WO2001013663A1 - Procede d'etablissement d'une liaison de signalisation - Google Patents

Procede d'etablissement d'une liaison de signalisation Download PDF

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Publication number
WO2001013663A1
WO2001013663A1 PCT/DE2000/002688 DE0002688W WO0113663A1 WO 2001013663 A1 WO2001013663 A1 WO 2001013663A1 DE 0002688 W DE0002688 W DE 0002688W WO 0113663 A1 WO0113663 A1 WO 0113663A1
Authority
WO
WIPO (PCT)
Prior art keywords
signaling
information
identification information
subscriber station
channel
Prior art date
Application number
PCT/DE2000/002688
Other languages
German (de)
English (en)
Inventor
Egon Schulz
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to EP00956137A priority Critical patent/EP1205087A1/fr
Publication of WO2001013663A1 publication Critical patent/WO2001013663A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/002—Transmission of channel access control information
    • H04W74/008—Transmission of channel access control information with additional processing of random access related information at receiving side
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
    • H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
    • 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
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the invention relates to a method for establishing a signaling connection between a base station and a subscriber station of a radio communication system.
  • messages In radio communication systems, messages (voice, image information or other data) are transmitted via transmission channels with the aid of electromagnetic waves (radio interface).
  • the transmission takes place both in the downlink (downlink) from the base station to the subscriber station and in the uplink direction (uplink) from the subscriber station to the base station.
  • time division multiplexing FDMA
  • TDMA time slot multiplexing
  • CDMA code division multiplexing
  • TDD time division duplex
  • Page 78 discloses that a subscriber station uses a special signaling channel R CH (Random Access Channel) to request a transmission channel from a base station when establishing a connection.
  • R CH Random Access Channel
  • the segments for addressing different subscribers are advantageously sent in succession in a time slot.
  • a time slot for example, several pieces of identification information, which i.a. Contain information about characteristics of the first signaling channel from different received subscriber stations, sent together.
  • information about the midamble, time slots, etc. is sent.
  • the segments of the identification information are, for example, from the parameters, i.e. the information about spreading code, midamble, subchannel, etc. and from segments of the signaling information. It is thus possible to restructure the sequence of the segments sent on the basis of the parameters of the first signaling channel.
  • the subscriber station particularly advantageously temporarily switches off the power supply to the receiving device if, for example, the information about the spreading code is not addressed to the subscriber station, so that subsequent time slots only serve to address other subscriber stations. As a result, the power consumption for the reception and evaluation of entire time slots can be saved.
  • the energy supply to the evaluation device is temporarily switched off.
  • the quiescent current of the evaluation device is thus switched off, which further reduces the power consumption of the subscriber station.
  • Parameters of the first signaling channel for example the CDMA code, the midamble (training sequence), the time of transmission of the subchannel, etc., are particularly advantageous ⁇ MM P>
  • FIG. 1 shows a block diagram of a radio communication system, in particular a mobile radio system
  • FIG. 3 shows a schematic representation of the embedding of bursts of a signaling channel in a time slot
  • FIG. 4 shows a schematic illustration of the chronological order of the segments of the identification information
  • FIG. 5 shows a schematic illustration of the chronological order of segments of different identification information
  • FIG. 6 shows a signaling diagram for establishing a signaling connection.
  • the radio communication system shown in FIG. 1 and designed as an example as a mobile radio system consists of a multiplicity of mobile switching centers MSC which are networked with one another or which provide access to a fixed network PSTN. Furthermore, these mobile switching centers MSC are each connected to at least one device for allocating radio-technical resources RNC. Each of these devices RNC in turn enables a connection to at least one base station BS.
  • This base station BS is a radio station that establishes and signals communication connections to mobile or stationary subscriber stations MS within a radio coverage area C via a radio interface.
  • the functionality of this structure is used by the method according to the invention. Use in, for example, a wireless subscriber line system (access network) is also possible.
  • two signaling connections VI, V2 are exemplary for a request to establish a connection Ü transfer of user data and signaling information si between two subscriber stations MS and MSX and a base station BS ⁇ shown.
  • Signaling information si is sent from the transmitting device MSE of the subscriber station MS to the receiving device BEE of the base station BS via a first signaling channel R ⁇ CH (Random Access Channel).
  • R ⁇ CH Random Access Channel
  • the subscriber stations MS, MSX use the first signaling channel R CH in random multiple access (according to the principle of the slotted aloha method). If, alternatively, many first signaling channels R ⁇ CH are available, for example through the use of spreading codes sk, different training sequences tseq and several time slots ts (see FIG. 2), other access methods are conceivable since blocking the first signaling channel R ⁇ CH is less likely.
  • the base station BS evaluates the clearly strongest received signals of all first signaling channels R ⁇ CH in which a signal was received.
  • a transmitting device BSE of the base station BS sends identification information ii in a second signaling channel AGCH for addressing to a receiving device MEE of the subscriber station MS, whose first signaling channel R ⁇ CH has been evaluated by the base station BS.
  • time slot tsO to tsl4 with a correspondingly long protection time gp may be sent.
  • first signaling information si for example only the reason for the connection and a short training sequence tseq, are sent from the subscriber station MS to the base station BS, it is possible to send further subchannels RB within a time slot ts. Consequently, further transmission times ta, tm are advantageous in this case.
  • the fourth segment sf the midamble i.
  • FIG. 5 shows a rearranged sequence of the segments sfl and sf2 of different identification information iil and ii2.
  • the CDMA codes sk of the identification information iil and ii2 are first transmitted with the first two segments sfl. Subsequently, for example in the next time slot, the middle messages with the identification information iil and ii2 are transmitted with the following segments sf2.
  • FIG. 6 shows a signaling diagram for an exemplary embodiment of the method according to the invention.
  • a connection setup attempt is carried out by a subscriber station MS based on the radio communication system of FIG. 1.
  • the subscriber station MS listens to a general signaling channel BCCH, in which general information is periodically transmitted via the radio communication system.
  • the general signaling channel BCCH is sent in parallel by all base stations BS.
  • step 2 the subscriber station MS initiates a connection to the base station BS, the signal cn CL 0 d: to> Pl rt P ⁇ d S na cn C ⁇ y Q o tsi 0 C ⁇ ⁇ C ⁇ C ⁇ P- ⁇ rt ⁇ cn y Q ⁇ ⁇ Pi P J
  • P P- ⁇ C ⁇ PP 2 PO O: Pt ⁇ P- ⁇ cn 3 d rt er P ⁇ P C ⁇ rt na P C ⁇ d to tP PP d Z 0 rt H ⁇ p- P öd 0 N ⁇ • n ffi C ⁇ ⁇ 0- iQ C ⁇ ⁇ i X P- d ⁇ Pt ⁇ ⁇ rt er 0 P- 0 C ⁇ ⁇ H 0 0 P C ⁇ na d 0 d
  • merstation MS switched off to save electricity.
  • a different structure of the segmentations can be signaled via the general signaling channel BCCH.

