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WO2008040719A1 - Procédé et dispositif de fonctionnement un réseau de communication mobile - Google Patents

Procédé et dispositif de fonctionnement un réseau de communication mobile Download PDF

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Publication number
WO2008040719A1
WO2008040719A1 PCT/EP2007/060428 EP2007060428W WO2008040719A1 WO 2008040719 A1 WO2008040719 A1 WO 2008040719A1 EP 2007060428 W EP2007060428 W EP 2007060428W WO 2008040719 A1 WO2008040719 A1 WO 2008040719A1
Authority
WO
WIPO (PCT)
Prior art keywords
measurement result
base station
radio base
enb
mobile communication
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2007/060428
Other languages
German (de)
English (en)
Inventor
Thomas Stadler
Thomas Ulrich
Burghard Unteregger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Solutions and Networks GmbH and Co KG
Original Assignee
Nokia Siemens Networks GmbH and Co KG
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
Publication date
Application filed by Nokia Siemens Networks GmbH and Co KG filed Critical Nokia Siemens Networks GmbH and Co KG
Publication of WO2008040719A1 publication Critical patent/WO2008040719A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H04W36/302—Reselection being triggered by specific parameters by measured or perceived connection quality data due to low signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points

Definitions

  • the invention relates to a method and apparatus for operating a mobile communication network according to the preamble of the independent claims, wherein at least one measurement result message within a call transfer, called handover, from a first radio cell to another second radio cell between a subscriber station and a radio base station within be transmitted to the mobile communication network
  • measurement methods and measurement result reporting mechanisms are required to guarantee reliable operation of the mobile communication network.
  • These measurement methods may be performed by various network devices, such as a subscriber station, a base station (eg, eNodeB), or other network devices.
  • Some network devices, such as eNodeB have the ability to request measurement result messages by sending a command to the measurement result message request to another network entity, eg, a subscriber station.
  • Measurement results are provided by the network entity, eg, a subscriber station that received the command.
  • This network entity will eventually send its measured results in the form of measurement result messages from where the measurement result messages, eg eNodeB, have been requested.
  • Various triggering mechanisms are available for sending measurement result messages.
  • UTRAN UMTS Terrestrial Radio Access Network
  • LTE Long Term Evolution
  • LTE Long Term Evolution
  • the network device requesting measurement result messages may start, modify, or stop commands for requesting measurement result messages.
  • the network unit from which the measurement results are requested eg the subscriber station, sends back measurement result messages.
  • the network unit requesting the measurement result messages uses these measurement results for further decisions. After a handover, the next eNodeB restarts measuring mechanisms.
  • the network unit eg subscriber station
  • the network unit from which the measurement result messages are requested is informed to stop measurement mechanisms before the handover if the target eNodeB is not interested in obtaining the measurement results.
  • the network unit eg subscriber station
  • commands for requesting measurement result messages from the previous eNodeB are taken by the target eNodeB to avoid interruptions in the measurement result reporting
  • there are currently no approaches such as long term evaluations of Measurement results messages in the previous eNodeB, eg statistics should be handled in the future.
  • the invention consists in that in a handover at least one measurement result message between a responsible for a first radio cell source radio base station and a for a second radio cell destination radio base station is exchanged.
  • the at least one measurement result message is exchanged between the radio base stations via so-called X2 interfaces.
  • the at least one measurement result message may comprise pure unprocessed measurement results and / or processed measurement results and / or measurement results from previous measurements and / or prepared statistics data.
  • Conditions for the occurrence of the measurement results or statistics data can be passed on in measurement result messages and / or in own messages.
  • the destination radio base station informs the source radio base station of the need for such measurement result messages, i. Whether or not the destination radio base station needs the at least one measurement result message.
  • the invention further relates to devices or communication devices for carrying out the above-mentioned method.
  • Algorithms such as for the optimization of handovers are not necessarily based only on short-term available measurement results, but also on longer-term evaluations (averaging, statistics). If these are no longer available to the new eNodeB after a handover, optimizations can no longer be applied.
  • the invention thus enables the seamless use of the values determined over a longer period of time (throughput, bit error rates, Measured average of measurements on common neighboring cells).
  • a mechanism is employed that allows long-term readings or statistics by passing received measurement result messages or derived statistics from a source eNodeB to a target eNodeB, regardless of the number of eNodeBs involved in handover sequences, until the long-term measurements from the requesting network unit (eNodeB) are stopped. Without passing on received measurement result messages, these can not be combined in the requesting network entities (e.g., eNodeB's) and can not be used for long-term readings or statistics.
  • the invention is preferably independent of the possibilities of either accumulating the measurement results or processing them further after a certain time, e.g. the determination over a certain period of time or the provision of statistics.
  • RRM Radio Resource Management
  • a centralized approach puts the crucial network entity in a central position of the mobile communication system, while in a decentralized approach decisions can be made by each eNodeB. Therefore, routing of received measurement result messages is preferably applied in a decentralized radio resource management environment.
  • accumulated or processed measurement results are forwarded via so-called X2 interfaces between the eNodeBs. Further details of the invention will be explained in more detail in an embodiment, which is illustrated inter alia in the drawing.
  • the figure schematically shows a mobile communication network comprising network units in connection with Long Term Evolution.
  • each eNodeB should use the measurement data forwarded by eNodeBs previously connected to subscriber stations. These measurement data can either be unmodified or already processed as measurement results or processed data, e.g. Averages or statistics based on past measurement results. Without the inventive approach, each eNodeB could make its own decisions based on measurement result messages. However, the following eNodeB could not continue to use the measurement result messages directed to the previous eNodeB.
  • An application example of the invention may be, for example, the calculation of the current throughput between a subscriber station and an eNodeB to support a call access control. Since traffic may vary from time to time, such calculation may be very imprecise if there are only measurement result messages between two subsequent handovers.
  • Another example may be related to a Block Error Rate (BLER) or Bit Error Rate: Especially for low block error rates (eg 10 to 6)), a single eNodeB can probably never reach a position with significant statistics because the subscriber station has previously switched to a different one by handover eNodeB has been passed before any single block error has occurred.
  • BLER Block Error Rate
  • Bit Error Rate Especially for low block error rates (eg 10 to 6)
  • a single eNodeB can probably never reach a position with significant statistics because the subscriber station has previously switched to a different one by handover eNodeB has been passed before any single block error has occurred.
  • conditions under which measurements and statistics are to be carried out can be forwarded, e.g. resulting BLER, a specific target SNR (Signal to Noise Ratio) and / or a particular modulation scheme.
  • resulting BLER e.g. a specific target SNR (Signal to Noise Ratio) and / or a particular modulation scheme.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de fonctionnement d'un réseau de communication mobile, au moins un message de résultat de mesure (S1) dans le cadre d'un transfert d'appel, dénommé handover, étant transféré d'une première cellule radio vers une autre cellule radio entre une station participante et une station radio de base (eNB), au sein du réseau de communication mobile. Ce(s) message(s) de résultat de mesure (S1) est échangé entre une station radio de base source (eNB) responsable pour la première cellule radio et une station radio de base cible (eNB) responsable pour la seconde cellule radio. L'invention concerne par ailleurs des dispositifs pour la mise en oevre du procédé mentionné ci-dessus.
PCT/EP2007/060428 2006-10-04 2007-10-02 Procédé et dispositif de fonctionnement un réseau de communication mobile Ceased WO2008040719A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006046977.1 2006-10-04
DE102006046977A DE102006046977A1 (de) 2006-10-04 2006-10-04 Verfahren und Vorrichtung zum Betreiben eines mobilen Kommunikationsnetzes

