WO2002060208A1

WO2002060208A1 - Method for the transfer of radio-based data connections with quality characteristics between radio base stations

Info

Publication number: WO2002060208A1
Application number: PCT/EP2002/000729
Authority: WO
Inventors: Hans-Jochen Morper
Original assignee: Siemens Aktiengesellschaft
Priority date: 2001-01-25
Filing date: 2002-01-24
Publication date: 2002-08-01

Abstract

The invention relates to a method for the management of radio-based data connections with individual quality requirements (QoS) between radio-based network devices (RBS, RNT; RBS1, RBS2, RNT1, RNT2, RNT3), taking into account the corresponding quality requirements. The method is used in a data transmission system, comprising at least one radio-based network access device (RBS; RBS1, RBS2) and at least one radio-based user device (RNT; RNT1, RNT2, RNT3), communicating with each other by means of a radio interface (V), whereby said radio interface (V) represents a shared medium, in which each of a number of data terminals (H, W-H), connected to a user terminal device (RNT), can receive each data packet transmitted by means of said radio interface (V), from the at least one radio-based network access device (RBS). According to the invention, an improved management of the resources can be achieved, in particular for a connection transfer (handover), whereby resource requirements and/or resource usage and/or the free resources for the total data stream are determined by one or more parameters, through the radio interface (V), between at least one user terminal device (RNT; RNT1, RNT2, RNT3) and the network access device (RBS; RBS1, RBS2), communicating therewith.

Description

description

Method for transferring radio-based data connections with quality features between radio base stations 5

The invention relates to a method for managing radio-based data connections with quality features according to the preamble features of patent claim 1 and to a data transmission system for carrying out a method.

In line-bound communication systems, communication takes place between subscriber stations wired to one another, with switching centers generally being interposed between them.

In radio communication systems, for example the mobile radio system GSM (Global System for Mobile Communications), information such as voice, image information

20 or other data with the help of electromagnetic waves transmitted over a radio interface. The radio interface serves as a connection between a base station and a multiplicity of subscriber stations, the subscriber stations, for example, mobile stations or fixed radio

25 stations can be. The electromagnetic waves are emitted at carrier frequencies that lie in a frequency band provided for the respective system. For future radio communication systems, for example the UMTS (Universal Mobile Telecommunication System) or others

30 3rd generation systems have frequencies in the frequency band of approx. 2000 MHz. Two modes are provided for the third generation of mobile radio UMTS, one mode being based on FDD operation (Frequency Division Duplex) and the other mode on TDD operation (Time Division Duplex). These modes

35 are used in different frequency bands, with both modes being a code-shared so-called CDMA subscriber Support mer separation procedures (Code Division Multiple Access).

In the case of data access, especially in line-bound systems, connections between a subscriber station and an access network are usually controlled using a point-to-point protocol (PPP). When establishing a connection, the subscriber or the subscriber station establishing the connection is authenticated, which among other things. The basis for a central settlement of accruing fees can be. The RADIUS protocol (RADIUS: Remote Authentication Dial In User Service) is known for authentication purposes.

Do such communication systems offer the subscriber stations e.g. a computer or host, a network access for data transmission, e.g. for Internet services, a configuration is carried out when a subscriber station is installed, in which all the settings required for data access, in particular IP addresses (IP: Internet Protocol), are stored in the subscriber station. These allow the subscriber station, or the subscriber, support services that are necessary for the execution of the desired data service, e.g. Internet access, which is essential, and to contact network components on which they run. In addition to e.g. the IP address of an HTTP server that enables a website to be called up conveniently "at the click of a mouse", including the address of a DNS (Domain Name Server), which determines the IP address belonging to a subscriber, and the address of an SMTP server (Simple Mail Transfer Protocol), which is necessary for the transmission of electronic messages, known as e-mail.

In addition to the communication systems listed above, there are data networks that are usually built up locally and are designed for the general connection of data stations, which are subsequently only used to distinguish them from the previous ones. called designated subscriber stations and without restrictions as a host. Two host computers can be connected to one another and to network devices such as an access server either directly or via hubs and bridges. Data packets are usually transported between a host and another network device via IP (Internet Protocol).

When connecting a host to a network, for example a local data network (LAN - Local Area Network), the host is connected by a connection or access server using e.g. the so-called dynamic host configuration protocol (DHCP) assign an IP address under which the host in the network can be clearly identified and addressed. In addition, addresses of auxiliary services important to him or of network components on which these services are executed are communicated to the host in this network.

A host is usually connected to a local network by wire, the last section of a wire-based access in newer networks being able to take place wirelessly by radio. A local area network that supports the wireless connection of hosts is generally referred to as W-LAN (Wireless Local Area Network).

When establishing a connection, authentication and authorization of the connection-establishing host takes place, if at all, in an authentication and authorization server, which can optionally also enable central billing of fees incurred (AAA server).

The communication systems and networks described above thus differ in terms of many features, so that a direct connection of stations of one system with those of the other system is currently not possible.

A subscriber station of a telecommunication system must have one for the installation for an IP access cυ ω tt P> P ¹

Cπ o Cπ o Cπ o Cπ

Hi O PJ p P) N σ> ιQ σ W 3 <rr 3 cn tr <N U5 O: <! he he rt o rt 3 Φ PO rt cn φ <d! -r er P ⁾ 3 d d-- P d H- Φ Φ Φ Φ dn P- • Φ Hi P- P- Φ P- PJ d P- P - φ ⁾ p- • ö P- Φ

