WO2004105271A1 - Verfahren zum betrieb eines mobilfunksystems, mobilfunksystem und basisstation - Google Patents
Verfahren zum betrieb eines mobilfunksystems, mobilfunksystem und basisstation Download PDFInfo
- Publication number
- WO2004105271A1 WO2004105271A1 PCT/EP2004/050717 EP2004050717W WO2004105271A1 WO 2004105271 A1 WO2004105271 A1 WO 2004105271A1 EP 2004050717 W EP2004050717 W EP 2004050717W WO 2004105271 A1 WO2004105271 A1 WO 2004105271A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- utilization
- measure
- power
- power amplifier
- mobile radio
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/52—TPC using AGC [Automatic Gain Control] circuits or amplifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
Definitions
- the invention relates to a method for operating a mobile radio system, a mobile radio system and a base station for a mobile radio system.
- Mobile radio systems are radio communication systems in which network-side stations maintain a radio connection with subscriber stations.
- Numerous cellular mobile radio systems are known which have a large number of radio cells supplied by at least one network-side radio station. These include, for example, systems based on the standards GSM, UMTS, IS-95, CDMA2000 and many others. These systems usually have one base station per radio cell.
- the radio cells of several radio cells are connected to a central radio network controller (Radio Network Controller, BSC or RNC).
- BSC Radio Network Controller
- the invention is based on the object of specifying a method for operating a mobile radio system which enables improved use of the radio resources present in a radio cell.
- the method according to the invention for operating a mobile radio system provides a power amplifier for amplifying signals to be transmitted to subscriber stations.
- a measure of the utilization of the power amplifier is determined and sent to a central unit of the mobile radio system.
- the power amplifier can be part of a base station of the mobile radio system, for example. If a radio cell has several transmission locations, then each of these locations has at least one power amplifier.
- the individual utilization of a particular power amplifier is determined and communicated to the central unit, which can be a radio network controller, for example.
- the maximum output power permitted for the power amplifier is the maximum permitted total transmission power of the corresponding radio cell in which the amplifier is located located.
- the maximum permissible output power of each amplifier is generally determined in such a way that the amplifier is prevented from being overloaded or operating in a non-linear region of its characteristic curve and thereby causing distortions.
- the maximum permissible transmission power of the cell is set so that the emissions from neighboring radio cells are not impaired too much.
- the focus here is on interference limitation.
- the maximum permissible transmission power of the cell is therefore determined accordingly on the network side.
- the invention can be used in any mobile radio system.
- the invention it is in particular possible, in the presence of several power amplifiers per radio cell, not only to provide a measure of the load on the entire radio cell, but also a measure of the load of each individual amplifier on the network side of the mobile radio system. If the allocation of resources is planned in the central unit, it is then possible, for example, to carry out the allocation of resources in such a way that the power amplifiers are utilized as evenly as possible.
- Transmit diversity is used only for a part of the connections, while the use of only one amplifier can be provided for other connections.
- the power amplifier is located in a radio cell of the mobile radio system and the central unit is located outside the radio cell.
- the measures transmitted to the central unit can form the basis for the allocation of connections to the individual power amplifiers, which is carried out either by the central unit or other network-side components.
- the central unit can be a radio network controller.
- the measure for the utilization of the power amplifier advantageously depends both on the output power currently provided by the power amplifier and on the maximum permissible output power of the power amplifier. For example, these two values can be related to one another, so that the dimension determined and transmitted to the central unit is correspondingly “standardized” and indicates a percentage degree of utilization.
- several power amplifiers are provided for amplifying the signals to be transmitted to the subscriber stations, and at least one measure for the utilization of the power amplifiers is determined.
- a measure of the utilization — each of the power amplifiers can be determined. This enables very detailed information of the unit responsible for resource allocation about the degree of utilization of each individual amplifier. Alternatively, it can also be determined which degree of
- Utilization of the power amplifier has the greatest value and this measure is sent with the greatest value to the central unit. This information informs the central unit of the most critical degree of utilization of one of the amplifiers (in terms of resources that are still available).
