EP0990332A1 - Procede de transmission de donnees sur un support commun - Google Patents

Procede de transmission de donnees sur un support commun

Info

Publication number
EP0990332A1
EP0990332A1 EP98932036A EP98932036A EP0990332A1 EP 0990332 A1 EP0990332 A1 EP 0990332A1 EP 98932036 A EP98932036 A EP 98932036A EP 98932036 A EP98932036 A EP 98932036A EP 0990332 A1 EP0990332 A1 EP 0990332A1
Authority
EP
European Patent Office
Prior art keywords
data
downlink
signaling
uplink
phase
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.)
Withdrawn
Application number
EP98932036A
Other languages
German (de)
English (en)
Inventor
Markus Radimirsch
Martin Bornemann
Günter Seidel
Jens Bretschneider
Andreas KRÄMLING
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0990332A1 publication Critical patent/EP0990332A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/403—Bus networks with centralised control, e.g. polling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H04L2012/5603—Access techniques
    • H04L2012/5604—Medium of transmission, e.g. fibre, cable, radio
    • H04L2012/5607—Radio
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the invention relates to a method for data transmission on a common medium between a control center or a plurality of participants, which is controlled by sending data packets from the control center to the participants (downlink) and from the participants to the control center (uplink), with more variable signaling periods Length in addition to useful signal data phases downlink and uplink signaling data phases are provided, with whose signaling data the data transmission in the uplink and downlink by transmission of transmission requests and allocation of transmission time and, if necessary. Further information is organized and signaling data for subsequent data phases are contained in a downlink signaling data phase, which begin only after an intermediate data phase, the intermediate data phase having been organized with an earlier downlink signaling data phase.
  • Such a method is known, for example, from the conference contribution by D. Petras in the IEEE ireless Communications Systems Symposium, pages 79 to 84 (1995).
  • the data packets transmitted in asynchronous transfer mode (ATM) are sent with a protocol that dynamically defines time slots for data transmission (Dynamic Slot Assignment (DSA)).
  • DSA Dynamic Slot Assignment
  • the transmission in a downlink signaling period is organized by a previous downlink signaling burst, where the signaling period is concluded with a useful signal phase that has been organized by a previous downlink signaling burst.
  • the known protocols which are suitable for controlling the data transmission by a control center, provide that the signaling data phases are sent out in fixed time positions within a signaling period.
  • the known methods are designed to achieve high processing dynamics, the problem underlying the present invention is to increase the processing dynamics in a method of the type mentioned at the outset and to ensure greater flexibility.
  • a method of the type mentioned at the outset is characterized in that the signaling data phases are flexibly positioned within a signaling period and defined by at least one previous downlink signaling data phase and that a useful signal data phase is inserted between an uplink signaling data phase and a downlink signaling data phase becomes.
  • the method according to the invention permits greater flexibility and dynamics for different operating states of the communication.
  • the invention provides that a useful signal data phase is inserted between an uplink signaling data phase and a downlink signaling data phase.
  • the method according to the invention can be used in the next downlink signaling data phase can already be reacted to the uplink signaling data phase.
  • the inserted useful signal data phase is as short as possible for high dynamics, for the processing of the uplink signaling data for the creation of the
  • Downlink signaling data is however formed as long as necessary.
  • the length of the data transmission in the uplink or downlink during the useful signal data phases can preferably be determined as required using the downlink signaling data phases. For example, it is possible to adapt to strongly asymmetrical communication phases in which, for a certain time, transmission is practically only in the uplink or practically only in the downlink.
  • a signaling period has an uplink signaling data phase and more than one downlink signaling data phase.
  • a timely organization of large amounts of useful signal transmission can take place, the need for uplink signaling being relatively low.
