WO2015099588A1 - Autorisation de la fourniture d'un service à un terminal mobile dans un réseau de communication sans fil - Google Patents

Autorisation de la fourniture d'un service à un terminal mobile dans un réseau de communication sans fil Download PDF

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Publication number
WO2015099588A1
WO2015099588A1 PCT/SE2013/051626 SE2013051626W WO2015099588A1 WO 2015099588 A1 WO2015099588 A1 WO 2015099588A1 SE 2013051626 W SE2013051626 W SE 2013051626W WO 2015099588 A1 WO2015099588 A1 WO 2015099588A1
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WO
WIPO (PCT)
Prior art keywords
network node
network
service
node
mobile terminal
Prior art date
Application number
PCT/SE2013/051626
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English (en)
Inventor
Hugo Tullberg
Jacob STRÖM
Pål FRENGER
Original Assignee
Telefonaktiebolaget L M Ericsson (Publ)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Telefonaktiebolaget L M Ericsson (Publ) filed Critical Telefonaktiebolaget L M Ericsson (Publ)
Priority to PCT/SE2013/051626 priority Critical patent/WO2015099588A1/fr
Publication of WO2015099588A1 publication Critical patent/WO2015099588A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/50—Service provisioning or reconfiguring
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/60—Software deployment
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
    • G06F9/5083—Techniques for rebalancing the load in a distributed system
    • G06F9/5088—Techniques for rebalancing the load in a distributed system involving task migration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
    • H04L41/5041—Network service management, e.g. ensuring proper service fulfilment according to agreements characterised by the time relationship between creation and deployment of a service
    • H04L41/5054—Automatic deployment of services triggered by the service manager, e.g. service implementation by automatic configuration of network components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/34—Network arrangements or protocols for supporting network services or applications involving the movement of software or configuration parameters 
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
    • H04L67/61—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources taking into account QoS or priority requirements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/18—Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

Definitions

  • the invention relates to a method at a mobility managing node of enabling provision of a service to a mobile terminal in a wireless communications network, and a mobility managing node performing the methods.
  • the present invention further relates to a computer program and a computer program product.
  • apps software applications
  • smartphones smartphones, tablets and other mobile devices
  • people are generally interacting with their smartphones in two different ways; either through native apps running on their phones (downloaded apps or apps available when the phone is purchased) or using a browser and a web page, possibly implemented in the phone as a so called web app.
  • a native app is installed directly onto the device, and users typically acquire these apps through an online store.
  • Native apps run fast and smoothly on the user's device since (a) the data used by the app can be stored locally, (b) native code, such as a compiled C source code, can be used instead of interpreted code (e.g., JavaScript), and (c) the programmer has access to application programming interfaces (APIs) to render graphics quickly using a built-in graphics processing unit (GPU).
  • APIs application programming interfaces
  • the Facebook app may be fast when scrolling is undertaken, but when a feed is to be updated, a message saying "updating" may appear for several seconds before the feed updates.
  • a bank app is another example; the user interface may be quick and responsive within the app, but as soon as the user tries to access his or her transactions, several seconds will lapse before the information is actually shown on the screen.
  • the latency experienced by the user can be divided into three categories: latency that originates from execution speed on the user device itself, latency that originates from the wireless network, and latency that originates from the fixed part of internet.
  • the first type of latency can be more or less eliminated by using a well programmed native app on the device. In the case of a web app the JavaScript code will execute a bit slower but should still not be generating latencies that are in the order of seconds.
  • the latency for the wireless network can be significant, but modern wireless access technologies have greatly reduced latencies.
  • the remaining latency is that of the Internet itself, i.e., the round-trip-time from the cellular network to the server that hosts the content and back to the cellular network again.
  • Edge Computing in which technology services are executed on network node(s) closer to the edge of the communication network, i.e., closer to the mobile terminal. A problem still remains in how to handle services and/or
  • An object of the present invention is to solve, or at least mitigate one or more of these problems in the art and provide an improved method and network node for enabling provision of service to a mobile terminal in a wireless communications network.
  • the method comprises identifying a second network node in the wireless communications network on which an application software providing the service is to be executed in order to improve a performance metric associated with the service provided to the mobile terminal.
  • the method further comprises initiating transfer of the application software from the first node currently executing the application software to the second network node, wherein the performance metric associated with the service is improved when the selected network node executes the transferred application software.