- a measure of the utilization of a radio cell in which the power amplifier is located is also determined, and the measure of the utilization of the radio cell is also sent to the central unit. This is particularly advantageous if the embodiment described in the previous paragraph is available. Then, on the network side, it can be determined on the basis of both dimensions whether only at least one of the amplifiers has reached a critical area of its utilization, or whether the radio cell is already approaching its capacity limit overall. Often (with several amplifiers per radio cell) the sum of the maximum output powers permitted for the individual power amplifier will be significantly greater than the maximum total transmission power of the corresponding radio cell in which the amplifier is located.
- the amplifiers can be used to different degrees during operation.
- the maximum permissible output power of each amplifier is usually set so that the amplifier is prevented from being overloaded.
- the maximum permissible transmission power of the cell (which is also referred to below as the maximum permissible sum of the output powers of the power amplifiers of the corresponding cell) is set in such a way that the transmissions from neighboring radio cells are not impaired too much.
- the degree of utilization of the radio cell depends both on the sum of the output powers currently available from all power amplifiers of the radio cell and on a maximum permissible sum of the output powers of the power amplifiers.
- the latter factor is the maximum permissible transmission power of the radio cell mentioned in the last paragraph.
- the standardization with the latter factor as a measure of the utilization of the radio cell results in a percentage degree of utilization of the radio cell.
- the degree of utilization of the radio cell can be simultaneously with the degree of utilization of the power amplifier or both can be transmitted to the central unit at different times.
- the latter can be done, for example, by determining whether the degree of utilization of one of the power amplifiers or the degree of utilization of the radio cell has a greater value, with either the degree of utilization of this power amplifier or the degree of utilization depending on this result the radio cell is sent to the central unit. In this way it is ensured that the central unit is always informed of the most critical degree of utilization (that of one of the amplifiers or that of the radio cell as a whole). At the same time, transmission resources to the central unit are saved, since not both measures of the load are transmitted simultaneously.
- the degree of utilization according to the invention can advantageously be determined repeatedly and transmitted to the central unit.
- the central unit can determine and transmit the data periodically or on request.
- the mobile radio system according to the invention and the base station according to the invention have the means or components which are necessary for carrying out the method according to the invention and its training and further developments. Embodiments of the invention are also possible in which these means are not or only partially part of a base station.
- FIG. 1 shows a radio cell C of a UMTS mobile radio system which is supplied by a base station BS.
- the base station is formed by a local unit BS 'and by two remote antenna units AI, A2 connected to it.
- the base station BS can maintain connections to subscriber stations MSI, MS2 via which the corresponding signals S1, S2 can be transmitted.
- First signals S1 are transmitted to the first subscriber station MSI by means of the first antenna unit AI and at the same time by means of the second antenna unit A2 using a transmission diversity method.
- Connections can also only be maintained via one of the antenna units.
- second Signals S2 are only transmitted via the first antenna unit AI to the second subscriber station MS2.
- Each antenna unit AI, A2 has a power amplifier PA1, PA2, which serves to amplify the signals S1, S2 to be transmitted via the respective antenna. Furthermore, the local unit BS 'of the base station BS is connected to a central unit in the form of a radio network controller RNC, which is connected to several similar base stations of other radio lines (not shown).
- RNC radio network controller
- the base station BS determines the following measure Mn for each amplifier PA1, PA2 for its utilization at the radio network controller RNC:
- Pn is the current output or transmission power of the amplifier PAn and Pnmax is its maximum permissible output power.
- the base station BS also determines the one of these two dimensions M1, M2 which has the greatest value:
- both dimensions M1, M2 can of course also be communicated to the radio network controller.
- a measure for the utilization of the radio cell C is determined in the base station BS and also communicated to the radio network controller:
- PCmax is the maximum transmission power permitted in the radio cell, which was previously determined by the radio network controller RNC.