3 3 Φ 3 Φ H 3 rt H 3 rt 3 tr 3 tu P. Hi 3 P- O rt 3 rt 3 w rt o P 3 P

\ Φ P cn φ «3 o CO N σ CO NP ^» Φ • Φ Φ φ P Φ ιQ Φ rt φ 3 φ Φ er

CT Φ φ P P- N t P ⁾ H- rf d - - 3 P d 2.CO 3 Φ> 3 3 n 3 P-

PJ tu P ⁾ 3 er - d rr <3 HNH £ P d: ü rt 3 Φ 3 d: 3 φ P> 3 3 3- 3

ω dd P- O: O 3 α N Φ O- O d Φ 3 H er PP ¹ vα φ er P- ö d Φ P- Φ Φ α

P- cn o P- φ - er ιQ H- H d 3 3 p ⁾ O: Φ Φ tt P- n et 3 ⁾ rt rt rt 3 P d

Φ ι- {tr t rt Φ P- ω Hi 3 ιQ O ■ 1 φ n cn N - N 1-1 Φ rt ON ιQ 3 p ro rr Φ 3 rt α w = ιq! m P- 3- 3 t • x) d Φ Φ rt Φ 3 Φ Φ rt iQ rt P- P- 3 • Φ φ ιQ O Φ o P- 3 α J Φ ^• - ^• 3 3 PN 3 PJ (rt 3 φ cn

Φ n 3 OP er φ 3 P- P- n O P- 3 ^ cn PJ d 3 rt P- Φ 3 P ⁾

P "P- P φ J ι-i φ - Φ CO m Φ Φ Φ ιQ Φ P- φ P- 2! D

≥; φ cn p- P- o σ H H Hi ι-3 3 p,? 0 O Φ = p- P- P d rt cn \ -> Φ H

CD 3 Φ Φ 3 PJ 2. o Φ Φ rr Φ ιQ er ^{^} er 3 3 Hi 3 Φ N n tsi rt rt & er rr er CO rf H- P- tr P- P- Φ Φ Φ φ O iQ P • pd N cn PJ

N Φ P- Φ φ φ H- n iQ 3 cn rt Φ wd = Hi P 3 m} - ^• s: ≤ 1 or

N Φ P- φ 3 r + rt Φ 3 φ Φ Φ P ⁾ O o Φ IQ P- P ⁾ t? er Φ CΛ td «rt 3 3 d P Φ - 3 Φ H P- 3 P> 3 CO 3 cn ö P- rt 3 3 P- Φ P- POP" Φ ιQ PJ Φ Φ Φ 3 ⁾ H • 3/3 3 3 Φ 3 Φ p- P ¹ α 3 P- cn l = rd P pj: er 0 3 0- rt rt 3 d? VQ rt Φ P- φ 3 P- tr Φ Φ d Φ 3 O Hi

2 Φ P- φ Φ Φ o M φ er O: Φ Φ N rt 3 3 Φ 3 Φ P I. 3 3 P- OO ιΩ p- Φ ϊ 3 H 3 H Φ er 3 CQ d N Φ cn flT d Φ t-3 φ U3 • rt P

Φ P- p- P Φ --- <! 3 H Φ 3 O g P 3 rt 3 0. rt 3 Φ rt er α

3 3 EU p- HO Hl φ 50 N P- Φ - ⁾ Φ Φ Φ μ. P- Φ P ⁾ Ö ω N Φ

Hi P 3 O 3 Φ 3 Φ d Φ 3 CO d H ⁾ PP iQ ≥! P ¹ PP ⁾ rt ≤ P

P 0- r + Φ ü n "3 3 P- s; O H <& Hi Φ 3 Φ φ 3 P ¹ X Φ • P ¹

≤ P> Φ P- ≥; cn P ^J N H- 3 Φ N cn 1 s: er 3 5ö 3 rt φ 3 φ P- P- co 3 iQ ⁾ ^• - ^• cn 3 d O .3 Φ P "• CO ⁾ Φ p- P- Φ N 3 "Φ P 3 <! n

3 rr Φ C o P- 3 Φ n tö φ ---. P d Hi Φ rt iQ rt d Φ Φ! -R j-.

P- P 3 p ^J CO PJ «H" Φ Φ r + CO P '• 3> o. Rt O rt rt Φ Φ φ Φ φ Φ P Φ dd OP d P- o 3 3 NP) Φ cn d • 3 φ Φ P ^< P o P 3 P ιQ e er 3

3 W f P ^" Φ Hi P ¹ iQ rr 3: ≤ <3 PJ PP ⁾ t CO Hi φ er P- ιQ rt O Φ P- O H- N pr Φ er Φ 3 ιQ tsi 3 cn d: - 3 rt <O 3 Φ 3 d 3 O 3 er Φ d H- p- P 'CD π n> »d cn er rt OP ⁾ φ PP o. Tf

P? "ö 3" Φ H- 3 3 3 3 P ¹ Φ π 3 ^J 3 ONS Φ iQ} - "rt P Φ d 1 d P ⁾ Φ - rr φ ιQ P- H Φ H P- φ - • OP Φ o P- er Φ P Φ 3

P- σ P rr 3 P H- p 0- Φ r + Φ 3 O 3 3 ^J to O, er υq O p- 1-1 Hi P- iQ n o.

Φ P- P Φ £ 1 Φ Ό c 3 Φ and others Φ σ P- 3 3 d. φ wd P- 3 3 P "O 3 cn P φ μ. 3 Φ P H. H- Φ 3 Φ 3 OJ 3 O s Φ Ϊ 3 P- 3 Φ P- P ¹ φ P> φ

3 φ P Φ o 3 Φ 3 <et Φ O: d Φ 3 Pt \ 3 o- d d Ω tQ d cn

Φ CPJM φ 3 Φ φ 3 cn P ¹ α N 3 M s: Φ 3 3 - rt O Hl CO

3 r + Φ rt 3 S O CO d: H P O 3 o d rt ω PJ: 3 o P- iQ Φ o er Φ

Φ 3 Φ Hi Φ Φ ^ Φ er er cn J Φ ö tr Λ- Φ ü tr Φ 3 3 er Hi P ⁾ 3 μ 'α. P iQ? R 3 p ⁾ H- Φ P- r + rt 3 P- Φ o KP ≥! P- 3 ^• ü Φ Φ rt d φ PJ N PJ P ⁾ d O: er 3 H 3 Φ • vQ 3 3 P ⁾ 3 <l J P- P- Pt P- 5: μ. rt 3 CO er 3 ιQ Φ 0, 0 P- 3 d Φ φ Φ m rt 3 3 • τ) P) 3 3

N he ≥! rt P- Q, H "<^) Φ d 3 P- S r + m Φ cn rt P- P Φ P- Φ 1 Φ P P- rf P- φ ⁾ P rt Φ H- 3 Φ P- 3 P- Φ i Φ 3 φ 3 er P ¹ er ffi cn> P- φ rt <!

