GB2386209A - A method of activating new software or a software upgrade at a network element of a telecommunications network - Google Patents

A method of activating new software or a software upgrade at a network element of a telecommunications network Download PDF

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Publication number
GB2386209A
GB2386209A GB0205285A GB0205285A GB2386209A GB 2386209 A GB2386209 A GB 2386209A GB 0205285 A GB0205285 A GB 0205285A GB 0205285 A GB0205285 A GB 0205285A GB 2386209 A GB2386209 A GB 2386209A
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software
network
network element
activation
parameter values
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Granted
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GB2386209B (en
GB0205285D0 (en
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Mohammad Khatib
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Nokia of America Corp
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Lucent Technologies Inc
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F8/00—Arrangements for software engineering
    • G06F8/60—Software deployment
    • G06F8/65—Updates

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  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A method is provided of activating new software or a software upgrade at a network element of a telecommunications network. The method first comprises during the software activation monitoring processing resources involved in the activation to determine parameter values. A resource usage indicator is then determined dependent on the parameter values. The indicator is then used to allocate resources to and/ or determine timing of a subsequent activation of new software or a software upgrade.

Description

<Desc/Clms Page number 1>
A METHOD OF ACTIVATING NEW SOFTWARE OR A SOFTWARE UPGRADE AT A NETWORK ELEMENT OF A TELECOMMUNICATIONS NETWORK, A TELECOMMUNICATIONS NETWORK, AND A SOFTWARE ACTIVATION MANAGEMENT STAGE Technical Field The present invention relates to a method of activating new software or a software upgrade at a network element of a telecommunications network. The present invention also relates to a telecommunications network comprising a network element and means operative to activating new software or a software upgrade at a network element. The present invention also relates to a software activation management stage operative to determine a resource usage indicator dependent upon processing resource parameters monitored during software activation Background of the Invention In a cellular telecommunications network, the network elements are often upgraded with new software to introduce some new features or to fix bugs, if any. In a UMTS (universal mobile telecommunications system) network,. it is envisaged that such upgrades will happen often, at least once every quarter year.
There are known situations where an upgrade has happened to consume resources, i. e occupy processors in the network elements, to such an extent and for so long that unacceptable network behaviour occurs during the upgrade resulting into network downtime and consequential revenue losses to the network operator. The network element, and sometimes even the whole network, runs into a panic state thereby resulting in a downtime of the order of hours. No known solution exists, except that the upgrade is executed at a time when there is expected to be little network traffic (such as 3 a. m. in the morning) to minimise the risk of network downtime and consequential revenue loss.
<Desc/Clms Page number 2>
Summary of the Invention The present invention provides a method of activating new software or a software upgrade at a network element of a telecommunications network. the method comprising during the software activation monitoring processing resources involved in the activation to determine parameter values, determining a resource usage indicator dependent on the parameter values, using the indicator to allocate resources to and/or determine timing of a subsequent activation of new software or a software upgrade.
Preferably the parameters relate to access congestion, response time, and/or processing capacity usage in the software activation at the network element.
Preferably the parameters comprise any of or any combination of: total
number of packages to be activated, total number of process threads created, maximum f number of simultaneous threads created, number of temporary files created, volume of swap memory used, system idle time (microseconds), response delay, level of access congestion, processing capacity usage, and total down time for which the network element was non-operational in the sense of not processing user data traffic.
Preferably the indicator is determined from the parameter values by a software activation management stage. The software activation management stage preferably stores the parameter values so as to then determine the indicator.
The software activation management stage is preferably in the network element.
Alternatively the software activation management stage is preferably in a managing element. Preferably the network is a Universal Mobile Telecommunications System UMTS network and the managing element is an Operations and Maintenance Centre OMC. The Operations and Maintenance Centre OMC preferably includes a visual display unit operative to display the indicator and means operative to enable a human to adjust the resources allocated and/or timing of a subsequent software activation.
The software activation management stage prefereablycommands storage of the parameter values by the network element.
<Desc/Clms Page number 3>
The network is preferably a Universal Mobile Telecommunications System UMTS network and the network element is a radio network controller RNC.
The present invention also provides a method of installing new software or a software upgrade in a network element comprising communicating the software to the network element, installing the software in the network element, and activating the software in a method as above.
The present invention also provides a telecommunications network comprising a network element and means operative to activating new software or a software upgrade at a network element, the means comprising monitoring means operative during the software activation to monitor processing resources involved in the activation to determine parameter values, indicator-determining means operative to determine a resource usage indicator dependent on the parameter values, control means operative to allocate resources to and/or determine timing of a subsequent activation of new software or a software upgrade dependent upon the indicator.
Preferably the indicator-determining means is a software activation management stage. Preferably the software activation management stage is operative to store the parameter values so as to then determine the indicator.
The software activation management stage is preferably in the network element.
Alternatively the software activation management stage is preferably in a managing element. The network is preferably a Universal Mobile Telecommunications System UMTS network, the managing element being an Operations and Maintenance Centre OMC. The Operations and Maintenance Centre OMC preferably includes a visual display unit operative to display the indicator and the control means, the control means being operative to enable a human to adjust the resources allocated and/or timing of a subsequent software activation.
Preferably, in use, the software activation management stage commands storage of the parameter values by the network element.
<Desc/Clms Page number 4>
A preferred network is a Universal Mobile Telecommunications System UMTS network, the network element being a radio network controller RNC.
The present invention also provides a software activation management stage operative to determine a resource usage indicator dependent upon processing resource parameters monitored during software activation in a telecommunications network element.