- the radio network controller is able to recognize whether the operation of radio cell C is potentially endangered by exceeding the maximum permissible power of the cell (PCmax) or the maximum permissible power of one of the amplifiers (Pnmax).
- the dimensions of the utilization Mn, MC are determined periodically and transmitted to the controller RNC.
- the radio network controller RNC is therefore able to distribute the radio resources of radio cell C as optimally as possible, so that exceeding the maximum permissible output power Pnmax per power amplifier PAn as well as the maximum permissible transmission power PCmax of radio cell C is avoided.
- the resource distribution can take place in that the power amplifiers are assigned a certain number of connections with the corresponding signals S1, S2 to be transmitted. If, for example, excessive utilization of the first power amplifier PA1 turns out, the controller RNC can determine that the signals S1 of the connection to the first subscriber station MSI are no longer transmitted in diversity mode, but only via the second amplifier PA2. In this way, the first amplifier PAl is relieved.
- both dimensions MPA, MC are not transmitted to the radio network controller RNC at the same time. Instead, a further parameter is calculated from these dimensions using the following formula and transmitted to the radio network controller:
- TCP max (MC; MA).
- the amplifiers PA1, PA2 can be arranged in the local unit BS 'of the base station BS, that is to say separately from the antennas.
- more than two antennas, each with a power amplifier, can also be provided within the base station BS.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Transmitters (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/557,612 US20070004441A1 (en) | 2003-05-22 | 2004-05-05 | Method for operating a mobile radio telephone system, mobile radio telephone system and base station |
EP04731188A EP1625672A1 (de) | 2003-05-22 | 2004-05-05 | Verfahren zum betrieb eines mobilfunksystems, mobilfunksystem und basisstation |
MXPA05012532A MXPA05012532A (es) | 2003-05-22 | 2004-05-05 | Procedimiento para operar un sistema de radio movil, sistema de radio movil y estacion base. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10323191.9 | 2003-05-22 | ||
DE10323191A DE10323191B4 (de) | 2003-05-22 | 2003-05-22 | Verfahren zum Betrieb eines Mobilfunksystems, Mobilfunksystem und Basisstation |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004105271A1 true WO2004105271A1 (de) | 2004-12-02 |
Family
ID=33461841
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/050717 WO2004105271A1 (de) | 2003-05-22 | 2004-05-05 | Verfahren zum betrieb eines mobilfunksystems, mobilfunksystem und basisstation |
Country Status (8)
Country | Link |
---|---|
US (1) | US20070004441A1 (de) |
EP (1) | EP1625672A1 (de) |
KR (1) | KR20060003122A (de) |
CN (1) | CN1795621A (de) |
DE (1) | DE10323191B4 (de) |
MX (1) | MXPA05012532A (de) |
RU (1) | RU2005140087A (de) |
WO (1) | WO2004105271A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MY151625A (en) | 2002-11-26 | 2014-06-30 | Interdigital Tech Corp | Outer loop power control for wireless communication systems |
US11974232B2 (en) * | 2021-12-07 | 2024-04-30 | Qualcomm Incorporated | Coordination of transmit power for distributed units |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1054518A1 (de) * | 1999-05-21 | 2000-11-22 | Alcatel | Verfahren zur Verbesserung der Funktion eines mobilen Funkkommunikationssystems mittels Leistungssteuerung |
US20020012380A1 (en) * | 1998-12-15 | 2002-01-31 | Ari Hottinen | Method and radio system for digital signal transmission |