Abstract

Selon l'invention, pour l'établissement d'une liaison de signalisation entre une station de base (BS) et une station d'abonné (MS) d'un système de communication mobile, des informations de signalisation (si) pour demande de canal sont envoyées dans un premier canal de signalisation (RACH), par la station d'abonné, à la station de base. La station de base évalue les informations de signalisation reçues et au moins une information d'identification (ii) servant à l'adressage d'une station d'abonné est envoyée à la station d'abonné, dans un second canal de signalisation (AGCH). L'information d'identification est divisée en plusieurs segments que la station d'abonné évalue séquentiellement. Lorsqu'un segment qui est adressé à une autre station d'abonné est trouvé, l'évaluation est interrompue.
PCT/DE2000/002688 1999-08-17 2000-08-10 Procede d'etablissement d'une liaison de signalisation WO2001013663A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00956137A EP1205087A1 (fr) 1999-08-17 2000-08-10 Procede d'etablissement d'une liaison de signalisation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19938895.4 1999-08-17
DE19938895A DE19938895C1 (de) 1999-08-17 1999-08-17 Verfahren zum Aufbau einer Signalisierungsverbindung

Publications (1)

Publication Number Publication Date
WO2001013663A1 true WO2001013663A1 (fr) 2001-02-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2000/002688 WO2001013663A1 (fr) 1999-08-17 2000-08-10 Procede d'etablissement d'une liaison de signalisation

Country Status (3)

Country Link
EP (1) EP1205087A1 (fr)
DE (1) DE19938895C1 (fr)
WO (1) WO2001013663A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003075586A1 (fr) * 2002-03-06 2003-09-12 Koninklijke Philips Electronics N.V. Procede de reduction de consommation de courant dans un systeme de communication radio et appareil associe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0889668A2 (fr) * 1997-06-30 1999-01-07 Nec Corporation Dispositif de gestion de communication comportant une partie de réception comprenant un filtre d'addresses
WO1999009776A1 (fr) * 1997-08-15 1999-02-25 Northern Telecom Limited Procede et appareil permettant d'ameliorer l'etablissement d'une communication
US5881242A (en) * 1997-01-09 1999-03-09 International Business Machines Corporation Method and system of parsing frame headers for routing data frames within a computer network

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19723090C2 (de) * 1997-06-02 2003-09-25 Siemens Ag Verfahren, Mobilstation und Basisstation zum Verbindungsaufbau in einem Funk-Kommunikationssystem
DE19810285A1 (de) * 1998-03-10 1999-09-23 Siemens Ag Verfahren, Funk-Kommunikationssystem und Mobilstation zum Bestimmen von Kanaleigenschaften
DE19843982B4 (de) * 1998-09-24 2006-07-27 Siemens Ag Verfahren und Basisstation zur Kanalzuweisung in einem Funk-Kommunikationssystem

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5881242A (en) * 1997-01-09 1999-03-09 International Business Machines Corporation Method and system of parsing frame headers for routing data frames within a computer network
EP0889668A2 (fr) * 1997-06-30 1999-01-07 Nec Corporation Dispositif de gestion de communication comportant une partie de réception comprenant un filtre d'addresses
WO1999009776A1 (fr) * 1997-08-15 1999-02-25 Northern Telecom Limited Procede et appareil permettant d'ameliorer l'etablissement d'une communication

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KU J N: "STRATEGIES ON THE IMMEDIATE ASSIGNMENT PROCEDURE WITHIN THE GSM CALL SETUP SCENARIO", PROCEEDINGS OF THE VEHICULAR TECHNOLOGY SOCIETY CONFERENCE (VTSC),US,NEW YORK, IEEE, vol. CONF. 42, 10 May 1992 (1992-05-10), pages 786 - 789, XP000339901, ISBN: 0-7803-0673-2 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003075586A1 (fr) * 2002-03-06 2003-09-12 Koninklijke Philips Electronics N.V. Procede de reduction de consommation de courant dans un systeme de communication radio et appareil associe

Also Published As

Publication number Publication date
EP1205087A1 (fr) 2002-05-15
DE19938895C1 (de) 2001-03-29

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