The software activation management stage is preferably also operative 9 t to do the monitoring of the processing resources involved in the software activation to determine the parameter values. The software activation management stage is preferably also operative to allocate resources to and/or determine timing of a subsequent activation of new software or a software upgrade dependent upon the indicator.
The present invention also provides a UMTS Operations and Maintenance Centre OMC comprising the software activation management stage.
The present invention also provides a UMTS radio network controller comprising the software activation management stage.
Preferred embodiments of the present invention advantageously introduce a quality criteria'upgrade performance indicator' (UPI) whereby it is possible to monitor the resources consumed ! required for an upgrade and hence optimising the system resources for future upgrade activity. Preferred embodiments determine a quality performance parameter'Upgrade Performance Indicator' (UPI) and process this to optimise the processing capacity of the network element to achieve efficient and reliable upgrade. By making use the performance parameter UPI, for example in a preferred UMTS network, the processing capacity required for a subsequent system upgrade is suitably planned for and optimised, hence minimising the network downtime and revenue loss incurred due to upgrade.
Brief Description of the Drawings A preferred embodiment of the present invention will now be described by way of example and with reference to the drawings in which : Figure 1 is a diagrammatic illustration of a software upgrade process. and
<Desc/Clms Page number 5>
Figure 2 is a diagram illustrating a UMTS telecommunications network.
Detailed Description A software upgrade of any network element involves steps of downloading then installing then activating the software. The software bundle is downloaded to the designated directory of the target network element (NE). This step is generally done in the background and is non-service affecting as the network element continues to operate and provide service to users.
Installation of the software occurs after decomposing the software bundle into its components and installing each component in its correct place within the network element's software architecture. Depending upon the architecture of the software in the network element, this step is generally non-service affecting.
Activation of the new software occurs by changing a link (i. e. a software subroutine call) from the previous to the new software and initialising the network element. This step of the upgrade involves downtime of the network element and service interruption.
Upgrading platform software (e. g. operating system software) or application software at a network element can be either straightforward or very tricky, depending on what is actually upgraded. For example, bug fix upgrades are simpler to handle than interface-related upgrades to platform or application software.
In some systems where the upgrade process of an network element is complicated, the whole upgrade process of network element is co-ordinated by a computer tool, namely an upgrade manager/agent (software upgrade manager SUMGR),. The software upgrade manager SUMGR is responsible for controlling and interacting with other processes running on the network element.
In some networks the software upgrade manager is resident at the network element.
In some other networks, the software upgrade manager SUMGR is resident on the managing element which controls the network element being upgraded and so controls the upgrade activity remotely. In particular in some systems the software upgrade manager SUMGR can be (or be part of) an element manager EM which is part of the remote managing element.
<Desc/Clms Page number 6>
Recording how resources are used in the software installation or upgrade It is possible to monitor various types of platform and interface parameters relating to access congestion, response time, and/or processing capacity usage in execution of software activation at the network element to produce a so-called upgrade performance indicator UPI. When an upgrade is applied to the network element, these parameters are logged in a file. e. g. locally at the network element, for later reference and processing. This logged information is then processed to calculate an upgrade performance indicator UPI for every upgrade activity (subsequent use of the indicator allowing resources to be better allocated in future upgrades).
The UPI determination process is tied to the upgrade process. During the activation of new software, the software upgrade manager SUMGR creates a tile to log the parameter values for each action of the upgrade activity.
As shown in Figure 1, the software upgrade manager (SUMGR) accesses the network element for activation of the software. It is assumed that software is already installed at the network element using an appropriate access interface. The software upgrade manager SUMGR then invokes a software activation command on network element. Before execution, the software upgrade manager SUMGR itself or a command agent thereof first opens a log file'UPI file'to record resource usage'UPI parameters'.
In embodiments in which a real time graphical display is provided, the same parameters are displayed via a management user interface such as a computer visual display unit VDU.
When the upgrade action is completed, the log file is saved at the network element and/or forwarded to the software upgrade manager SUMGR. An activation completed response is then sent to the software upgrade manager SUMGR.
If not already there, the log tile is then transferred to the software
upgrade manager SUMGR for processing the upgrade performance indicator UPI.
Z-1 Recommended Parameters Of UPI The following parameters are monitored by the software upgrade manager SUMGR for each major process in the software installation: Total number of packages to be activated, Total number of process threads (i. e sequences of operation) created.
Maximum number of simultaneous threads created,
<Desc/Clms Page number 7>
Number of temporary files created, Volume of swap memory used (Kb), System idle time (microseconds), Response delay (microseconds), Access congestion.
Processing capacity usage (%), and Total down time for which the element was non-operational in the sense of not processing user data traffic (seconds) A UPI value is then determined from some or all the parameter values according to a predetermined rule e. g. a weighted summation.
A preferred UMTS network In a preferred UMTS network as shown in Figure 2, the network element is a radio network controller RNC and the software upgrade manager SUMGR is at a managing element which is an Operation and Maintenance Centre OMC. Alternatively the software upgrade manager SUMGR resides at the network element i. e at the radio network controller RNC. Of course in networks including multiple OMCs and/or RNCs, each OMC or alternatively each RNC includes a software upgrade manager SUMGR.
As shown in Figure 2, each radio network controller controls one or more base stations (NodeB) for radio telecommunications with mobile user terminals (not shown).
Use of the UPI value The UPI value is a measure of the resources required for activation of new software and is used in determining the resources to be allocated to, and best time for, a subsequent activation of further new software. For example in the UMTS network where the SUMGR is at a radio network controller RNC, the UPI value is either forwared to the Operation and Maintenance Centre OMC in real time or stored at the radio network controller RNC then transferred using file transfer protocol FTP to the Operation and Maintenance Centre OMC. A human operator sees a visual display of the UPI value on a visual display unit VDU and (a) schedules activations so as to minimise the likelihood of damaging network performance in the handling of user traffic, and/or (b) reconfigures i. e reassigns processors in the respective radio network controller RNC
<Desc/Clms Page number 8>
and/or Operation and Maintenance Centre OMC architecture so as to provide sufficient resources for subsequent software activations.

