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WO2002065666A1 - Procede et systeme de commande de capacite de canaux partages - Google Patents

Procede et systeme de commande de capacite de canaux partages Download PDF

Info

Publication number
WO2002065666A1
WO2002065666A1 PCT/SE2002/000229 SE0200229W WO02065666A1 WO 2002065666 A1 WO2002065666 A1 WO 2002065666A1 SE 0200229 W SE0200229 W SE 0200229W WO 02065666 A1 WO02065666 A1 WO 02065666A1
Authority
WO
WIPO (PCT)
Prior art keywords
shared channel
throughput
transmission power
action
spreading factor
Prior art date
Application number
PCT/SE2002/000229
Other languages
English (en)
Inventor
Andreas Andersson
Patrik Karlsson
Original Assignee
Telefonaktiebolaget L M Ericsson (Publ)
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 Telefonaktiebolaget L M Ericsson (Publ) filed Critical Telefonaktiebolaget L M Ericsson (Publ)
Publication of WO2002065666A1 publication Critical patent/WO2002065666A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/343—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading taking into account loading or congestion level
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H04J13/0044—OVSF [orthogonal variable spreading factor]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H04J13/18—Allocation of orthogonal codes
    • H04J13/20—Allocation of orthogonal codes having an orthogonal variable spreading factor [OVSF]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems

Definitions

  • the present invention relates to cellular mobile radio systems, and more especially to common or shared channel throughput in such a system, particularly in a Universal Mobile Telecommunications System, UMTS.
  • UMTS Universal Mobile Telecommunications System
  • EP0886389 discusses the interrelationship between transmission power, spreading factor and data rate.
  • European patent application EP0876008 discusses the interrelationship between spreading factor and data rate. None of the cited documents reveal a method and system of throughput control, estimating shared channel throughput and dynamically adjusting transmission power or spreading factor and related throughput of the shared channel.
  • an object of this invention is to dynamically allow for throughput preserving measures of a shared chan- nel.
  • Figure 5 shows a network element, according to the invention, for practicing the method of figures 2 and 3.
  • Data traffic tends to occur in bursts.
  • the traffic time-variation in a cell can be substantial. Consequently, it is difficult to foresee the required capacity for data traffic of a particular cell when the system is set up. Also, the demand of an in- dividual user as regards throughput and delay will vary over time.
  • This invention simplifies and reduces the system resources allotted for channel allocation and yields a stable air-in- terface load control.
  • a single shared traffic channel is used for data traffic in downlink.
  • the shared channel is of a predetermined size, in terms of capacity, and channel structure. Data is queued until it is transmitted. Queuing time will depend on traffic load and throughput at a given shared channel capacity.
  • capacity of the shared channel is not determined adaptively over time on basis of amount of data traffic in a cell.
  • Spreading factor four represents a medium user data rate.
  • a user allocated a channel of spreading factor 16 occupies the lowest data rate in this exemplary figure.

Landscapes

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

Abstract

L'invention concerne un procédé et un système de commande de capacité dynamique servant à attribuer des ressources de transmission en fonction de la capacité de canal partagé dans des systèmes radio mobiles cellulaires.
PCT/SE2002/000229 2001-02-12 2002-02-08 Procede et systeme de commande de capacite de canaux partages WO2002065666A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0100476-1 2001-02-12
SE0100476A SE0100476D0 (sv) 2001-02-12 2001-02-12 Method and system of throughput control

Publications (1)

Publication Number Publication Date
WO2002065666A1 true WO2002065666A1 (fr) 2002-08-22

Family

ID=20282966

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2002/000229 WO2002065666A1 (fr) 2001-02-12 2002-02-08 Procede et systeme de commande de capacite de canaux partages

Country Status (2)

Country Link
SE (1) SE0100476D0 (fr)
WO (1) WO2002065666A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004043103A1 (fr) * 2002-11-08 2004-05-21 Nokia Corporation Procede de transmission de donnees, controleur de reseau radio et station de base
EP1458213A1 (fr) * 2003-03-12 2004-09-15 Bouygues Telecom Procédé d'allocation de ressources à un mobile
WO2006005223A1 (fr) * 2004-07-12 2006-01-19 Zte Corporation Methode d'ajustement dynamique du facteur d'etalement dans le systeme w-amdc

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5859838A (en) * 1996-07-30 1999-01-12 Qualcomm Incorporated Load monitoring and management in a CDMA wireless communication system
WO2000054438A1 (fr) * 1999-03-08 2000-09-14 Qualcomm Incorporated Attribution de debits dans un reseau de communications
WO2000055976A2 (fr) * 1999-03-15 2000-09-21 Telefonaktiebolaget Lm Ericsson (Publ) Regulation de puissance adaptative dans un systeme de radiocommunication
WO2001031948A1 (fr) * 1999-10-29 2001-05-03 Telefonaktiebolaget L M Ericsson (Publ) Commutation d'un type de canal sur un canal commun en fonction de la charge du canal commun

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5859838A (en) * 1996-07-30 1999-01-12 Qualcomm Incorporated Load monitoring and management in a CDMA wireless communication system
WO2000054438A1 (fr) * 1999-03-08 2000-09-14 Qualcomm Incorporated Attribution de debits dans un reseau de communications
WO2000055976A2 (fr) * 1999-03-15 2000-09-21 Telefonaktiebolaget Lm Ericsson (Publ) Regulation de puissance adaptative dans un systeme de radiocommunication
WO2001031948A1 (fr) * 1999-10-29 2001-05-03 Telefonaktiebolaget L M Ericsson (Publ) Commutation d'un type de canal sur un canal commun en fonction de la charge du canal commun

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004043103A1 (fr) * 2002-11-08 2004-05-21 Nokia Corporation Procede de transmission de donnees, controleur de reseau radio et station de base
EP1458213A1 (fr) * 2003-03-12 2004-09-15 Bouygues Telecom Procédé d'allocation de ressources à un mobile
FR2852477A1 (fr) * 2003-03-12 2004-09-17 Bouygues Telecom Sa Procede d'allocation de ressources a un mobile
WO2006005223A1 (fr) * 2004-07-12 2006-01-19 Zte Corporation Methode d'ajustement dynamique du facteur d'etalement dans le systeme w-amdc

Also Published As

Publication number Publication date
SE0100476D0 (sv) 2001-02-12

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