  • a mobility managing node for enabling provision of a service to a mobile terminal in a wireless communications network, which service is being provided by a first network node to the mobile terminal on behalf of a service provider.
  • the mobility managing node comprises a processing unit and a memory, which memory contains instructions executable by the processing unit, whereby the mobility managing node is operative to identify a second network node in the wireless communications network on which an application software providing the service is to be executed in order to improve a performance metric associated with the service provided to the mobile terminal.
  • the mobility managing node is further operative to initiate transfer of the application software from the first network node currently executing the application software to the second network node, wherein the performance metric associated with the service is improved when the second network node executes the transferred application software.
  • UE in the form of a mobile phone, a personal digital assistant (PDA), a smart phone, a tablet, a laptop, a media player, etc.
  • a network node such as a base station
  • PDA personal digital assistant
  • a smart phone a tablet, a laptop, a media player, etc.
  • communicates with a network node such as a base station, it may receive a service from the base station executing an application software to provide the service on behalf of a service provider such as, e.g., a remote server, originally providing the service.
  • the application software providing at least a part of the service when executed at the base station is occasionally referred to in the following as a "base station app".
  • the base station app thus enables functionality originally provided by a remote server to be moved closer to the mobile terminal in order to, e.g., reduce latency and/or improve user experience.
  • the present invention advantageously determines on which network node the base station app should be executed in order to optimize, or at least improve, a performance metric associated with the service provided to the mobile terminal, and transfers the base station app from a first network node currently executing the base station app to provide the service to the mobile terminal to a second network node, wherein the performance metric is improved when the base station app is executed on the second network node.
  • the performance metric may be considered to improve either if the metric is increased or decreased, respectively, depending on the type of metric. For instance, in case of latency, performance is considered to improve if latency is decreased. In case of user experience, on the other hand, performance is considered to increase if user experience is increased.
  • a network node referred to in the following as a “mobility managing node”, or “mobility manager”, advantageously acquires the performance metric, for instance by calculating the metric or by receiving information pertaining to the performance metric from various network nodes in order to derive the metric, and initiates the transfer of the application software to the second network node for which the performance metric associated with the service is increased when the second network node executes the transferred application software.
  • a number of network parameters may be taken into account when determining the performance metric, such as, e.g., network performance, delay or latency, user experience, and resource utilization.
  • the mobility manager advantageously initiates a transfer of the base station app from the network node on which it currently is executing to another network node in order to increase the performance metric.
  • performance/ or and user experience may be optimized, in addition to providing network flexibility.
  • a base station app maybe transferred between nodes of the Radio Access Network (RAN) or even a Core Network (CN) at different logical levels.
  • a base station app maybe transferred from a base station, i.e., an access node of the RAN such as a NodeB or eNodeB, to a controlling/managing node of the RAN, such as a Radio Network Controller (RNC) or a Serving Gateway (SWG).
  • RNC Radio Network Controller
  • SWG Serving Gateway
  • the base station app may also be transferred from a controlling node, or any other node such as a gateway or a dedicated node for executing base station apps, to an access node, i.e., closer to the mobile terminal to which the service is provided. Thereby, latency is reduced.
  • the first and the second network nodes may be nodes of the same or different logical level or type.
  • the first and the second network nodes maybe access nodes or base stations (e.g., NodeB or eNodeB), controlling nodes or gateways of the RAN (e.g., RNC or SWG), dedicated nodes for executing base station apps, or nodes of a CN interconnected with the RAN.
  • access nodes or base stations e.g., NodeB or eNodeB
  • controlling nodes or gateways of the RAN e.g., RNC or SWG
  • dedicated nodes for executing base station apps or nodes of a CN interconnected with the RAN.
  • FIG. 1 illustrates a prior art communications network in which the present invention could be implemented
  • Figure 2 illustrates the communications network of Figure 1, but where a mobility manager according to an embodiment of the present invention is implemented in order to provide for base station app mobility;
  • Figure 3 illustrates a flow chart of a method at the mobility manager of enabling provision of the service according to an embodiment of the present invention
  • Figure 4 shows a schematic overview of a further exemplifying wireless communication system in which the present invention can be implemented.
  • Figure 5 illustrates a mobility managing node enabling provision of a service to a mobile terminal in a wireless communications network according to an embodiment of the present invention.
  • FIG. 1 illustrates a prior art communications network 100 in which the present invention could be implemented.