Claims (24)

  1. Claims : 1. A method of activating new software or a software upgrade at a network element of a telecommunications network, the method comprising during the software activation monitoring processing resources involved in the activation to determine parameter values, determining a resource usage indicator dependent on the parameter values, using the indicator to allocate resources to and/or determine timing of a subsequent activation of new software or a software upgrade.
  2. 2. A method according to claim 1, in which the parameters relate to access congestion, response time, and/or processing capacity usage in the software activation at the network element.
  3. 3. A method according to claim 1 or claim 2, in which the parameters comprise any of or any combination of: total number of packages to be activated, total number of process threads created, maximum number of simultaneous threads created, number of temporary files created, volume of swap memory used, system idle time (microseconds), response delay, level of access congestion, processing capacity usage, and total down time for which the network element was non-operational in the sense of not processing user data traffic.
  4. 4. A method according to any preceding claim, in which the indicator is determined from the parameter values by a software activation management stage.
  5. 5. A method according to claim 4, in which the software activation management stage stores the parameter values so as to then determine the indicator.
  6. 6. A method according to claim 4 or claim 5, in which the software activation management stage is in the network element.
  7. 7. A method according to claim 4 or claim 5, in which the software activation management stage is in a managing element.
    <Desc/Clms Page number 10>
  8. 8.. A method according to claim 7, in which the network is a Universal Mobile Telecommunications System UMTS network and the managing element is an Operations and Maintenance Centre OMC.
  9. 9. A method according to claim 8, in which the Operations and Maintenance Centre OMC includes a visual display unit operative to display the indicator and means operative to enable a human to adjust the resources allocated and/or timing of a subsequent software activation.
  10. 10. A method according to any of claims 4 to 9, in which the software activation management stage commands storage of the parameter values by the network element.
  11. 11. A method according to any preceding claim, in which the network is a Universal Mobile Telecommunications System UMTS network and the network element is a radio network controller RNC.
  12. 12. A method. of installing new software or a software upgrade in a network element comprising communicating the software to the network element. installing the software in the network element, and activating the software according to the method of any
    preceding claim. c
  13. 13. A telecommunications network comprising a network element and means operative to activating new software or a software upgrade at a network element, the means comprising monitoring means operative during the software activation to monitor processing resources involved in the activation to determine parameter values, indicator-determining means operative to determine a resource usage indicator dependent on the parameter values, control means operative to allocate resources to and/or determine timing of a subsequent activation of new software or a software upgrade dependent upon the indicator.
  14. 14. A network according to claim 13, in which the indicator-determining means is a software activation management stage.
    <Desc/Clms Page number 11>
  15. 15. A network according to claim 14, in which the software activation management stage is operative to store the parameter values so as to then determine the indicator.
  16. 16. A network according to claim 14 or claim 15, in which the software activation management stage is in the network element.
  17. 17. A network according to claim 14 or claim 15, in which the software activation management stage is in a managing element.
  18. 18. A network according to claim 17, which is a Universal Mobile Telecommunications System UMTS network, the managing element being an Operations and Maintenance Centre OMC.
  19. 19. A network according to claim 18, in which the Operations and Maintenance Centre OMC includes a visual display unit operative to display the indicator and the control means, the control means being operative to enable a human to adjust the resources allocated and/or timing of a subsequent software activation.
  20. 20. A network according to any of claims 14 to 19, in which, in use, the software activation management stage commands storage of the parameter values by the network element.
  21. 21. A network according to any of claims 13 to 20, which is a Universal Mobile Telecommunications System UMTS network, the network element being a radio network controller RNC.
  22. 22. A software activation management stage operative to determine a resource usage indicator dependent upon processing resource parameters monitored during software activation in a telecommunications network element.
  23. 23. A telecommunications network comprising a network element and means operative to activate new software or a software upgrade at the network element as hereinbefore described with reference to the Figures.
    23. A software activation management stage according to claim 22, also operative to do the monitoring of the processing resources involved in the software activation to determine the parameter values.
    <Desc/Clms Page number 12>
    24. A software activation management stage according to claim 22 or claim 23, also operative to allocate resources to and/or determine timing of a subsequent activation of new software or a software upgrade dependent upon the indicator.