  • An example of this is a distribution service via which "Video on Demand" is sent individually to the participants.
  • the signaling data can be sent out in separate time slots, but can also be transmitted together with the user data (using the "piggyback method").
  • the method according to the invention is preferably used for the transmission of ATM data signals in radio communication.
  • PON passive optical networks
  • Figure 1 is a schematic representation of a communication network in which the data transmission according to the invention can take place
  • Figure 2 is a schematic representation of signaling periods in conventional data transmission methods in time division duplex operation
  • Figure 3 shows a first embodiment of a data transmission according to the invention
  • Figure 4 is a schematic representation of a second embodiment for a data transmission according to the invention.
  • FIG. 5 shows an example of the division into
  • FIG. 6 shows a schematic illustration of another division between uplink and downlink transmission in the exemplary embodiment according to FIG. 4
  • FIG. 7 shows a further variation of the uplink and downlink transmission in the exemplary embodiment according to FIG. 4
  • FIG. 8 shows a third exemplary embodiment of a data transmission according to the invention
  • FIG. 9 shows a schematic illustration for an exemplary division into uplink and residential link transmission for the exemplary embodiment according to FIG. 8
  • FIG. 1 schematically shows a broadband network in which ATM cells can be transmitted as data signals.
  • the transmission network consists of three network nodes 134, which are connected via network lines 136.
  • a network node 134 is connected to a connection 137 of a stationary unit 133 via a network connection line 135.
  • the stationary unit 133 will carry out the transmission and reception traffic with the mobile units 130, 131, 132 and thus act as a center.
  • the signals (downlink) transmitted from the stationary unit 133 to the subscribers 130, 131, 132 can also originate from the network nodes 134.
  • the transmission protocol provides that, for example, a data transmitter and data receiver are identified in the header of a signal packet (ATM cell).
  • the use of the method according to the invention is not limited to the fact that a stationary unit 133 serves as a control center. It is also possible to select one of the mobile subscribers 130, 131, 132 and to carry out the control functions to be carried out by the central station by the selected subscriber, it being possible for transmission of useful signal data to take place directly between subscribers.
  • FIG. 2 shows a conventional data transmission method in which signaling periods 1 follow one another.
  • the signaling periods each consist of a downlink period 9 and an uplink period 10.
  • a downlink signal data phase is first sent out, the announcement signals 6 for subsequent useful data time slots 3 in the downlink period 9 includes. Furthermore, an allocation 7 of useful data time slots 4 and signaling data slots 5 is carried out to participants 130, 131, 32 for uplink operation 10. Acknowledgments 8 for signals received in the previous uplink period 10 from useful data time slots 4 and signaling data time slots 5 are also sent out .
  • the conventional rigid scheme is abandoned and, for example, downlink signaling data phases 30 and 31 are transmitted in distributed form in the downlink period 9, which phases can be transmitted at different positions within the downlink period 9. This positioning is freely selectable.
  • the allocations for the uplink useful data time slots 4 and uplink signaling data time slots 5 are sent out in the first downlink signaling data phase 30.
  • the announcements 6 for the next downlink period 9 and the receipts 8 for the previous uplink period 10 are created with the second downlink signaling data phase 31.
  • FIGS. 4 to 7 show data phases 40 to 46, on the basis of which the flexible division of a signaling period 1 is explained.
  • a signaling data phase 40 in the downlink is followed by a useful signal data phase 41, which, however, is not yet controlled by the signaling data phase 40, but is determined by a previous downlink signaling data phase.
  • a useful signal data phase 41 begins the signaling period 1 with a useful signal data phase 42, which is followed by an uplink signaling data phase 43, a further useful signal data phase 44, before a new downlink signaling data phase 45 follows, which corresponds functionally to the downlink signaling data phase 40.
  • the useful signal data phase 46 concluding the signaling period 1 corresponds functionally to the described useful signal data phase 41.