  • a wireless mobile terminal 101 such as a smart phone, communicates with a RAN access node, i.e., a base station (BS) 102 over an air interface.
  • BS base station
  • the communications network 100 pertains to a Long Term Evolution (LTE) network
  • the base station 102 is typically an evolved NodeB (eNodeB) located in a so called Evolved Universal Mobile Telecommunications System (UMTS) Radio Access Network (E-UTRAN).
  • eNodeB evolved NodeB
  • UMTS Universal Mobile Telecommunications System
  • E-UTRAN Evolved Universal Mobile Telecommunications System
  • the base station 102 is typically a NodeB located in a so called UMTS Radio Access Network (UTRAN).
  • GSM Global System for Mobile Communications
  • the base station 102 is typically a Base Transceiver Station (BTS) located in a so called GSM Enhanced Data for Global Evolution (EDGE) Radio Access Network (GERAN).
  • BTS Base Transceiver Station
  • EDGE GSM Enhanced Data for Global Evolution
  • GERAN GSM Enhanced Data for Global Evolution
  • Numerous network types can be envisaged where the present invention may be implemented.
  • the base station 102 communicates with a server 104 providing one or more services via the Internet 103.
  • the base station 102 is interconnected with the Internet 103 via one or more network nodes of the RAN, such as, e.g., an RNC or an SGW 105.
  • a second base station 106 with which the mobile terminal 101 may communicate as a consequence of a handover of the mobile terminal 101 from the first base station 102 to the second base station 106.
  • the concept of handover is known in the art of cellular radio access technologies.
  • the mobile terminal 101 when a user of the mobile terminal 101 wishes to access a service provided by the server 104, such as an Internet banking service which physically resides at the server 104, the mobile terminal 101 sends a request to this effect.
  • the request for the service is received at the base station 102, which in practice could, e.g., be a request of the user to check her account balance and is submitted by the user by entering the web page of the Internet banking service provided by her bank or by using a native Internet banking app on her mobile terminal 101.
  • the base station 102 communicates with the server 104 via the Internet 103, and intermediate node 105, which responds by providing the service to the mobile terminal 101 via the base station 102.
  • the base station 102 i.e., the access node of the RAN of communications network 100
  • the base station 102 is the network node arranged closest to the "edge" of the communications network 100, i.e., it is the network node arranged closest to the mobile terminal 101.
  • application software providing services to mobile terminals are executed at network nodes closer to the edge of the communications network 100. For instance, instead of having the server 104 provide the service to the mobile terminal 101 via the base station 102, and the potentially slow Internet 103, the service is provided by a more closely located node. Hence, the service originally provided by the server 104, or at least parts of it, will instead be provided by the base station 102.
  • this maybe done by having the server 104 delivering an application software (i.e., the "base station app") to the base station 102, where this application software is executed to provide the mobile terminal 101 with the requested service in the form of, e.g., the current account balance or any other requested service, on behalf of the server 104.
  • an application software i.e., the "base station app”
  • this application software is executed to provide the mobile terminal 101 with the requested service in the form of, e.g., the current account balance or any other requested service, on behalf of the server 104.
  • a non-static approach with respect to the locality of the base station app, i.e., on which network node the base station is executed for providing the service, or at least part of the service, to the user of the mobile terminal 101.
  • a network node such as a base station or any other node in the RAN, such as an RNC, an SWG, or a Base Station Controller (BSC) in a GSM network
  • BSC Base Station Controller
  • FIG. 2 illustrates a communications network 200 which is similar to communications network 100 of Figure 1, but where a network node referred to as a mobility manager 107 according to an embodiment of the present invention is implemented in order to provide for base station app mobility.
  • Mobility management of the base station app concerns transferring a base station app between different network nodes with an aim to optimize, or at least improve, performance of the base station app, and/or the network, and/or the user experience, as determined by one or more performance metrics.
  • the different network nodes between which the base station app is transferred may be of the same type, or logical level, or of different types or logical levels.
  • a task of the mobility manager 107 is to determine on which network node the base station app should be executed to achieve optimal performance when providing a service to the mobile terminal 101. This is performed by the mobility manager 107 by determining a performance metric and by transferring, if performance can be improved or it is likely that performance can be improved, the base station app from a first network node, on which it currently is executing, to a second network node from which the service provided to the mobile terminal 101 with improved performance.
  • the base station app is currently executing on the base station 102 for providing a service to the mobile terminal 101 on behalf of the server 104.