Φ Φ rr ω d O o H 3 ιQ <! rt P- \ -> P- O Φ P- Φ P ¹ O Q. 3 [o

3 π- N Cfl; * Ό. -. 3 ^{^} 3 φ O Φ rt P> er d = Φ 3; Φ OXP Φ Φ P

Φ P> φ rr P ^ Φ O 3 3 Φ O 3 H er P ö o rt O 3 3 P- 0 ⁾

«Α 3 3 d O ω 3 φ w α <! Pi d φ φ Φ <J ⁾ d 3 M cn CO cn 3 d

P- he P Hl ω - P- Φ α Φ Φ he P- P P- rt 3 § P- cn rt OP ¹ rt Φ cn

P- s:%

O lh CD d: <φ 5 H-? 3 p. ) P cn rt O Φ ιQ d 3 P- CD 0 P> P π> NP ⁾ £ rt σ sn φ cr φ 3 Φ 3 P 3 3 3; * r P ¹ <

3 P- rt P 0 becomes P>: σ φ P- PPJ ⁾ <J 3 P- P- μ. JP "Φ o

Φ 3 Φ p. P d er tu 3 Φ - P ⁾ 3 3 1 P- 3 ω • x ⁾ Φ •%. 0 rt P ¹ 0) 3 P rr P φ 1 3 N Φ H "1 1 1 er P- HP ^{) ^} cn P- fD 1 rt

Φ φ s: 1 1 1 Φ P- O 1 1 1 O 1 3 1

P 3 Φ • H 1 1 1

bridge between a terrestrial network device and a subscriber-side network termination device. These systems are known as Wireless Local Loop (WLL). The use of such radio technologies now in turn allows data transmission on a shared medium (shared medium), the air interface, and thus a theoretically best possible capacity utilization of this medium.

Shared transmission media are much better suited for the transport of packet-switched data, in particular IP data, since they best meet the needs of an Internet service user for the transmission bandwidth (best effort).

However, data services are increasingly being introduced which place certain demands on the quality of the transmission medium. One example is the transmission of voice over an IP connection, known as Voice-Over-IP (VoIP), which requires a constant bit rate and a minimal delay of the individual data packets during the transmission.

These new services, such as voice over IP, video transmission, interactive television, have different requirements for the transmission medium. There are services that require a constant bit rate, others only allow a minimal delay (latency), still others are sensitive to fluctuations in the transmission delay of the data packets with one another (itter), and still others require several of the above-mentioned conditions. These requirements, which place different services on a transmission medium, are discussed in specialist circles, e.g. the IETF (Internet Engineering Task Force) or the 3GPP (3rd Generation Partnership Project, UMTS) under the term quality of service (QoS) summarized. While in circuit-switched systems, usually systems with a constant bit rate, e.g. 64 kilobits per second, QoS is guaranteed by the individual transmission medium itself, e.g. jitter and latency of an ISDN connection with a constant bit rate, in the case of a shared medium (shared Medium), e.g. a broadband air interface, not possible without QoS guarantees for individual connections without additional distribution algorithms.

For this reason, there are various technical committees, e.g. IETF, efforts to mark individual data streams with individual QoS parameters, which enable a packet distribution algorithm (scheduler) to meet the QoS conditions of individual connections as best as possible. The well-known DiffServ Standard (IETF) or IntServ Standard (IETF) should be mentioned here.

It now depends on the implementation of the packet distribution algorithm how effectively the packets can be transported in a shared medium, while taking all QoS requirements into account. As an example of such a packet distribution algorithm, reference is made to the known methods Class Based Queing (CBQ) and Weighted Fair Queing.

A particular problem arises when the shared medium is a radio interface. In the case of radio connections, it may be necessary to redirect the radio connection between a data terminal device, for example a mobile radio telephone, and a terrestrial network device for the wireless connection of data terminal devices (for example radio base station) to another terrestrial network device for the wireless connection of data terminal devices. In professional circles, this procedure for handing over the connection is also referred to as handover or handoff. This handover may become necessary if, for example, a data terminal device area of one radio base station into which another is moved. Furthermore, such a handover may also be necessary, particularly in the case of stationary use, in particular also in the case of wireless local loop, if the radio propagation conditions deteriorate, for example due to interference.

In the case of a handover of circuit-switched connections, it is in previous, connection-oriented radio systems, e.g. in an implementation according to the well-known DECT GAP standard, when selecting possible radio or radio base stations for which a handover would be possible in terms of radio technology, it is possible to select only those which have sufficient free transmission capacities.

In the case of a shared medium, known as a shared medium, in which a data terminal connected to this medium receives every data packet that is transported via this medium, with several packet connections with different QoS being transmitted on the medium, it is not sufficient, however, select those base stations with sufficient transmission bandwidth as possible target base stations for a handover, since these have the sufficient transmission bandwidth, but may not be able to support the QoS of different connections.

The object of the invention is to propose a method and a data transmission system that enable a simple handover of QoS connections in a shared medium.

This object is achieved by a method having the features of patent claim 1, in particular a method for transferring radio-based data connections with quality features between radio base stations, or a data transmission system. stem for performing such a method with the features of claim 22 solved.

Advantageous configurations are the subject of dependent claims.

