WO2001022616A2 - Procede de transmission de signaux dans un systeme de radiocommunication - Google Patents

Procede de transmission de signaux dans un systeme de radiocommunication Download PDF

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Publication number
WO2001022616A2
WO2001022616A2 PCT/DE2000/003276 DE0003276W WO0122616A2 WO 2001022616 A2 WO2001022616 A2 WO 2001022616A2 DE 0003276 W DE0003276 W DE 0003276W WO 0122616 A2 WO0122616 A2 WO 0122616A2
Authority
WO
WIPO (PCT)
Prior art keywords
signaling channel
base station
time slot
assigned
channel
Prior art date
Application number
PCT/DE2000/003276
Other languages
German (de)
English (en)
Other versions
WO2001022616A3 (fr
Inventor
Christian Mucke
Alois Laubenbacher
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
Publication of WO2001022616A2 publication Critical patent/WO2001022616A2/fr
Publication of WO2001022616A3 publication Critical patent/WO2001022616A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
    • H04B7/2653—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA] for logical channel control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/52—Allocation or scheduling criteria for wireless resources based on load
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames

Definitions

  • the radio interface is divided into eight time slots, each one
  • At least one time slot of a time frame is assigned to a signaling channel for the transmission of information from at least one service. Additional time slots of the time frame are each assigned to at least one traffic channel for the transmission of user data, depending on a current traffic load of the signaling channel additionally at least one time slot assigned to the traffic channels can be assigned to the signaling channel.
  • a respective change in the assignment of a time slot to a signaling channel or to a traffic channel is signaled from a respective base station of the radio communication system to subscriber stations within a radio cell of the base station.
  • a general organization channel can be used.
  • the change in the assignment can be specified, for example, by signaling the assignment or drawing of a time slot to the signaling channel by specifying the respective time slot, or by periodically signaling the respective current assignment structure in the time frame.
  • the method according to the invention and the base station system according to the invention of a radio communication system with a TDMA subscriber separation method are used particularly advantageously.
  • an implementation can be carried out, for example, in the TDD mode (Time Division Duplex) of the UMTS mobile radio system (Universal Mobile Telecommunication System) of the third generation.
  • the UMTS mobile radio system is based on an additional subscriber separation according to a CDMA process (Code Division Multiple Access), in which several physical transmission channels are separated by individual spreading codes within a time slot.
  • the signaling channel is not assigned, for example, an entire time slot, but rather one or more spreading codes within a time slot, the remaining physical transmission channels still being able to be used as traffic channels.
  • the GSM mobile radio system consists of a large number of mobile switching centers MSC (Mobile Switchmg Center), which enable a transition to a fixed landline network PSTN.
  • MSC Mobile Switchmg Center
  • Each mobile switching center MSC is connected to a multiplicity of base station controllers BSC (Base Station Controller), each of which carries out a central administration of radio resources for one or more base stations (Base Station).
  • BSC Base Station Controller
  • the base stations (BS) in turn enable a connection to a plurality of subscriber stations MS via a radio interface in accordance with a specific subscriber separation method.
  • a distinction is made after a transmission in the upward direction UL from the subscriber stations MS to the base station BS and the downward direction DL from the base station BS to the subscriber stations MS.
  • FIG. 3 shows a corresponding structure of the GSM radio interface with features according to the invention.
  • a signal transmission in the downward direction DL is assumed as an example, in which the radio cell Z of the base station BS is assigned two frequency channels C1, C2.
  • the first time slot tsO is provided for the general organization channel B described.
  • the second time slot tsl is reserved for the signaling channel S and the other time slots ts2 ... ts7 of the time frame tf are generally provided for traffic channels T according to the prior art.
  • the time slots ts0 ... ts7 of the second frequency channel C2 are all reserved for traffic channels T, for example, since only one general organization channel B is necessary within the radio cell Z.
  • Such a structure is rigid according to the prior art and can only be changed, for example, by reconfiguring the base station controller BSC.
  • a selection of a suitable time slot (not shown), in this case the time slot ts2 of FIG. 3, is carried out for the assignment to the signaling channel S.
  • a comparison with a minimum number of signaling channel S Assigned time slots ts occur if, for example, the time slot ts is to be assigned to a traffic channel T again due to the value falling below the threshold value sw.
  • the change in the assignment to the subscriber stations MS m of the radio cell Z is signaled by the base station BS, for example in the general organization channel B, in accordance with FIG To enable information.