    25. A UMTS Operations and Maintenance Centre OMC comprising a software activation management stage according to any of claims 22 to
  24. 24.
    26. A UMTS radio network controller comprising a software activation management stage according to any of claims 22 to 24.
    27. A method of activating new software or a software upgrade at a network element of a telecommunications network as hereinbefore described with reference to the Figures.
    28. A telecommunications network as hereinbefore described with reference to the
    Figures.
    L
    <Desc/Clms Page number 13>
    Amendments to the claims have been filed as follows Claims
    1. A method of activating new software or a software upgrade at a network element of a telecommunications network, the method comprising during the software activation monitoring processing resources involved in the activation to determine parameter values, determining a resource usage indication value dependent on the parameter values, using the indication value to allocate resources to and/or determine timing of a subsequent activation of new software or a software upgrade.
    2. A method according to claim 1, in which the parameters relate to access congestion, response time, and/or processing capacity usage in the software activation at the network element.
    3. A method according to claim 1 or claim 2, in which the parameters comprise any of or any combination of : total number of packages to be activated, total number of process threads created, maximum number of simultaneous threads created, number of temporary files created, volume of swap memory used, system idle time response delay, level of access congestion, processing capacity usage, and total down time for which the network element was not processing user data traffic.
    4. A method according to any preceding claim, in which the indication value is determined from the parameter values by software activation management means.
    5. A method according to claim 4, in which the software activation management means stores the parameter values so as to then determine the indication value.
    6. A method according to claim 4 or claim 5, in which the software activation management means is in the network element.
    <Desc/Clms Page number 14>
    7. A method according to claim 4 or claim 5, in which the software activation management means is in a managing element.
    8. A method according to claim 7, in which the network is a Universal Mobile Telecommunications System UMTS network and the managing element is an Operations and Maintenance Centre OMC.
    9. A method according to claim 8, in which the Operations and Maintenance Centre OMC includes a visual display unit operative to display the indication value and means operative to enable a human to adjust the resources allocated and/or timing of a subsequent software activation.
    10. A method according to any of claims 4 to 9, in which the software activation management means commands storage of the parameter values by the network element.
    11. A method according to any preceding claim, in which the network is a Universal Mobile Telecommunications System UMTS network and the network element is a radio network controller RNC.
    12. A method of installing new software or a software upgrade in a network element comprising communicating the software to the network element, installing the software in the network element, and activating the software according to the method of any preceding claim.
    13. A telecommunications network comprising a network element and means operative to activate new software or a software upgrade at a network element, the means comprising monitoring means operative during the software activation to monitor processing resources involved in the activation to determine parameter values, indication value determining means operative to determine a resource usage indication value dependent on the parameter values, control means operative to allocate resources to and/or determine timing of a subsequent activation of new software or a software upgrade dependent upon the indication value.
    <Desc/Clms Page number 15>
    14. A network according to claim 13, in which the indication value determining means is software activation management means.
    15. A network according to claim 14, in which the software activation management means is operative to store the parameter values so as to then determine the indication value.
    16. A network according to claim 14 or claim 15, in which the software activation management means is in the network element.
    17. A network according to claim 14 or claim 15, in which the software activation management means is in a managing element.
    18. A network according to claim 17, which is a Universal Mobile Telecommunications System UMTS network, the managing element being an Operations and Maintenance Centre OMC.
    19. A network according to claim 18, in which the Operations and Maintenance Centre OMC includes a visual display unit operative to display the indication value and the control means, the control means being operative to enable a human to adjust the resources allocated and/or timing of a subsequent software activation.
    20. A network according to any of claims 14 to 19, in which, in use, the software activation management means commands storage of the parameter values by the network element.
    21. A network according Lo any of claims 13 to 20, which is a Universal Mobile Telecommunications System UMTS network, the network element being a radio network controller RNC.
    22. A method of activating new software or a software upgrade at a network element of a telecommunications network as hereinbefore described with reference to the Figures.
    <Desc/Clms Page number 16>
GB0205285A 2002-03-06 2002-03-06 A method of activating new software or a software upgrade at a network element of a telecommunications network, a telecommunications network, Expired - Fee Related GB2386209B (en)