  • the mobility manager 107 determines a performance metric associated with the service provided to the mobile terminal 101. For instance, the mobility manager 107 may determine that the user experience of the service provided by the base station 102 to the mobile terminal 101 is poor. Further, the mobility manager 107 may determine that the user experience of the service will improve, or is likely to improve, if the service is provided by a different network node, such as network node 105, instead.
  • Network node 105 may be a controlling node or a gateway of the RAN, such as an RNC, an SWG, or an BSC.
  • network node 105 may also be a dedicated node for executing base station apps.
  • such dedicated nodes are located close to the access nodes in order to ensure short latencies when providing services to mobile terminals.
  • the mobility manager 107 will advantageously initiate transfer of the base station app from the base station 102 to the second network node 105, thereby improving user experience. This may, e.g., be the case if the base station 102 has limited resources, resulting in inferior performance.
  • the base station app is currently executing on the network node 105, such as an RNC, SWG, or BSC, providing a service to the mobile terminal 101.
  • the mobility manager 107 determines that a performance metric is improved, or is expected to improve, if the base station app is executed on a node closer to the mobile terminal 101 to which the service is provided. For instance, this may be the case if the communication between the network node 105 providing the service and the mobile terminal 101 suffers from too large latency. In such a case, the mobility manager 107 will advantageously initiate transfer of the base station app from the network node 105 to the base station 102 serving the mobile terminal 101, thereby reducing latency.
  • the base station app is currently executing on the base station 102 for providing a service to the mobile terminal 101 on behalf of the server 104.
  • the mobility manager 107 determines a performance metric associated with the service provided to the mobile terminal 101. For instance, the mobility manager 107 may determine that the quality of service (QoS) of the communication between the base station 102 and the mobile terminal 101 is poor. If the service provided by the base station app relates to, e.g., safety, such as traffic support or even is related to remotely driving a vehicle in which the mobile terminal 101 is located, low latencies and communication reliability must be ensured.
  • QoS quality of service
  • the mobility manager 107 will advantageously initiate transfer of the base station app from the base station 102 to the mobile terminal 101, such that the base station app can execute locally at the mobile terminal 101 in order to provide the service. Executing the base station app at the mobile terminal 101 is advantageous in that a failure of the communication between the base station app and the mobile terminal 101 is minimized.
  • the base station app may be executed at the mobile terminal 101 at least until a newly determined performance metric indicates that it can be transferred back to the base station 102 due to a higher expected QoS in the communication between the base station 102 and the mobile terminal 101, as determined by the mobility manager 107.
  • Transferring the base station app from the mobile terminal 102 to the base station is advantageous in that battery resources are saved and storage resources can be freed up.
  • the base station app is currently executing on the mobile terminal 101 (for instance following the transfer described hereinbefore) for providing the service to the mobile terminal 101 on behalf of the server 104.
  • the mobility manager 107 determines a performance metric associated with the service provided to the mobile terminal 101. For instance, the mobility manager 107 may determine (or receive an indication) that the battery- powered mobile terminal 101 is running low on battery and would benefit from having the base station app executing (again) on the base station 102 to provide the service to the mobile terminal 101. It should be noted that the base station app could be transferred to any other appropriate network node, such as network node 105, if that would further improve the performance metric.
  • the mobility manger 107 may continuously monitor traffic volume and/ or delay between the mobile terminal 101 and the base station app on one hand, and the base station app and the originating server 104 on the other hand, and the mobility manager 107 may initiate a transfer of the base station app to a network node such as base station 102 or any other network node, e.g., network node 105 the RAN, thereby optimizing the performance in some respect, e.g., minimized perceived latency, minimized network load, and/or maximized reliability in providing the service.
  • a network node such as base station 102 or any other network node, e.g., network node 105 the RAN
  • the mobility manager 107 initiates a transfer of the base station app from the first base station 102, where it is currently executing, to the mobile terminal 101 in response to determining that a performance metric is thereby improved. For instance, this may be the case if the mobility manager receives an indication that the mobile terminal 101 is about to perform a handover from the first base station 102 to the second base station 106, as is known in the art.
  • the performance metric may, e.g., pertain to a reliability of the connection between the mobile terminal 101 and the base station app.
  • the mobility manager 107 may initiate the transfer of the base station app from the mobile terminal 101 to the second base station 106.