A fact advantageous for this method is that there are radio systems in which the initiative for a handover comes from the network units controlling the radio access devices, e.g. a so-called base station system in the GSM mobile radio system consisting of base station control (BSC - Base Station Controller) and base stations (BTS - Base Transceiver Station), as well as systems in which the initiative comes from the mobile, radio-connected data terminal equipment , e.g. PT (Portable Termination) in a DECT cordless telephone system. The method can advantageously be used for both types of access, but is not limited to these.

In a method for managing radio-based data connections with individual quality requirements between radio-based network devices, taking into account corresponding quality requirements in a terrestrial data transmission system with at least one radio-based network access device and at least one radio-based one

Subscriber devices that communicate with one another via a packet-oriented radio interface / shared medium are advantageously determined by one or more parameters for at least one of these subscriber terminal requirements and / or resource consumption and / or free resources of the data stream via the radio interface between at least one subscriber terminal device and the network access device communicating therewith , Such a determination offers a simple possibility to ensure, prior to a handover, to select one or more of the network access devices or base stations which can alternatively be selected for a subscriber terminal device, which are for the desired service have sufficient resources available. It is particularly advantageous if the resource stocks, free resources and / or used resources can be determined directly, depending on the consideration when determining parameters in the area of the subscriber terminal device or the network access device.

Recording or determining the resource data in relation to corresponding data in the network access device enables the necessary parameters to be made available directly in the same device in which the data to be processed are generated.

A detection or determination of the resource data relating to corresponding data on the subscriber side, in particular in the subscriber terminal device, enables the determination of the resource requirement for a connection directly in the device, which has to request corresponding resources from a network access device.

By comparing the corresponding parameters, it is possible to take into account the quality requirements of an existing total data stream via a subscriber terminal when the radio connection (handover, handoff) is transferred from the communicating network access device to other radio-based network access devices.

By determining the required radio resources before actually initiating the establishment of one or more radio connections, one or more suitable radio-based network access devices can also be selected before the connection is established by comparing the corresponding parameters.

Describing at least one quality of service quality parameter, in particular latency or jitter, as a parameter by means of a prioritization constant offers a simple possibility to manage these essential quality features for the quality of service.

Determining at least one of the data streams by a data stream parameter, in particular as a so-called data stream constant by the product of its prioritization constant and bandwidth, offers a value that uniquely describes the resource requirements of an individual connection. The term constant may not be understood as a permanently fixed quantity, but rather as a fixed quantity for a current connection.

In particular, the total resource requirement of a network termination device can also be determined using a single communication parameter. The total resource requirement is an important factor, since when a connection is passed on, not only a single connection from several connections is usually passed on to another network access device, but possibly also. several or even all currently existing connections must be forwarded. The communication parameter advantageously results as a communication constant from the sum of the data stream constants of all data connections via this network termination device. The resource consumption of a radio-based network access device is accordingly simply the sum of all

Communication parameters of the network termination devices connected via radio, in particular as a kind of resource constant.

The totality of all free, in particular available free resources of a radio-based network access device can be determined in a simple manner from the difference between the total resources of this network access device and their used resources. This results in a quantity which is expediently referred to as the free constant. The totality of all free resources of the radio-based network access devices can therefore be used in particular for decision can be used for the transfer of a radio connection to another radio-based network device.

Information about free resources of radio-based network devices can be communicated to a network termination device expediently via a general signaling channel with a so-called broadcast function or in a new or already existing message channel. There is also the possibility of providing a network termination device with information about free resources in radio-based if required

Network access devices via a dialog, in particular a dialog initiated by the network termination device, to query the radio-based network devices. Regularly updated information about free resources in radio-based network devices can be communicated to a network termination device each time a connection is established and / or when there are changes in the resource consumption in radio-based network access devices, in particular via messages.

In a suitably equipped network termination device and / or in a control device of the data transmission system, the decision regarding the transfer of a radio connection can be made on the basis of the parameters, so that only a limited number of system devices have to be equipped or retrofitted accordingly.

The radio interface can in particular also in accordance with the Bluetooth standard, the DECT standard, the HomeRF standard, the IEEE 802.11 standard, the IEEE 802.Ilb standard, the IEEE 802.11a standard, the HiperLAN standard, the HiperLAN2 Standard, the GSM standard or the UMTS standard can be managed. Of course, implementation in future systems and standards is also possible. The QoS parameters can also be derived from DiffServ prioritizations.

The QoS parameters from the header data of a data packet, e.g. the well-known Type-Of-Service (TOS) field of an IP CO O>) P "P> π o Cπ o Cπ o π

O ιq 3

P- pι φ

CD 3 P

P Q Φ cn 3

3 Φ φ P- Φ "3 P-

P P 3

Φ P- P

P n p-

Φ 3- Location - d rt

P> 3 d

P i 3 p ⁾ iQ

3 Hi Φ

Φ: 3 rt P

Φ d

P N 3 d α pi d p-

CO 3 Φ

-a 0- P

Φ φ er cn

P- rt DJ

3

P- Φ P-

Φ P- rt rt 3

Φ i p- O cn <! j3 rt O §

• 3 d

3 p. P-

P- N φ P- cn φ φ P

3 Φ

3

P- d

P 3 n pr ≥!

Φ

Φ rt

P- N

3 N

Φ d

3 1

In such a radio data transmission system, the data network can in particular be a PSTN / ISDN telecommunication network, a broadband telecommunication network (xDSL), a mobile radio network, in particular 1st, 2nd or 3rd generation, a local data network (LAN) or be a television network. On the subscriber side, e.g. also be designed as a "wireless local loop" access network.

