network, like the CN 30 or other gNBs, as described in connection with Fig. 2, for example.
  • the I/O units 222 and 223 may be a combined unit including communication equipment towards several entities, or may include a distributed structure with a plurality of different interfaces for different entities.
  • Reference sign 224 denotes a memory usable, for example, for storing data and programs to be executed by the processor or processing function 221 and/or as a working storage of the processor or processing function 221 . It is to be noted that the memory 224 may be implemented by using one or more memory portions of the same or different type of memory.
  • the processor or processing function 221 is configured to execute processing related to the above described paging processing.
  • the processor or processing circuitry or function 221 includes one or more of the following sub-portions.
  • Sub-portion 221 1 is a processing portion which is usable as a portion for processing a communication connection establishment request of the UE.
  • the portion 221 1 may be configured to perform processing according to S800 of Fig. 8.
  • the processor or processing circuitry or function 221 may include a sub-portion 2212 usable as a portion for conducting a processing for an enhanced communication establishment.
  • the portion 2213 may be configured to perform a processing according to S810 of Fig. 8.
  • the paging procedure can be optimized in a way that it does not waste network resources and minimizes the failure of incoming calls/data transfer for UEs that are just outside of the border of the cells that support those specific communication capabilities.
  • examples of embodiments of the invention are applicable to various different network configurations.
  • the examples shown in the above described figures, which are used as a basis for the above discussed examples are only illustrative and do not limit the present invention in any way. That is, additional further existing and proposed new functionalities available in a corresponding operating environment may be used in connection with examples of embodiments of the invention based on the principles defined.
  • an apparatus for use by a communication network control element or function configured to control a paging procedure to a communication element or function comprising means configured to determine that a communication element or function configured to use a specific communication capability or function is located in a first network area of a communication network, wherein the first network area does not provide the specific communication capability or function, means configured to receive and process an incoming request for establishing a communication connection to the communication element or function, wherein the requested communication connection is based on the usage of the specific communication capability or function, means configured to determine whether an extended paging condition is fulfilled by the communication element orfunction, and in case the extended paging condition is fulfilled, means configured to cause forwarding of a paging message to the communication element or function and to trigger an enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication capability or function by involving a neighboring network area which provides the specific communication capability or function.
  • the above defined apparatus may further comprise means for conducting at least one of the processing defined in the above described methods, for example a method according to that described in connection with Fig 6.
  • an apparatus for use by a communication element or function configured to use a specific communication capability or function in a communication connection comprising means configured to provide, to a paging agent network element orfunction, information indicating that the communication element or function is located in a first network area of a communication network, wherein the first network area does not provide the specific communication capability or function, means configured to receive and process a paging message indicating an incoming request for establishing a communication connection to the communication element or function, wherein the requested communication connection is based on the usage of the specific communication capability or function, and means configured to start an enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication capability or function by involving a neighboring network area which provides the specific communication capability or function.
  • the above defined apparatus may further comprise means for conducting at least one of the processing defined in the above described methods, for example a method according to that described in connection with Fig 7.
  • an apparatus for use by a communication network control element or function configured to control a first network area of a communication network comprising means configured to receive and process a request for establishing a communication connection from a communication element, wherein the communication connection is using a specific communication capability or function and the first network area does not provide the specific communication capability or function, and means configured to conduct an enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication capability or function by involving a neighboring network area which provides the specific communication capability or function.
  • the above defined apparatus may further comprise means for conducting at least one of the processing defined in the above described methods, for example a method according to that described in connection with Fig 8.
  • a non- transitory computer readable medium comprising program instructions for causing an apparatus to perform at least the following: determining that a communication element or function configured to use a specific communication capability or function is located in a first network area of a communication network, wherein the first network area does not provide the specific communication capability or function, receiving and processing an incoming request for establishing a communication connection to the communication element or function, wherein the requested communication connection is based on the usage of the specific communication capability or function, determining whether an extended paging condition is fulfilled by the communication element or function, and in case the extended paging condition is fulfilled, causing forwarding of a paging message to the communication element or function and to trigger an enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication
  • a non- transitory computer readable medium comprising program instructions for causing an apparatus to perform at least the following: providing, to a paging agent network element or function, information indicating that the communication element or function is located in a first network area of a communication network, wherein the first network area does not provide the specific communication capability or function, receiving and processing a paging message indicating an incoming request for establishing a communication connection to the communication element or function, wherein the requested communication connection is based on the usage of the specific communication capability orfunction, and starting an enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication capability or function by involving a neighboring network area which provides the specific communication capability or function.
  • a non- transitory computer readable medium comprising program instructions for causing an apparatus to perform at least the following: receiving and processing a request for establishing a communication connection from a communication element, wherein the communication connection is using a specific communication capability or function and the first network area does not provide the specific communication capability or function, and conducting an enhanced communication establishment procedure for supporting establishment of the requested communication connection based on the usage of the specific communication capability or function by involving a neighboring network area which provides the specific communication capability or function.