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GB0205285A GB2386209B (en) 2002-03-06 2002-03-06 A method of activating new software or a software upgrade at a network element of a telecommunications network, a telecommunications network,

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GB0205285D0 GB0205285D0 (en) 2002-04-17
GB2386209A true GB2386209A (en) 2003-09-10
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Cited By (3)

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WO2007059703A1 (en) 2005-11-24 2007-05-31 Huawei Technologies Co., Ltd. A remote load system of network device and method thereof
CN100421071C (en) * 2005-03-18 2008-09-24 上海华为技术有限公司 Updating method for distance equipment system software
WO2011008141A1 (en) * 2009-07-14 2011-01-20 Telefonaktiebolaget L M Ericsson (Publ) Method and Arrangement in a Telecommunication System

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Proceedings of the Global Communications Conference, 29th November 1993, Vol 2, pages 703 to 707, Hedetaka Ishimoto and Katsuyuki Fujita, "Dynamic program updating in packet switching systems" *
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100421071C (en) * 2005-03-18 2008-09-24 上海华为技术有限公司 Updating method for distance equipment system software
WO2007059703A1 (en) 2005-11-24 2007-05-31 Huawei Technologies Co., Ltd. A remote load system of network device and method thereof
EP1953957A1 (en) * 2005-11-24 2008-08-06 Huawei Technologies Co., Ltd. A remote load system of network device and method thereof
EP1953957A4 (en) * 2005-11-24 2008-10-29 Huawei Tech Co Ltd A remote load system of network device and method thereof
US8595332B2 (en) 2005-11-24 2013-11-26 Huawei Technologies Co., Ltd. Remote loading system and method for network equipment
WO2011008141A1 (en) * 2009-07-14 2011-01-20 Telefonaktiebolaget L M Ericsson (Publ) Method and Arrangement in a Telecommunication System
US8942137B2 (en) 2009-07-14 2015-01-27 Telefonaktiebolaget L M Ericsson (Publ) Method and arrangement in a telecommunication system
EP2454903B1 (en) * 2009-07-14 2018-05-02 Telefonaktiebolaget LM Ericsson (publ) Method and arrangement in a telecommunication system

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GB0205285D0 (en) 2002-04-17

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Effective date: 20080306