An embodiment is explained below with reference to the drawing. Show it:

1 in the lower left half of the picture a conventional wired telecommunications system, in the upper left half of the picture a radio telecommunications system and in the right half a local data network,

2A and 2B show a schematic structure of a telecommunication network with a device for dial-up connections to Internet access in the implementation of the wired access or with the aid of a so-called wireless local loop system,

Fig. 3 shows a concrete embodiment

As can be seen from FIG. 1, bottom left, a telecommunication system or network preferably has wired subscriber devices, for example telephones T and computers or hosts H connected via a modem device. The telecommunication system can be, for example, an integrated services digital communications network ISDN (Integrated Services Digital Network), a conventional public switched telephone network PSTN (Public Switched Telephone Network) or a digital xDSL system (DSL: Digital Subscriber Line). O co ro K) P> P ¹ cn o cπ o Cn σ Cπ

Ω

Φ

CO cn

O i

3

Φ

P ¹

,

O co NJ t P> P ¹ cπ 0 Cn O Cn CD Cπ cn ω 5 3 cn cn cn Q 3 Φ o •

CO CΛ O rt> Φ

2J 2; rt N CO N

Φ Φ P-

, -. - _^ 3 3 1 φ cn CO P ¹

P ⁾ φ ON cn rt P d Φ Φ φ <i Φ ιp 3 z P- P Φ Φ 2

PJ 3 H _l P φ

* <a H d: P> rt

P- pr P ¹ N cn Q 3 P φ

CΛ CO P rt πj P-

2; 2! p- P ⁾ 3

- - ^, - "Ω Ω P

• p α f P- d rt P- Φ Ω

3 d Φ rt pr α 3 cn rt iP Φ 50 d

0 φ PJ ps

P. 3 2; among others

Φ Φ P- Φ

P rt 0 3

Z N φ P- i CΛ, _!

P- φ O Φ N ^ ps 3 P • cπ φ φ Ό <tu

P P- 0 P- •

3 3 Ω

2; φ Φ Φ cn φ P 3 ^• - ^• CΛ rt rt - 2

N pi Φ d: d PS d _^^ er CO 3 CΛ

Φ Pl Φ 3 • U

P d: X P- Pi i pr P- rt CΛ J P co rt

3 Φ rt Φ CΛ u PS P- P ^> d

CO φ er Ό

? Φ P J Ό

0 3 Φ P 0 ü. PS P

Ό w P. rt

0 0 pr Φ

PS JE! j: 3 2Y

Φ ^• ö d O

3 0 Hl σ rt 3 P- PJ Φ φ Φ ua rt cn

3 φ rt P- 3

Φ 3 1

O co t \) κ P "P ^> cn o Cn 0 Cπ 0 Cπ

P- 3 pα pα rt tu α ö Sl p. ö 2 Ω 0 cn cn 3 d Q tsi cn PJ PS * _ cn O: φ P- do Φ Φ P- PJ P- PJ Φ P- φ φ pr Φ α n P- rt p- 3 CO d Pi rt 3 tsi d O μ. rt pi pr Ω er cn P P- Φ rt Φ co p φ rt P φ P Φ φ Φ Φ rt 3 P P> pi and others • 3 er and others

3 P ϊ? w rt P cn ro CD N 3 P Φ P N cn P rt p. rt Φ tt) and others p- •

P- Φ Φ Φ cn Φ τJ 3 3 pi _ {3er JP 3 P- Φ p- Sl P- co P- rt and others • ω P * P ¹

3 3 P 3 3 cn P- PJ 3 d S ^ Pl Φ P "φ C Hi pα d PJ cn rt 0 Φ er Hl

Φ P- pα φ Ω Φ cn P d Ω rt rt ua tu Φ P- P- H <P P rt Φ S er ö Φ d N

Z d PJ rt MP ¹ pr rt CΛ pi pr P φ P- Φ P cn 3 0 ua rt d 2 CO Φ § P- 3 Φ φ 3 σ Φ rt Hl N ^ 1 Hl Φ rt cn P Ω cn d ro φ 3 Pl ω P- cn P- J co P- P- pr Pi o P- 1 O P- _^ rt φ pi pr cn d cn 3 P- P rt co • ö cn ua φ rt 3 P φ d: ua i er φ Ω for φ P- PS rt including CD d Z 2 -— P- • <rt

PS φ φ PJ φ PP and others fy • 0 and others Φ P pr rt Ω. Φ cn OOJ Φ cn rt PJ 3 P- 3 f 3 Φ 21 g Φ P P- rt d ö pr P ¹ NS et al. PP "α P ¹ rt er - • 3 Φ 3 rt Φ Φ 3 P ^» 3 3 φ < P- Φ PJ φ φ O ^ Φ CO i Φ Φ

P- 3 3 Φ Φ rt P- d P. N t " ¹ and others P ¹ rt P ⁾ P- φ 3 σ d tu OP Pi 3 P-

Ω P d. Pi N 3 d 3 id P "Φ d 3 rt P- Pi O and others cn pr PJ cn <3 PJ • P P- er N P- PJ Φ 3 Hl φ 3 P & O co P- Φ P cn t ⁾

Φ rt Φ P- rt α cn tu φ Φ d rt z and others • 3 CΛ P <3 rt 3 cn CO P-

3 P- JP 3 Φ JOO • Ω PJ co 0 φ> pι O 3 Φ 5 ^! rt J rt S φ φ rt rt PP t- ¹ pr rt Ω P P- P er d er tu P 0 P rt <Φ s 0 P <

Φ P- Φ Φ P- Ω pα φ rt P- pr Φ Φ Hi and others 3 φ Q 3 O rt φ er pr

P- ö O P- φ P- 3 pr o P- Φ O P d 3 Φ cn Φ Φ ω s: S p- rt P "P H P- σ J

3 PJ 3 P <P PJ φ cn 3 3 P- Φ 3 rt 3 co α d P- n rt PP ¹ t ua rt P ¹ Φ Hl

Φ rt Φ Φ er PJ CO cn rt CΛ cn Φ 3 2 P- rt T Φ Ω φ rt O Φ Pl P ¹ • Hl cn rt

3 Φ 3 P P- 3 rt P ¹ Φ cn er φ pi 3 pr Φ 3 pr <P ¹ P CΛ Φ ds:

PS Φ 3 Φ σ pα o P- ^■ Φ cn rt d 3 PJ P- Φ er Φ d P ¹ - _" ^ P- σ 3 P. pα pα P- Φ ¹ PJ ^ ~ rt cn ps P- N Ω rt P ¹ Ω pα P Φ P 3 Φ Ω ^{) for} P- P- d N 3 d P Φ rt er PJ φ rt 3 pr Φ rt pr PO er and others cn Ö pr er CO rt φ er d NP 3 3 Φ Φ P ^> Φ 3 cn Φ P- Φ Ω d cn rt § Φ • Φ ia d 3 • O 0 UOP 3 ia pr 3 cn Φ J CO ^ω P-

P- among others o 3 N φ Φ N P- cn P

<! Φ ua Ω • 3 Φ cn PH 3 P ⁾ P- P rt P ⁾ P- P P. rt cn rt nd rt Φ Cn

Φ P 'pr Φ P- φ P- co d: 3 3 rt φ rt rt cn P- Φ Φ rt cn Φ 3 3

P Φ Φ rt w P φ rt Ω ^ P- er rt d Φ 3 P rt Φ PS P ^< _. cn P- 3 O: ia P- P- d P- N pr d Ω Φ 2 3 3 cn N φ φ er ¹ dt ö CΛ 3 P- and others

P ¹ rt Ω 3 3: φ 3 3 pr P μ. P- rt Φ »including P ro Φ 3 CΛ ^ - S cn

Φ Φ pr et er p- φ fr rt rt Ω N N Φ P tu P- P ^ fr n H • • Φ rt P-

P- rt pα Φ 3 S rt 3 P ¹ P ^ P- d • CO <Φ S 1 CΛ P Ω

Ω PJ PJ d PN 1 φ P- Pi -> Φ ti Pl rt tr ¹ P co ^ P- φ pr pr er PJ d er Φ Ξ rt Ω and others d P Pl d Φ α φ P ⁾ 3 ps 0 0 g M φ P- Φ er Φ a tu f Φ N pr er 3 φ Φ P- Φ P P- φ g CO P 3

PJ? Φ Φ f P i t_- P pi and others 3 P- er P ¹ P <rt P 3 0. -. d = P->

P o cn CO PJ d: φ 5 * S P Φ P "Φ Pi pα Φ P- d α er rt 3 d

* • 9 Ω Φ 3 Ω 3 Φ t → 2: 3 J 3 Φ P 't- <P Φ P- rt 3 cn P ¹ rt 0: cn

3 pr pr 3 r P- 3 tu- φ Pi Φ d pr φ Pi er P- cn P- cn Φ P- φ ua Hl er Φ P ¹ φ Φ O cn • 2J P- σ cn er pr rt 3 rt d 3 rt Φ fr rt P Ω 3 P ^J :

P- PS o 3 3 rt rt - »cn Φ P- Φ N φ N cn ps φ p- PJ PJ pr P- pr

Φ cn PJ Pi M rt P- 3 P Φ Φ P rt P- 3 3 rt rt M Φ cn Ω H. rt cn Z er. -. rt Φ P- CΛ cn P 3 cn Φ PJ Φ P- Φ P- rt Λ PS φ pr d φ W φ φ Φ tu P- P- 3 rt Φ Ό Φ co • rt P. 3 pα φ 3 0 d 3 Φ S rt P- 3 P P- PO 3 J P- P- PI P- rt J er φ 3 K P- φ cn and others

3 P- 3 rt rt 3 φ d 3 PJ PH rt Φ rt 0 P- s tu Cn CΛ Ό & P

PJ Φ Z Φ P- Φ Hi • <P- P ¹ Ω Φ rt 3 P- r Φ P- 3 0 φ cn n 3 for PJ> Hl er φ 3 3 ia 3 P- OOP "cn pr 3 P- O ⁾ P- Φ PJ er rt • <φ d; rt dd:

Φ tu P Φ P P- 3 0 s: O 00 3 PS P rt P- P CO er 3 P P- cn P

PP z er 3 cn Φ ι Φ Pl PJ 3 φ 3 PS PP ¹ p- rt N rt NO Hi d: Φ PJ φ N Φ Ω 3 J P- d 3 Φ co S rt Φ z Φ Φ Φ zd 3 d = α Ω 3 3 cn dz 3 pr P ^J co Pi & 3 d CΛ Φ pr among others 3 3 pr PJ

PJ f Φ 3 P- φ J Φ φ Φ l 3 P- P- P cn cn and others 1 co

P φ α 3 α 3 cn d o PJ P d Φ ω 1 1 1 Φ 1 Φ rt 1 Hi 3 Φ CΛ 3 P rt 3

P 1 1 3 1 0

in addition, a possibility of segmentation or distribution of the data flowing through.

In addition to hard-wired connections in a data network LAN, there are also connections via radio interfaces V in radio data networks LAN (Wireless Local Area Network) to radio-supported hosts W-H. the so-called Bluetooth radio access protocol (Bluetooth radio AP) can be used. It is a very simple protocol that only supports a point-to-point connection between two devices currently communicating with each other. It is therefore much simpler than the protocols used in cellular radio systems.

If necessary, a radio interface based on the IEEE 802.11 standard can be used in such systems.

Such a data network (W-) LAN can also have one or more service servers, in particular with the logical devices described below, e.g. a domain name server DNS. However, some of these facilities can also be included in other or independent facilities, whereby they can be divided and / or set up as a client or server part.

An HTTP server allows the subscriber to access the Internet pages selected by him "with a click of the mouse" without having to know the specific IP addresses of the respective providers.

Using a dynamic host configuration protocol DHCP or a so-called DHCP server, when a host H is connected to the data network (W-) AN, an address, in particular IP address, is assigned, under which the newly added host H im Network can be clearly identified and addressed is. In most cases, the address assignment is variable, so that the address space, which is only available to a limited extent internationally for all hosts H, is not exhausted. The DHCP server can advantageously assign IP addresses for a limited time, so that a host H must request a new IP address after a specified time.