Landscapes

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

Abstract

Selon l'invention, au moins une tranche de temps d'une trame dans un système de radiocommunication est affectée à une voie de signalisation pour la transmission d'informations d'au moins un service. D'autres tranches de temps de la trame sont affectées respectivement à au moins une voie de communication pour la transmission de données utiles. Si le trafic est encombré sur la voie de signalisation, au moins une tranche de temps supplémentaire, affectée aux voies de communication, peut être affectée à la voie de signalisation.
PCT/DE2000/003276 1999-09-22 2000-09-20 Procede de transmission de signaux dans un systeme de radiocommunication WO2001022616A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19945448.5 1999-09-22
DE19945448A DE19945448A1 (de) 1999-09-22 1999-09-22 Verfahren zur Signalübertragung in einem Funk-Kommunikationssystem

Publications (2)

Publication Number Publication Date
WO2001022616A2 true WO2001022616A2 (fr) 2001-03-29
WO2001022616A3 WO2001022616A3 (fr) 2001-10-11

Family

ID=7922928

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2000/003276 WO2001022616A2 (fr) 1999-09-22 2000-09-20 Procede de transmission de signaux dans un systeme de radiocommunication

Country Status (2)

Country Link
DE (1) DE19945448A1 (fr)
WO (1) WO2001022616A2 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3130176A1 (de) * 1981-07-30 1983-02-17 Siemens AG, 1000 Berlin und 8000 München Verfahren zur dynamischen zeitschlitzvergabe des organisationskanals zellularer mobilfunknetze in abhaengigkeit vom verkehrsaufkommen
GB2281470A (en) * 1993-04-02 1995-03-01 Motorola Ltd Multichannel random access communications systems
WO1999020069A1 (fr) * 1997-10-14 1999-04-22 Telefonaktiebolaget Lm Ericsson (Publ) Procedes permettant d'initier une reconfiguration d'une cellule d'un reseau radio mobile

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI114178B (fi) * 1995-01-09 2004-08-31 Nokia Corp Radiokapasiteetin dynaaminen jakaminen TDMA-järjestelmässä
DE19505243A1 (de) * 1995-02-16 1996-08-29 Deutsche Telekom Mobil Verfahren zur dynamischen Kanalzuteilung in Mobilfunknetzen
DE19638436C1 (de) * 1996-09-19 1998-03-12 Siemens Ag Verfahren zur Informationsübertragung für ein mit TDMA arbeitendes, digitales Mobilfunksystem und System zur Anwendung des Verfahrens
DE19748231A1 (de) * 1997-10-31 1999-05-06 Cit Alcatel Aufbau einer Funkverbindung zwischen einem mobilen Teilnehmerendgerät und einer Funkstation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3130176A1 (de) * 1981-07-30 1983-02-17 Siemens AG, 1000 Berlin und 8000 München Verfahren zur dynamischen zeitschlitzvergabe des organisationskanals zellularer mobilfunknetze in abhaengigkeit vom verkehrsaufkommen
GB2281470A (en) * 1993-04-02 1995-03-01 Motorola Ltd Multichannel random access communications systems
WO1999020069A1 (fr) * 1997-10-14 1999-04-22 Telefonaktiebolaget Lm Ericsson (Publ) Procedes permettant d'initier une reconfiguration d'une cellule d'un reseau radio mobile

Also Published As

Publication number Publication date
DE19945448A1 (de) 2001-04-26
WO2001022616A3 (fr) 2001-10-11

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