EP1334632A2 - Procede de surveillance de cellules radio voisines dans un systeme de radiocommunication - Google Patents

Procede de surveillance de cellules radio voisines dans un systeme de radiocommunication

Info

Publication number
EP1334632A2
EP1334632A2 EP01994037A EP01994037A EP1334632A2 EP 1334632 A2 EP1334632 A2 EP 1334632A2 EP 01994037 A EP01994037 A EP 01994037A EP 01994037 A EP01994037 A EP 01994037A EP 1334632 A2 EP1334632 A2 EP 1334632A2
Authority
EP
European Patent Office
Prior art keywords
radio
base station
communication system
time interval
subscriber station
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
EP01994037A
Other languages
German (de)
English (en)
Inventor
Volker Breuer
Jörg Schniedenharn
Frank Wegner
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP1334632A2 publication Critical patent/EP1334632A2/fr
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • 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
    • H04W36/304—Reselection being triggered by specific parameters by measured or perceived connection quality data due to measured or perceived resources with higher communication quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H04W36/0088—Scheduling hand-off measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • information for example voice, image information or other data
  • the electromagnetic waves are emitted at carrier frequencies that lie in the frequency band provided for the respective system.
  • CDMA or TD / CDMA transmission methods CDMA Code Division Multiple Access, TD / CDMA Time Division CDMA
  • UMTS Universal Mobile Telecommunications System
  • Frequencies in the frequency band of approximately 2000 MHz are provided.
  • the RRC radio resource controller
  • the RNC radio network controller
  • UE - user equipment subscriber stations
  • Important measurements are, for example, level measurements from neighboring radio cells or base stations in order to initiate a handover to this radio cell at a later point in time.
  • Other applications for such measurements are, for example, position determination or paging functions. In principle, measurements are of course also possible within your own existing connection.
  • the setting or reconfiguration of a service must also be carried out for a large number of closely adjacent subscriber stations, for example within a radio cell, in order to reduce the interference caused.
  • reconfiguration signaling is sent from the base station to the corresponding subscriber stations.
  • Known approaches according to the prior art are based on the fact that the base station sends a corresponding measurement job to the subscriber station (s) and thereby pauses or correspondingly configures the existing service.
  • This configuration consists, for example, of time, code, frequency, modulation, transmission line, puncturing, etc.
  • changes may also be possible during a time slot. Any combinations and time-distributed patterns are also possible.
  • a corresponding application of this method is provided in the UMTS mobile radio system described above.
  • transmission gaps are inserted in which the receiver of the subscriber station is given the opportunity to observe one or more neighboring radio systems.
  • These adjacent radio systems can be, for example, radio cells or base stations of a UMTS mobile radio system that supports the TDD mode or of the known GSM mobile radio system.
  • the transmission device can also be generated to generate transmission gaps.
  • the generation of transmission gaps in the inherently continuous data stream takes place using the so-called compressed mode. Data to be sent in the transmission gap is actually transmitted at a higher data rate before and after the transmission gap.
  • the subscriber station first tries to synchronize itself with the frame structure of the neighboring radio system, since this is generally not synchronous with the system that is currently serving.
  • the time slot carrying a broadcast channel or synchronization channel.
  • the broadcast channel is, for example, the so-called BCCH (Broadcast Control Channel) in the GSM mobile radio system, and in the TDD mode of the UMTS mobile radio system the P-CCPCH (Primary Co mon Control Physical Channel) carrying the BCH (Broadcast Control Channel).
  • BCCH Broadcast Control Channel
  • P-CCPCH Primary Co mon Control Physical Channel
  • 3 fD CD 01 3 3 rt- P- rr 3 P- er rr; r H ⁇ ⁇ ? 3 J • H ⁇ sQ rt ⁇ P. tu P So fD £ 3 H- H- oi P- 3 PJ ⁇ 3 rr ⁇ M hr
  • CD rt- 3 fD P- 3 P- J P 3 PJ ⁇ rr P- O ⁇ ⁇ 01 01 ⁇ Q 3