In addition, the access server AS can have an authentication and authorization server (AA server), which, as an accounting server (AAA server), can optionally also enable central billing of fees incurred.

Other server devices can be used to connect to networks such as the Internet, for example so-called P0P3 servers and / or SMTP servers (SMTP: Simple Mail Transfer Protocol), which are used to exchange electronic letters (emails).

In the ideal case, the introduction of a device referred to below as the service selection gateway or service selection gateway SSG (Service Selection Gateway) in a data network (W-) LAN is sufficient, with the simple network management protocol known per se for controlling the functions required (SNMP: Simple Network Management Protocol) can be used.

As a rule, a commercially available standard host WH with a central processing device CPE and a network interface card NIC (Net Interface Card) can continue to communicate via a radio interface V with a commercially available bridge (AP). Existing protocols can be used for DHCP access, such as 802.11 or a HyperLAN radio access protocol. The bridge forms the interface between, for example, the protocols for data network radio interfaces (802.11) and data network cable interfaces (802.3). o co r M P> P ¹ cn o cπ o Cn o π

<-t co J ua rt o Ω P cn ^ cn cn Pi PZ Pi co • ^ X Ω rt Pl PP cn S3 N rt π0 ua Pl φ rt d P Φ Φ 3 P pr P- P- d Ω rt PJ φ Φ do P- ü pr Φ φ P- P- rt P- Φ Φ d Φ P

PJPJ and others P cn Φ Ω cn P pr Φ P-, PP pr and CO Φ and others P ¹ Ω Ω Φ φ cn PPP cn φ rt and others P ^< Ό 3 pr cn f P ¹ pr P- Ω \ P- « ¹ cn P φ pr pr 3 »Φ fr

3 P- or PJ d φ PJ rt rt cn d rt o • ^• *. pr σ φ 1 P- 1 rt rt cn P rt rt Φ

Q. O Φ ua Φ? cn rt 3 d pi Ω D3 1 d Φ pi t CΛ O: Φ idd er d OM 1 N 3

Φ 3 3 P Φ Hi N 3 P- pr Φ t P cn cn tu "<Hi P o P P N cn P- CD <rt

P- rt N Φ rt d-. Φ ao O P P- PJ PJ ^ P- CO Hi Φ 3 ao ia s: Φ P p- φ CΛ

3 Pi pr d 3 Φ pr cn Pl 3 p- 3 3 cn 1 J φ P, N rt Φ 3 φ • ^ 3 P P z • <

P DO Pi: P cn P> Φ rt P P- t P PJ Φ Φ 3 P- d S 3 p- Pi P er φ cn

P- CO P ¹ σ O 3 d Pi tu P rt P- Z cn Pi cn rt cn P- 3 rt Φ P 0 1 ia P P- P- P- P rt

Ω rt P- P- P 3 O π cn Ω Φ cn cn φ cn and others P ¹ cn μ. P- P • P CD Ω P Φ pr ^ Hi Φ rt ia P Pi rt pr P ¹ rt P- 2 cn rt cn P- r Φ er φ rt cn pr Φ 3 rt PJ UI- Hi P cn φ rt _{^ ^} . tu Φ rt Ω pi cn Φ φ Φ Ω α pi 3 Φ rt tsj Φ σ rt d P d 3 Φ CΛ Φ er cn cn Pi CΛ P "d pr rt cn rt S P- P- pr P- rt P- N ! Φ d 3 ^ -

PS 3 Z Φ <P- Φ Ω pi JP ^J P Φ P- rt N P- P Φ P Φ a P- PJ cn tu NP and others O: φ POP P- pr 3 Z Φ and others O Pi NPP • cn P - OP Ό <Φ P "d = inter alia Φ P

Φ P p- <P φ cn P- rt P- φ Φ Φ 3 rt d φ Pl rt 3 ia P- O P d ia 3 P- 3

3 d ¹ and others P Ό oo P <3 P- Φ P- and others φ P- 1 PJ cn Φ φ P co Φ P ¹ pα φ Φ

3 co Φ P- cn t P- 3 3 O i Φ P- o Φ P "cn cn P ¹ tsi P- rt P- 3 3 d er lO φ co M 00 φ pι d Φ 3 3 cn and others P φ • Ω cn d Ω o Ω 3 P-

PS σ P- Φ er OP ^> φ pi PP s_5 P) Φ ia cn P- 3 cn co pr s: ia po pr P- rt P "P> rt J P- PJ CΛ 3. - .. cn ia l O tu P cn α cn cn rt P ¹ Φ cn rt rt rt cn d

Φ rt φ φ P 1 cn tx Φ P. Φ P- CΛ φ tx φ Ω Ό 2 Φ o P- s: P ¹ pr 0 J ÖD

P Φ o Φ Pi Φ P- O d co. -. Φ P- o P pr PJ 3 co co Φ P- 1 er Φ PP φ pr 3 and others 3 φ P- co Ω CΛ P Ω 50 PP 3 Ω Φ Ω co φ P- Ω ^ P ¹ P- α P

PJ P ¹ ü 3 φ rt PJ rt Ω pr P ⁾ i PP P> Pl and others Ω pr φ cn pr d P- P Φ rt α

P ¹ Φ Φ PJ P 3. ¹ Pl pr P ¹ α 3 PJ Ω P- P ¹ φ P "pr PJP Pl φ P Ω Φ P Φ Φ rt P P- rt od rt o P- Φ pr Ω P- φ 3 P- 3 φ φ f pr P Φ P 3

Φ er Ω φ CΛ 3 ia W P- Φ co o pr P- Hi pr tr <P ¹ P- CD Ω PP ¹ ZN CD PP

3 P- pr P 1 Φ X O P- cn P O O rt O P Ω rt pr O φ P φ d cn ^ P pr u>

P Φ • p o φ pr N rt er o Pi i P- ua d w rt

S 3 Ω 3 3 φ 2 Φ P ¹ d Φ i <P>: pr Φ 3 Φ P tu and others 3 Ό pr φ Φ Φ 3 o pr cn P Λ P P- P- P dd Pi ^ Pi φ S> PJ π rt Φ PJ Φ ia 3 3 t) P P- • Ö 3 rt rt p- rt for P <! ^