  • an access technology via which traffic is transferred to and from an entity in the communication network may be any suitable present or future technology, such as WLAN (Wireless Local Access Network), WiMAX (Worldwide Interoperability for Microwave Access), LTE, LTE-A, 5G, Bluetooth, Infrared, and the like may be used; additionally, embodiments may also apply wired technologies, e.g. IP based access technologies like cable networks or fixed lines.
  • WLAN Wireless Local Access Network
  • WiMAX Worldwide Interoperability for Microwave Access
  • LTE Long Term Evolution
  • LTE-A Fifth Generation
  • 5G Fifth Generation
  • Bluetooth Infrared
  • wired technologies e.g. IP based access technologies like cable networks or fixed lines.
  • - embodiments suitable to be implemented as software code or portions of it and being run using a processor or processing function are software code independent and can be specified using any known or future developed programming language, such as a high- level programming language, such as objective-C, C, C++, C#, Java, Python, Javascript, other scripting languages etc., or a low-level programming language, such as a machine language, or an assembler.
  • a high- level programming language such as objective-C, C, C++, C#, Java, Python, Javascript, other scripting languages etc.
  • a low-level programming language such as a machine language, or an assembler.
  • - implementation of embodiments is hardware independent and may be implemented using any known or future developed hardware technology or any hybrids of these, such as a microprocessor or CPU (Central Processing Unit), MOS (Metal Oxide Semiconductor), CMOS (Complementary MOS), BiMOS (Bipolar MOS), BiCMOS (Bipolar CMOS), ECL (Emitter Coupled Logic), and/or TTL (Transistor-Transistor Logic).
  • CPU Central Processing Unit
  • MOS Metal Oxide Semiconductor
  • CMOS Complementary MOS
  • BiMOS BiMOS
  • BiCMOS BiCMOS
  • ECL Emitter Coupled Logic
  • TTL Transistor-Transistor Logic
  • - embodiments may be implemented as individual devices, apparatuses, units, means or functions, or in a distributed fashion, for example, one or more processors or processing functions may be used or shared in the processing, or one or more processing sections or processing portions may be used and shared in the processing, wherein one physical processor or more than one physical processor may be used for implementing one or more processing portions dedicated to specific processing as described,
  • an apparatus may be implemented by a semiconductor chip, a chipset, or a (hardware) module including such chip or chipset; - embodiments may also be implemented as any combination of hardware and software, such as ASIC (Application Specific 1C (Integrated Circuit)) components, FPGA (Field- programmable Gate Arrays) or CPLD (Complex Programmable Logic Device) components or DSP (Digital Signal Processor) components.
  • ASIC Application Specific 1C (Integrated Circuit)
  • FPGA Field- programmable Gate Arrays
  • CPLD Complex Programmable Logic Device
  • DSP Digital Signal Processor
  • - embodiments may also be implemented as computer program products, including a computer usable medium having a computer readable program code embodied therein, the computer readable program code adapted to execute a process as described in embodiments, wherein the computer usable medium may be a non-transitory medium.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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Abstract

Un appareil destiné à être utilisé par un élément ou une fonction de commande de réseau de communication est configuré pour commander une procédure de radiomessagerie sur un élément ou une fonction de communication, l'appareil comprenant au moins un ensemble circuit de traitement, et au moins une mémoire pour mémoriser des instructions devant être exécutées par l'ensemble circuit de traitement, la ou les mémoires et les instructions étant configurées pour amener, avec ledit ensemble circuit de traitement, l'appareil à au moins : déterminer qu'un élément ou une fonction de communication configuré pour utiliser une capacité ou une fonction de communication spécifique est situé dans une première zone de réseau d'un réseau de communication, la première zone de réseau ne fournissant pas la capacité ou la fonction de communication spécifique, recevoir et traiter une demande entrante en vue d'établir une connexion de communication avec l'élément ou la fonction de communication, la connexion de communication demandée étant basée sur l'utilisation de la capacité ou de la fonction de communication spécifique, déterminer si une condition de radiomessagerie étendue est satisfaite par l'élément ou la fonction de communication, et dans le cas où la condition de radiomessagerie étendue est satisfaite, provoquer le transfert d'un message de radiomessagerie vers l'élément ou la fonction de communication et déclencher une procédure d'établissement de communication améliorée pour prendre en charge l'établissement de la connexion de communication demandée sur la base de l'utilisation de la capacité ou de la fonction de communication spécifique en faisant intervenir une zone de réseau voisine qui fournit la capacité ou la fonction de communication spécifique.
PCT/EP2018/076097 2018-09-26 2018-09-26 Commande de radiomessagerie dans un scénario de réseau non homogène WO2020064095A1 (fr)

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