  • a starting point can be defined as the point in time, for example by specifying a specific time slot.
  • the time interval is adapted by a component of the first radio communication system in accordance with the parameter signaled by the subscriber station, the changed parameters of the time interval in turn being signaled to the subscriber station.
  • the parameters of the time interval are set by a central component, the RNC (Radio Network Controller).
  • 1 is a block diagram of two neighboring radio communication systems
  • FIG. 2 shows an exemplary definition of a time interval for observing the neighboring radio communication system
  • FIG. 3 shows a flowchart of the method according to the invention.
  • a first base station NB1 (Node B) supports an FDD mode of the UMTS mobile radio system and is via a radio network controller
  • a second base station NB2 supports, for example, a TDD mode of the UMTS mobile radio system and is connected directly to an Internet-based network with other components of the mobile radio system.
  • the base stations NB1 and NB2 each supply a radio cell ZI and Z2 with radio resources.
  • a subscriber station UE (user equipment) is located, for example, in an overlap area of the radio cells ZI, Z2 of the two base stations NB1, NB2 and is currently connected to the first base station NB1.
  • the subscriber station UE observes transmissions, for example of the broadcast channel BCH of the second base station NB2, at regular intervals or controlled by specific events and evaluates them.
  • a handover is initiated from the first base station NB1 to the second base station NB2.
  • the transmission in the FDD mode of the first radio communication system takes place continuously, a physical transmission channel being defined by a frequency and a connection-specific spreading code (CDMA code).
  • CDMA code connection-specific spreading code
  • the subscriber station UE tunes the E receiver to the frequency of the second base station NB2 and tries to detect a channel that is useful for synchronization with the time structure of the second radio communication system, such as the broadcast channel BCH or synchronization channel SCH, and subsequently evaluate.
  • the first base station NB1 supports transmission in accordance with the FDD mode of the UMTS mobile radio system.
  • the transmission takes place continuously in a physical transmission channel, which is carried out by a subscriber-specific
  • the transmission channel is divided into time frames FR with 15 time slots S each.
  • the second base station NB2 supports transmission in accordance with the TDD mode of the UMTS mobile radio system.
  • the time frame structure corresponds to that of the FDD mode, i.e. each time frame FR is divided into 15 time slots, however there is no continuous transmission, but a physical transmission channel is defined by a frequency, a time slot S and a spreading code.
  • transmission takes place both in the uplink (English uplink) to the base station and in the downward direction (English downlink) to the subscriber station UE in a common frequency band.
  • the two systems are not synchronized with one another, this is shown by a time offset of the start of the respective time frame FR in FIG. 2.
  • a start and a length of the transmission gap are signaled to the subscriber station UE by the currently serving first base station NB1.
  • the start of the time interval which corresponds to the transmission gap, is defined by the signaling of a time slot number TGSN (Transmission Gap Starting Slot Number).
  • TGSN Transmission Gap Starting Slot Number
  • the length of the transmission gap is defined by further signaling the number of time slots TGL (Transmission Gap Length).
  • T3 0- ⁇ p- 3 ⁇ ⁇ tr LP y P 1 3 tr P 3 ⁇ ⁇ tr ⁇ is ⁇ & z
  • the monitoring of GSM and TDD from UMTS FDD mode turns out to be the most important application. Since there is no synchronicity between two different systems, it is difficult for the base stations to specify a time for the measurement. However, some systems (eg FDD, TDD, TD-SCDMA) have the same frame length or a corresponding multiple, which keeps the time of measurement sufficiently constant for a long time in relation to a time system. Thus, after the first measurement of the other system or a complete time frame of the other radio system, by means of which a position of the object to be measured (for example radio channel) is known, the subscriber station can specify a minimum transmission gap by requesting a desired start and length of the measurement.
  • FDD Frequency Division Duplex