WO2002023936A1 (en) * | 2000-09-18 | 2002-03-21 | Telefonaktiebolaget L M Ericsson (Publ) | Increased radio communication capacity using transmit power balancing |
US20020094833A1 (en) * | 2001-01-12 | 2002-07-18 | Telefonaktiebolaget Lm Ericsson (Publ). | Downlink power control of a common transport channel |
EP1237296A2 (de) * | 2001-02-28 | 2002-09-04 | Nec Corporation | Drahtlosen Übertragungssystem, zugehöriges Verfahren zur Sendeleistungsregelung und zugehöriges Basisstation |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2734448B2 (ja) * | 1996-07-31 | 1998-03-30 | 日本電気株式会社 | 基地局送信電力制御方式 |
US6542482B1 (en) * | 1998-10-05 | 2003-04-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Load sharing for MCPA-equipped base station |
US6317435B1 (en) * | 1999-03-08 | 2001-11-13 | Qualcomm Incorporated | Method and apparatus for maximizing the use of available capacity in a communication system |
US6493541B1 (en) * | 1999-07-02 | 2002-12-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Transmit power control time delay compensation in a wireless communications system |
DE19931236C2 (de) * | 1999-07-07 | 2002-05-29 | Siemens Ag | Verfahren zur Zuweisung von Übertragungskapazität zu Verbindungen in einem Funk-Kommunikationssystem |
US6393276B1 (en) * | 2000-01-12 | 2002-05-21 | Telefonaktiebolaget Lm Ericsson | Mobile station assisted forward link open loop power and rate control in a CDMA system |
SE516517C2 (sv) * | 2000-02-08 | 2002-01-22 | Ericsson Telefon Ab L M | Hantering av fel som uppstår i en basstation i ett CDMA- system |
FI20000851A (fi) * | 2000-04-10 | 2001-10-11 | Nokia Networks Oy | Tiedonsiirtomenetelmä ja radiojärjestelmä |
US6748222B1 (en) * | 2000-11-06 | 2004-06-08 | Nortel Networks Limited | Method and system for providing load-balanced communication |
-
2003
- 2003-05-22 DE DE10323191A patent/DE10323191B4/de not_active Expired - Fee Related
-
2004
- 2004-05-05 US US10/557,612 patent/US20070004441A1/en not_active Abandoned
- 2004-05-05 MX MXPA05012532A patent/MXPA05012532A/es not_active Application Discontinuation
- 2004-05-05 KR KR1020057022287A patent/KR20060003122A/ko not_active Application Discontinuation
- 2004-05-05 WO PCT/EP2004/050717 patent/WO2004105271A1/de not_active Application Discontinuation
- 2004-05-05 EP EP04731188A patent/EP1625672A1/de not_active Withdrawn
- 2004-05-05 CN CNA2004800140622A patent/CN1795621A/zh active Pending
- 2004-05-05 RU RU2005140087/09A patent/RU2005140087A/ru not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020012380A1 (en) * | 1998-12-15 | 2002-01-31 | Ari Hottinen | Method and radio system for digital signal transmission |
EP1054518A1 (de) * | 1999-05-21 | 2000-11-22 | Alcatel | Verfahren zur Verbesserung der Funktion eines mobilen Funkkommunikationssystems mittels Leistungssteuerung |
WO2002023936A1 (en) * | 2000-09-18 | 2002-03-21 | Telefonaktiebolaget L M Ericsson (Publ) | Increased radio communication capacity using transmit power balancing |
US20020094833A1 (en) * | 2001-01-12 | 2002-07-18 | Telefonaktiebolaget Lm Ericsson (Publ). | Downlink power control of a common transport channel |
EP1237296A2 (de) * | 2001-02-28 | 2002-09-04 | Nec Corporation | Drahtlosen Übertragungssystem, zugehöriges Verfahren zur Sendeleistungsregelung und zugehöriges Basisstation |
Also Published As
Publication number | Publication date |
---|---|
DE10323191A1 (de) | 2004-12-23 |
MXPA05012532A (es) | 2006-05-25 |
US20070004441A1 (en) | 2007-01-04 |
DE10323191B4 (de) | 2005-04-07 |
EP1625672A1 (de) | 2006-02-15 |
KR20060003122A (ko) | 2006-01-09 |
CN1795621A (zh) | 2006-06-28 |
RU2005140087A (ru) | 2006-07-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69401672T2 (de) | Mobilfunksystem mit Verkehrsverteilungssteuerung durch Änderung der Zellengrösse | |