  • the base station app is transferred from the first base station 102 to the second base station 106 via the mobile
  • the base station app may further be preloaded at the base station 102, or even locally generated at the base station 102, to subsequently be provided to the mobile terminal 101 when the service is provided (or vice versa).
  • the service provided by means of having the base station 102 execute the base station app is to provide news from the web server 104 hosted by a service provider in the form of a daily news paper; if the user of the mobile terminal 101 occasionally visits the home page of the news paper via a web browser or a native app, the base station app maybe uploaded to the base station to provide the news paper service.
  • the mobile terminal 102 need not traverse a potentially slow Internet 103 to fetch the first page data, but only need to communicate via the air interface between the mobile terminal 101 and the base station 102 to acquire the data needed for providing the service, i.e., a web page which can be rendered at the mobile terminal 101.
  • any current data related to the service should further be transferred from the first to the second network node such that the service can be continued seamlessly at the second network node and provided to the mobile
  • DRM Digital Rights Management
  • a mobile terminal 101 which has the right to execute a certain base station app can simply offload the computations by transferring the base station app to a base station.
  • version control one can envisage that an older mobile terminal man not be able to run the latest version of a certain base station app, which would be available from the server 104 providing the service related to such base station app, and may keep an older version which is transferred to a base station or any other network node in order to provide the service to the mobile terminal.
  • Figure 3 illustrates a flow chart of a method at the mobility manager 107 of enabling provision of the service according to an embodiment of the present invention, which service is being provided by a first network node to the mobile terminal on behalf of a service provider.
  • the method according to embodiments of the present invention performed at the mobility
  • a processing unit 108 embodied in the form of one or more microprocessors arranged to execute a computer program 110 downloaded to a suitable storage medium 109 associated with the microprocessor, such as a Random Access Memory (RAM), a Flash memory, or a hard disk drive.
  • the processing unit 108 is arranged to carry out the method according to embodiments of the present invention when the appropriate computer program 110, comprising computer-executable instructions, is downloaded to the storage medium 109 and executed by the processing unit 108.
  • the storage unit 108 embodied in the form of one or more microprocessors arranged to execute a computer program 110 downloaded to a suitable storage medium 109 associated with the microprocessor, such as a Random Access Memory (RAM), a Flash memory, or a hard disk drive.
  • RAM Random Access Memory
  • Flash memory Flash memory
  • the processing unit 108 is arranged to carry out the method according to embodiments of the present invention when the appropriate computer program 110, comprising computer-executable instructions, is downloaded to the storage medium 109 and executed by the
  • the medium 109 may also be a computer program product comprising the computer program 110.
  • the computer program 110 may be transferred to the storage medium 109 by means of a suitable computer program product, such as a floppy disk or a memory stick.
  • the computer program 110 may be downloaded to the storage medium 109 over a network.
  • the processing unit 108 may alternatively be embodied in the form of a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), a complex programmable logic device (CPLD), etc.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field-programmable gate array
  • CPLD complex programmable logic device
  • a first step S101 the mobility manager 107 identifies a second network node in the wireless communications network on which an application software providing the service is to be executed in order to improve a performance metric associated with the service provided to the mobile terminal. Thereafter, in step S102, the mobility manager 107 initiates transfer of the application software from the first network node currently executing the application software to the second network node for which the performance metric associated with the service is improved when the second network node executes the transferred application software.
  • Figure 4 shows a schematic overview of a further exemplifying wireless communication system 400 in which the present invention can be
  • the wireless communication system 400 is an LTE based system. It should be pointed out that the terms "LTE” and "LTE based” system is here used to comprise both present and future LTE based systems, such as, for example, advanced LTE systems. It should be appreciated that although Figure 4 shows a wireless communication system 400 in the form of an LTE based system, the embodiments described herein may also be utilized in connection with other wireless communication systems, such as, e.g., GSM or UMTS, comprising nodes and functions that correspond to the nodes and functions of the system in Figure 4.
  • GSM Global System for Mobile communications
  • UMTS Universal Mobile communications
  • the wireless communication system 400 comprises two base stations 102, 110 in the form of eNodeBs, operatively connected to a Serving Gateway (SGW), in turn operatively connected to a Mobility Management Entity (MME) and a Packet Data Network Gateway (PGW), which in turn is operatively connected to a Policy and Charging Rules Function (PCRF).
  • SGW Serving Gateway
  • MME Mobility Management Entity
  • PGW Packet Data Network Gateway
  • PCRF Policy and Charging Rules Function
  • the eNodeB is a radio access node that interfaces with a mobile terminal 101, e.g., a UE or a smartphone.