Landscapes

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

Abstract

Selon la présente invention, au moins un paramètre d'un intervalle de temps, pour la surveillance d'émissions d'une deuxième station de base d'un deuxième système de radiocommunication à une station d'abonné, est signalisé par une première station de base d'un premier système de communication, au moins un événement particulier dans les émissions de la deuxième station de base est détecté par la station d'abonné dans l'intervalle de temps signalisé et une adaptation d'au moins un des paramètres de l'intervalle de temps est signalisé à la première station de base par la station d'abonné.
EP01994037A 2000-11-10 2001-11-12 Procede de surveillance de cellules radio voisines dans un systeme de radiocommunication Ceased EP1334632A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10055638 2000-11-10
DE10055638 2000-11-10
PCT/DE2001/004240 WO2002039758A2 (fr) 2000-11-10 2001-11-12 Procede de surveillance de cellules radio voisines dans un systeme de radiocommunication

Publications (1)

Publication Number Publication Date
EP1334632A2 true EP1334632A2 (fr) 2003-08-13

Family

ID=7662756

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01994037A Ceased EP1334632A2 (fr) 2000-11-10 2001-11-12 Procede de surveillance de cellules radio voisines dans un systeme de radiocommunication

Country Status (4)

Country Link
EP (1) EP1334632A2 (fr)
CN (1) CN1237830C (fr)
AU (1) AU2002221559A1 (fr)
WO (1) WO2002039758A2 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1467584A1 (fr) * 2003-04-11 2004-10-13 Telefonaktiebolaget LM Ericsson (publ) Méthode et appareil pour transfert de liaison entre systèmes
DE60319503T2 (de) * 2003-04-11 2009-05-28 Telefonaktiebolaget Lm Ericsson (Publ) Verfahren zur Synchronisierung in einem mobilen Funkendgerät
DE102004004092B3 (de) 2004-01-27 2005-05-25 Siemens Ag Mobiles Endgerät zum Empfang paketorientierter Rundfunksignale
US20060040656A1 (en) * 2004-08-17 2006-02-23 Kotzin Michael D Mechanism for hand off using access point detection of synchronized subscriber beacon transmissions
US7702343B2 (en) * 2005-04-04 2010-04-20 Qualcomm Incorporated Efficient gap allocation for cell measurements in asynchronous communication networks
CN100421516C (zh) * 2005-06-24 2008-09-24 华为技术有限公司 异频测量的测量时间确定方法、异频测量方法及通信终端
US8068835B2 (en) * 2005-10-27 2011-11-29 Qualcomm Incorporated Tune-away and cross paging systems and methods
US9247467B2 (en) 2005-10-27 2016-01-26 Qualcomm Incorporated Resource allocation during tune-away
US8134977B2 (en) 2005-10-27 2012-03-13 Qualcomm Incorporated Tune-away protocols for wireless systems
EP1850533B1 (fr) 2006-04-28 2010-11-03 Research In Motion Limited Techniques de communication de trains de données pour appareils de communication mobiles fonctionnant dans les sessions de transmission de données
RU2009143675A (ru) 2007-04-26 2011-06-20 Интердиджитал Текнолоджи Корпорейшн (Us) Способ и устройство механизма измерения и реализации схемы эффективного пейджинга и реализации схемы широковещания в выделенной соте mbms в системах lte
WO2008151549A1 (fr) * 2007-06-07 2008-12-18 Huawei Technologies Co., Ltd. Procédé, équipement de réseau et dispositif permettant de mesurer les signaux provenant de cellules voisines et de mesurer la durée indiquée par l'intervalle requis par les cellules voisines
US20080318577A1 (en) * 2007-06-25 2008-12-25 Interdigital Technology Corporation Method and apparatus for supporting inter-frequency and inter-radio access technology handover
WO2009114421A2 (fr) 2008-03-07 2009-09-17 Nortel Networks Limited Procédé et système pour une représentation de longueur de paramètre de surdébit de temps système réduite pour une communication entre technologies d'accès radio
CN102647730B (zh) * 2011-02-18 2014-12-24 华为技术有限公司 一种邻区信息发送和接收方法、移动终端及基站

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Publication number Priority date Publication date Assignee Title
GB2297460B (en) * 1995-01-28 1999-05-26 Motorola Ltd Communications system and a method therefor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0239758A2 *

Also Published As

Publication number Publication date
AU2002221559A1 (en) 2002-05-21
CN1488228A (zh) 2004-04-07
CN1237830C (zh) 2006-01-18
WO2002039758A2 (fr) 2002-05-16
WO2002039758A3 (fr) 2002-08-15

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