  • the downlink signaling data phase 40 allocations 7 of transmission time / transmission type are sent to the mobile subscribers 130, 131, 132, receipts for the data received in the previous uplink 10 and other management information.
  • the position and the length of the data phases 42 to 46 are thus determined.
  • the mobile subscribers 130, 131, 132 send management data to the central office 133. These include, for example Capacity requirements for the uplink, log-in, communication and transmission requests, etc.
  • the subsequent useful signal data phase 44 essentially serves to bridge the processing time for the uplink signaling data in the control center 133, so that all uplink signaling data contained in the Uplink signaling data phase 43 have been sent out, can also be taken into account for the subsequent downlink signaling data phase 45.
  • FIG. 5 shows an example that the occupancy of the useful signal data phases 41, 42, 44 and 46 is possible both for the uplink operation 10 and for the downlink operation 9 and that a division within the useful signal data phases 41, 42, 44, 46 can take place.
  • a downlink phase 9 lasts from the beginning of the downlink signaling data phase 40 over the entire useful signal data phase 41 to the beginning of the useful signal data phase 42.
  • the subsequent uplink period 10 extends over the rest of the useful signal data phase 42, the uplink signaling data phase 43 and part of the useful signal data phase 44.
  • the rest of the useful signal data phase 44 and the data phases 45, 46 are again occupied for the downlink operation.
  • FIG. 6 shows a completely different division of the same signal data phases 40 to 46, in which the downlink operation 9 is limited exclusively to the downlink signaling data phases 40, 45, while all the useful signal data phases 41, 42, 44, 46 and of course the uplink signaling data phase 43 for the uplink operation 10 can be used.
  • FIG. 7 shows that the reverse extreme example, in which only the uplink signaling data phase 43 in the uplink mode 10 and the other data phases 40 to 42 and 44 to 46 in the downlink mode 9 are operated.
  • FIG. 8 shows an exemplary embodiment for a division of the signaling period, which is similar to the exemplary embodiment according to FIG. 3.
  • a downlink signaling data phase 50 is again shown, followed by a useful signal data phase 51, which is derived from an earlier downlink signaling phase. data phase is determined.
  • the signaling period 1 then follows, which is partially controlled by the downlink signaling data phase 50 and begins with a useful signal data phase 52.
  • the first downlink signaling data phase 50 only determines the signal data phase 52, 53 and 54.
  • a useful signal data phase 56 is switched on, which processes the uplink signaling data from the uplink signaling data phase 55 for enables the creation of the downlink signaling data in the downlink signaling data phase 57.
  • the downlink signaling data phase 57 corresponds functionally to the first downlink signaling data phase 50 and the final useful signal data phase 58 corresponds to the previously described useful signal data phase 51.
  • FIG. 9 again shows that the division of the signal data phases 50 to 58 into downlink mode 9 and uplink mode 10 with respect to the useful signal data phases 51, 52, 54, 56, 58 is arbitrary and can also be changed during a useful signal data phase 54, 56. It only has to be ensured that a downlink operation 9 is actually set for the downlink signaling data phases 50, 53, 57 and that an uplink operation 10 applies to the uplink signaling data phase 55.
  • FIG. 9 shows that the signaling period 1 is essentially composed of two signaling periods 1 according to FIG. 7, an uplink signaling data phase being eliminated and two useful signal data phases having been combined.
  • This summary, reducing the uplink signaling data phase is used to adapt to asymmetrical control traffic, as is appropriate, for example, in the case of distribution services for video on demand. is.
  • the method according to the invention is particularly suitable for a time-division duplex method in which "sending" and “receiving” take place in a nested manner at time-determined phases.
  • the illustrated exemplary embodiments show that the signaling period 1, which can have a variable length, is no longer strictly defined.
  • a signaling period 1 always contains downlink signaling and uplink signaling, wherein an uplink signaling phase can belong to several downlink signaling phases and vice versa. It is thus clear that the division of the useful signal phases 41, 42 and 51, 52 made in FIGS. 7, 8, 9 can be modified so that, for example, the useful signal data phases 42, 52 can also become very short or be omitted.