  • the eNodeBs 102, 110 form the radio access network E-UTRAN for LTE communicating with the UE 101 over an air interface such as LTE-Uu.
  • EPC Evolved Packet Core
  • EPS Evolved Packet System
  • the SGW routes and forwards user data packets over the Si-U interface, whilst also acting as the mobility anchor for the user plane l6 during inter-eNodeB 102, 110 handovers and as the anchor for mobility between LTE and other 3rd Generation Partnership Project (3GPP) technologies (terminating S4 interface and relaying the traffic between 2G/3G systems and PGW).
  • 3GPP 3rd Generation Partnership Project
  • the SGW terminates the downlink data path and triggers paging when downlink data arrives for the UE 101, and further manages and stores UE contexts, e.g., parameters of the IP bearer service and network internal routing information.
  • the SGW communicates with the MME via interface S11 and with the PGW via the S5 interface. Further, the SGW may communicate with the UMTS radio access network UTRAN and with the GSM EDGE ("Enhanced Data rates for GSM Evolution”) Radio Access Network (GERAN) via the S12 interface.
  • GSM EDGE Enhanced Data rates for GSM Evolution
  • GERAN Enhanced Data rates for GSM Evolution Radio Access Network
  • the MME is responsible for idle mode UE tracking and paging procedure including retransmissions. It is involved in the bearer activation/deactivation process and is also responsible for choosing the SGW for a UE at the initial attach and at time of intra-LTE handover involving core network node relocation. It is responsible for authenticating the user by interacting with the Home Subscriber Server (HSS).
  • HSS Home Subscriber Server
  • the Non-Access Stratum (NAS) signaling terminates at the MME and it is also responsible for generation and allocation of temporary identities to UEs via the Si-MME interface. It checks the authorization of the mobile terminal 101 to camp on the service provider's Public Land Mobile Network (PLMN) and enforces UE roaming restrictions.
  • PLMN Public Land Mobile Network
  • the MME is the termination point in the network for ciphering/integrity protection for NAS signaling and handles the security key management.
  • the MME also provides the control plane function for mobility between LTE and 2G/ 3G access networks with the S3 interface terminating at the MME from the Serving General Packet Radio Service (GPRS) Support Node (SGSN).
  • GPRS General Packet Radio Service
  • the MME also terminates the S6a interface towards the home HSS for roaming UEs. Further, there is an interface S10 configured for communication between MMEs for MME relocation and MME-to-MME information transfer.
  • the PGW provides connectivity to the UE to external packet data networks (PDNs) by being the point of exit and entry of traffic for the UE.
  • a UE may have simultaneous connectivity with more than one PGW for accessing multiple PDNs.
  • the PGW performs policy enforcement, packet filtering for each user, charging support, lawful Interception, and packet screening.
  • the PGW is to act as the anchor for mobility between 3GPP and non-3GPP technologies such as WiMAX and 3GPP2 (CDMA lX and EvDO).
  • the interface between the PGW and the packet data network 103, being for instance the Internet, is referred to as the SGi.
  • the packet data network may be an operator external public or private packet data network or an intra operator packet data network, e.g., for provision IP Multimedia Subsystem (IMS) services.
  • IMS IP Multimedia Subsystem
  • the server 104 providing one or more services has previously been discussed in detail.
  • the PCRF determines policy rules in real-time with respect to the radio terminals of the system. This may, e.g., include aggregating information in real-time to and from the core network and operational support systems, etc. of the system so as to support the creation of rules and/ or automatically making policy decisions for user radio terminals currently active in the system based on such rules or similar.
  • the PCRF provides the PGW with such rules and/or policies or similar to be used by the acting PGW as a Policy and Charging Enforcement Function (PCEF) via interface Gx.
  • PCEF Policy and Charging Enforcement Function
  • the PCRF further communicates with the packet data network via the Rx interface.
  • the mobility manager 107 may be implemented in the MME in order to provide for base station app mobility by determining a performance metric and initiating transfer of the base station app from a first network node, on which the base station app is currently executing, to an appropriate second network node on the basis of the determined performance metric.
  • the base station app may be transferred between network nodes of the same type, or logical level, or different types or logical levels.