DE69913232T2 (de) | Verfahren und System zur Sendeleistungsregelung während Makrodiversität | |
DE69813531T2 (de) | Globalkanal-leistungsregelung zur minimierung des überlaufs in einer schnurlosen kommunikationsumgebung | |
DE69108793T2 (de) | Verfahren zur Regelung der Leistung in einem digitalen Mobilfunkkomunikationssystem. | |
DE69916430T2 (de) | Verfahren und system zur steuerung einer makrodiversitätsverbindung durch mindestens zwei funkübertragungsnetzwerke | |
DE69735320T2 (de) | Sendeleistungssteuerung für die Abwärtsrichtung eines Mobilkommunikationssystems mit Site-Diversität | |
DE60301533T2 (de) | Verringerung der Interferenz in einem CDMA-Kommunikationssystem durch Anpassungdes Leistungspegels der Pilotsignale der Basissation | |
DE60035222T2 (de) | Sendeleistungsregelung einer mobilstation | |
DE69112974T2 (de) | Verfahren zur Regelung der Ausgangsleistung in einem Mobilfunkkommunikationssystem. | |
DE602004007853T2 (de) | Regelung der Sendeleistung vom Vorwärts-Zugriffskanal (FACH), und entsprechendes Netzwerk für Mobiltelekommunikation | |
DE60132848T2 (de) | Verfahren zur Sendeleistungssteuerung in einem Mobilfunkkommunikationssystem | |
DE10010958A1 (de) | Verfahren zur Intersystem-Verbindungsweiterschaltung | |
DE69914876T2 (de) | Methode zur Verbesserung der Eigenschaften eines mobilen Funkkommunikationssystems unter Verwendung eines Leistungsregelungsalgorithmus | |
DE10017930A1 (de) | Verfahren zur Sendeleistungsregelung in einem Funk-SIGMAommunikationssystem | |
DE60203668T2 (de) | System und Verfahren für Funkstrahlbündel nach Bedarf | |
DE60318210T2 (de) | Verfahren und system zur vermeidung von stromausfällen in einer basisstation eines zellularen systems mit einer variablen übertragungsrate | |
DE69934996T2 (de) | Erhöhte verkehrskapazität für paketvermittelte zellen | |
DE69214591T2 (de) | Verfahren zur Vermeidung eines unnötig-hohen Energieverbrauchs in Mobilstationen | |
EP1543700A1 (de) | Verfahren zum betrieben eines mobilfunksystems, mobilfunksystem, mobilstation sowie einrichtung zum bestimmen einer teilgruppe von benachbarten funkzellen eines mobilfunksystems | |
DE60102770T2 (de) | Verfahren zur Anfangssendeleistungsbestimmung | |
EP1559202A1 (de) | Verfahren zum Sendeleistungsabgleich bei einem Mobilen Kommunikationsendgerät und Kommunikationsendgerät zur Durchführung des Verfahrens | |
DE10323191B4 (de) | Verfahren zum Betrieb eines Mobilfunksystems, Mobilfunksystem und Basisstation | |
EP1320271B1 (de) | Basisstation für UMTS zur Übertragung von Zeitschlitztypen | |
DE10339898B4 (de) | Verfahren zum Betrieb einer Basisstation eines Mobilfunksystems, Signalisierungseinheit, Steuereinheit, Mobilstation und Computerprogramm | |
EP1543696B1 (de) | Anpassen der kommunikation zwischen einer mobilstation und einer ersten basisstation auf basis einer schätzung der an einer zweiten basisstation durch das signal der mobilstation auftretenden störung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2004731188 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: PA/a/2005/012532 Country of ref document: MX |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2007004441 Country of ref document: US Ref document number: 10557612 Country of ref document: US Ref document number: 20048140622 Country of ref document: CN Ref document number: 1020057022287 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2005140087 Country of ref document: RU |
|
WWP | Wipo information: published in national office |
Ref document number: 1020057022287 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 2004731188 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 10557612 Country of ref document: US |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2004731188 Country of ref document: EP |