Publications (1)

Publication Number Publication Date
WO2008040719A1 true WO2008040719A1 (fr) 2008-04-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/060428 Ceased WO2008040719A1 (fr) 2006-10-04 2007-10-02 Procédé et dispositif de fonctionnement un réseau de communication mobile

Country Status (2)

Country Link
DE (1) DE102006046977A1 (fr)
WO (1) WO2008040719A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102196480A (zh) * 2009-09-30 2011-09-21 华为技术有限公司 消息处理方法、装置
US9414270B2 (en) 2009-09-30 2016-08-09 Huawei Technologies Co., Ltd. Message handling method and device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1592275A1 (fr) * 2004-04-29 2005-11-02 Matsushita Electric Industrial Co., Ltd. Déplacement aussi partiellement d'une fonctionnalité de gestion de ressources radio d'un premier station de base à un autre dans un réseau d'accès radio distribué

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1592275A1 (fr) * 2004-04-29 2005-11-02 Matsushita Electric Industrial Co., Ltd. Déplacement aussi partiellement d'une fonctionnalité de gestion de ressources radio d'un premier station de base à un autre dans un réseau d'accès radio distribué

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"UNIVERSAL MOBILE TELECOMMUNICATIONS SYSTEM (UMTS); FEASIBILITY STUDY FOR EVOLVED UNIVERSAL TERRESTRIAL RADIO ACCESS (UTRA) AND UNIVERSAL TERRESTRIAL RADIO ACCESS NETWORK (UTRAN) (3GPP TR 25.912 VERSION 7.1.0 RELEASE 7)", ETSI STANDARDS, EUROPEAN TELECOMMUNICATIONS STANDARDS INSTITUTE, SOPHIA-ANTIPO, FR, no. V710, September 2006 (2006-09-01), pages 1 - 58, XP014035381, ISSN: 0000-0001 *
NOKIA ET AL: "Intra-LTE Handover operation", INTERNET CITATION, 8 May 2006 (2006-05-08), XP007903973, Retrieved from the Internet <URL:ftp://ftp.3gpp.org/tsg_ran/WG2_RL2/TSGR2_53/Documents/R2-061135.zip> [retrieved on 20080131] *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102196480A (zh) * 2009-09-30 2011-09-21 华为技术有限公司 消息处理方法、装置
US9414270B2 (en) 2009-09-30 2016-08-09 Huawei Technologies Co., Ltd. Message handling method and device
US9414271B2 (en) 2009-09-30 2016-08-09 Huawei Technologies Co., Ltd. Message handling method and device

Also Published As

Publication number Publication date
DE102006046977A1 (de) 2008-04-10

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