Landscapes

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

Abstract

L'invention concerne un procédé de transmission de données sur un support commun entre un central (133) et une pluralité d'abonnés (130, 131, 132), la transmission étant commandée par l'envoi de paquets de données du central (133) vers les abonnés (130, 131, 132) (liaison descendante) et des abonnés (130, 131, 132) vers le central (133) (liaison montante). Dans des périodes de signalisation (1) de longueur variable, il est prévu, outre des phases de données de signaux utiles (3, 4; 41, 42, 44, 46; 51, 52, 54, 56, 58), des phases de données de signalisation descendantes et montantes (2, 5; 30, 31; 40, 43, 45; 50, 53, 55, 57), dont les données de signalisation sont utilisées pour organiser le transfert de données dans la liaison montante (10) et dans la liaison descendante (9) par transfert de souhaits d'émission et affectation de temps d'émission et éventuellement d'autres informations. Une phase de données de signalisation descendante (9) contient des donnés de signalisation pour les phases de données suivantes (42 à 46; 52 à 58) qui commencent seulement après une phase de données intermédiaire (41; 51). La phase de données intermédiaire est organisée avec une phase de données de signalisation descendante précédente. L'invention vise à améliorer la flexibilité et la dynamique de ce procédé de transmission. A cet effet, les phases de données de signalisation (30, 31, 5; 40, 43, 45, 50, 53, 57) sont positionnées de façon flexible à l'intérieur d'une période de signalisation (1) et sont fixées par au moins une phase de données de signalisation descendante précédente. De plus, une phase de données de signaux utiles (44, 56) est intercalée entre une phase de données de signalisation montante (43, 55) et une phase de données de signalisation descendante (45, 57).
EP98932036A 1997-06-20 1998-04-30 Procede de transmission de donnees sur un support commun Withdrawn EP0990332A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19726120 1997-06-20
DE19726120A DE19726120A1 (de) 1997-06-20 1997-06-20 Verfahren zur Datenübertragung auf einem gemeinsamen Medium
PCT/DE1998/001195 WO1998059465A1 (fr) 1997-06-20 1998-04-30 Procede de transmission de donnees sur un support commun

Publications (1)

Publication Number Publication Date
EP0990332A1 true EP0990332A1 (fr) 2000-04-05

Family

ID=7833065

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98932036A Withdrawn EP0990332A1 (fr) 1997-06-20 1998-04-30 Procede de transmission de donnees sur un support commun

Country Status (5)

Country Link
EP (1) EP0990332A1 (fr)
JP (1) JP2002505817A (fr)
KR (1) KR20010012697A (fr)
DE (1) DE19726120A1 (fr)
WO (1) WO1998059465A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19846730A1 (de) 1998-10-12 2000-04-13 Bosch Gmbh Robert Funkeinrichtung mit einer Rahmenstruktur
DE19847777A1 (de) 1998-10-16 2000-04-20 Bosch Gmbh Robert Einrichtung zur Datenübertragung
DE59912837D1 (de) 1998-11-13 2005-12-29 Bosch Gmbh Robert Verfahren für einen stromsparenden betrieb von kommunikationsendgeräten in einem insbesondere drahtlosen kommunikationssystem
DE19856043A1 (de) 1998-12-04 2000-07-06 Bosch Gmbh Robert Einrichtung zur Datenübertragung
DE19912547A1 (de) 1999-03-19 2000-09-28 Bosch Gmbh Robert Verfahren, Zentrale und Endgerät zur Übertragung von Mitteilungen an Endgeräte in einem Telekommunikatiossystem
AU4139300A (en) * 1999-04-07 2000-10-23 Telefonaktiebolaget Lm Ericsson (Publ) Ordering of long transport channels and short transport channels
DE19927544A1 (de) * 1999-06-16 2000-12-21 Bosch Gmbh Robert Verfahren zur Steuerung des Datenflusses von Terminals in zentralgesteuerten Kommunikationssystemen
DE19929385A1 (de) 1999-06-28 2001-01-04 Bosch Gmbh Robert Verfahren zur Vergabe von Übertragungsressourcen in einem zentralgesteuerten Kommunikationssystem
US6631269B1 (en) 2002-05-23 2003-10-07 Interdigital Technology Corporation Signaling connection admission control in a wireless network

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2010866C (fr) * 1989-02-28 1995-02-07 Shigeo Amemiya Systeme de communication par appel
ES2164063T3 (es) * 1993-09-17 2002-02-16 Cit Alcatel Protocolo de comunicacion para un sistema de comunicacion movil.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9859465A1 *

Also Published As

Publication number Publication date
KR20010012697A (ko) 2001-02-26
DE19726120A1 (de) 1998-12-24
JP2002505817A (ja) 2002-02-19
WO1998059465A1 (fr) 1998-12-30

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