  • Embodiments of the invention are not limited to specific nodes mentioned in relation to the embodiments disclosed herein. Rather, any existing node, or function, as defined for LTE, UMTS, or GSM, networks may be adapted to provide base station app mobility in accordance with
  • Figure 5 illustrates a mobility managing node 300 enabling provision of a service to a mobile terminal in a wireless communications network according to an embodiment of the present invention.
  • the service is being provided by a first network node to the mobile terminal on behalf of a service provider.
  • the mobility managing node 300 comprises identifying means 301 adapted to identify a second network node in the wireless communications network on which an application software providing the service is to be executed in order to increase a performance metric associated with the service provided to the mobile terminal, and initiating means 302 adapted to initiate transfer of the application software from the first network node, currently executing the application software, to the second network node, the performance metric associated with the service being increased when the second network node executes the transferred application software.
  • the identifying means 301 and the initiating means 302 may comprise a communications interface for receiving information from and sending information to the mobile terminal and the provider of the service, or any other appropriate network node.
  • the mobility managing node 300 may further comprise a local storage.
  • the identifying means 301 and the initiating means 302 may (in analogy with the description given in connection to Figure 2) be implemented by a processor embodied in the form of one or more microprocessors arranged to execute a computer program downloaded to a suitable storage medium associated with the microprocessor.
  • the identifying means 301 and the initiating means 302 may comprise one or more transmitters and/or receivers and/or transceivers, comprising analogue and digital components and a suitable number of antennae for radio communication, and could even be comprised in the same functional unit, such as a transceiver.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un nœud de gestion de mobilité (107) pour permettre la fourniture d'un service à un terminal mobile (101) dans un réseau de communication sans fil (200), lequel service est fourni par un premier nœud de réseau (102) au terminal mobile (101) au nom d'un fournisseur de services (104). Le nœud de gestion de mobilité (107) comprend une unité de traitement (108) et une mémoire (109), laquelle mémoire (109) contient des instructions pouvant être exécutées par l'unité de traitement (108), ce par quoi le nœud de gestion de mobilité (107) est apte à identifier un second nœud de réseau (106) dans le réseau de communication sans fil (200) sur lequel un logiciel d'application fournissant le service doit être exécuté de façon à améliorer une métrique de performances associée au service fourni au terminal mobile (101). Le nœud de gestion de mobilité (107) est en outre apte à initier un transfert du logiciel d'application du premier nœud de réseau (102) exécutant actuellement le logiciel d'application au second nœud de réseau (106), la métrique de performances associée au service étant améliorée lorsque le second nœud de réseau (106) exécute le logiciel d'application transféré.
PCT/SE2013/051626 2013-12-29 2013-12-29 Autorisation de la fourniture d'un service à un terminal mobile dans un réseau de communication sans fil WO2015099588A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017017655A (ja) * 2015-07-06 2017-01-19 日本電気株式会社 無線アクセスネットワークノード、エッジサーバ、ポリシ管理ノード、及びこれらの方法
JP2017017656A (ja) * 2015-07-06 2017-01-19 日本電気株式会社 エッジサーバ及びその方法
WO2017137091A1 (fr) * 2016-02-12 2017-08-17 Telefonaktiebolaget Lm Ericsson (Publ) Calcul d'indicateurs de performance de service
CN113190358A (zh) * 2021-05-25 2021-07-30 曙光信息产业(北京)有限公司 作业分配方法、装置、电子设备及可读存储介质

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US20130185380A1 (en) * 2012-01-16 2013-07-18 International Business Machines Corporation System and Method for Transferring Applications and Session State to a Secondary Device

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US20050203962A1 (en) * 2004-03-09 2005-09-15 Dong Zhou Framework and associated apparatus for the adaptive replication of applications with server side code units
US20130185380A1 (en) * 2012-01-16 2013-07-18 International Business Machines Corporation System and Method for Transferring Applications and Session State to a Secondary Device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017017655A (ja) * 2015-07-06 2017-01-19 日本電気株式会社 無線アクセスネットワークノード、エッジサーバ、ポリシ管理ノード、及びこれらの方法
JP2017017656A (ja) * 2015-07-06 2017-01-19 日本電気株式会社 エッジサーバ及びその方法
WO2017137091A1 (fr) * 2016-02-12 2017-08-17 Telefonaktiebolaget Lm Ericsson (Publ) Calcul d'indicateurs de performance de service
CN113190358A (zh) * 2021-05-25 2021-07-30 曙光信息产业(北京)有限公司 作业分配方法、装置、电子设备及可读存储介质

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