PS 3 Φ Φ OP 3 o C cn £ cn 3 ~~ CΛ ω CO 3 cn d φ a Hi P »CO P Φ O: α ua P rt P cn Tl ua P Pi Φ O rt Φ Φ • <P> l Φ ^• σ rt φ Φ Pi P Ω P- 3

Φ P o. Φ P- φ rt co p- P φ P cn PJ d 2 rt P- Φ Pl er p- CO P Ω <τj 3

P d φ Φ pr ia "- 'P P- P ^ P- Λ N ^^ rt P Hi N φ P d P 1 P td ¹

P- 3 P- P φ «O cn P ¹ rt d φ cn er od PT) P P- rt P H-

Ua 3 ia 3 d 3 φ P 'cn ^• ^ Pl 3 i PJ 3 Ω P ⁾ Pl cn er 3 P. Pl P rt d fr Ω co P- Φ 3 co P- rt O: φ Φ rt d pr d Φ CΛ z N o. Φ Φ o Ό rt P rt pr φ rt P and others 3 φ pi PP pr P- cn S! ¹ P ü φ z 3 rt P CO and others φ Φ

M Φ α P- φ P rt P 3 3 O 3 X d 3 2 P- d: Φ Φ oo rt Φ Ω for 3 p- • U 3 P- P- cn P- φ P- Φ 3 rt Φ tr ¹ Ö3 P- Φ cn er fr ^ rt Φ 3 pr ^ θ: Φ 3 J φ φ O 3 3 P Φ P- P ¹ rt P- φ tu Φ P ooo ¹ P d

P 3 ^J Φ ^ Φ Pl and others P • PJ cn PP Φ φ P φ o P Φ 3 P * fr P ¹ o P

3 P Φ P er φ Φ Φ cn rt φ er cn Φ P P- P- Φ cn P- 3 P ¹ o Φ NP ^{1 for} φ Φ 50 rt rt Φ P- P "cn 1 ö P- P- Φ OP cn rt Φ P. 3 P- rt Φ P "d • P- • o co

3 P J 1 cn co 3 φ rt o μ- O rt N pr Φ d 3 P- 3 P- 3 3 P- t uq rt

Φ σ Ό rt IM ^ Φ rt φ 3 P- φ φ O rt 3 and others pr pα P Φ P- d • P- J

3 3 P- J P P- Φ O d Φ ia P- P- N ia α P- φ φ pr ^ P- P Φ rt

Φ o rt P- HP ¹ 3 Φ d 50 Φ Ω P, Φ rt P rt P P- PJ 3 o rt φ P- pr σ 1 Φ Ω 3 3 3 P φ PJ C: - d P P- rt PJ i ^ - Φ d 3 Φ rt rt Φ P- π0 o

P PJ t 3 pr rt Φ d rt P er 2 P P P- d Φ O: 3 Pi o P P- P P d P

Φ 1 J <rt Φ 3 P φ P- Φ Φ Φ ia 3 cn P P Φ 3 cn • Φ O α CO φ P φ

P cn Φ 3 P- P- o P rt rt Φ rt Ω 1 cn 3 rt Φ P- P rt P fr P

Φ P- P α z P 1 N Pi pr pr P ¹ Φ σ 3 3 cn Hl d: rt c er N <P ⁾ PJ φ 1 pi φ 1 cn p: rt

• do Φ PJ P ¹ P P- P- σ 1 φ

1 P- O 1 rt tu P- er er cn Φ Φ 1 P co p- • <P 1 PJ N P-

3 tu P P- 1 1 P 1 Φ 1 P- 1 P 1 1 d P

1 1 1 1 3 1 1 1

O o MK, P ¹ P ¹

Cπ o Cπ o cπ o cn o P- φ φ P

P tu o PJ o P

CΛ

1 & pi P

2 φ

1- P- o rt

, Φ

Φ

P and others

P- he rt

P-

3 do

Φ

P- NJ cn °

Ό

P- φ

1-10

CΛ

1

pi

2 l

P ¹ he

N

• z

O o co

1 i

2 l

ISJ

Furthermore, a second communication QoS constant can be determined, which enables a statement about all resources used on a radio base station RBS1, RBS2, by the QoS parameters of all network termination devices RNTx communicating with this base station RBS2 or RBS2 , adds up, which in the example leads to the sums QoS-RBSl-Used or QoS-RBS2-Used.

Knowing the physical properties and quality measurements of the air interface VL on a radio base station RBSx, a further, third total constant can be determined, which enables a statement about the total available resources of this base station, in the example QoS-RBSl-total or QoS-RBS2 total.

The still free, unused resources of a base station then result as a further free constant QoS-RBSx-Free from the difference of the constants that characterize the total (QoS-RBSx-total) and the used resource reserve (QoS-RBSx-Used), in the example QoS-RBSl-Free or QoS-RBS2-Free.

If this value is communicated to the connected network termination devices RNTx, these can determine, by determining their own resource requirements QoS-RNTx, whether a radio base station RBSx in the event of a handover can provide the necessary QoS requirements for all data connections from connected network termination devices RNTx can.

An advantageous embodiment of this method consists in sending the corresponding free constants QoS-RBSx-Free via broadcast messages in a broadcast channel, for example the BCCH, or in a separate or already existing message or signaling channel. Such channels are known for example in the case of the GSM standard for various types of messages. A further, advantageous embodiment consists in that a network termination device RNT queries the corresponding parameters if necessary via an inquiry to a potential target radio base station RBS.

In radio access networks in which the initiative for a handover comes from the data network, a corresponding control unit in the network, e.g. in or the Mobile Switching Center (MSC in GSM), the respective constants QoS-RNTx or

Determine QoS-RBSy-Free and proceed in analogy to the above.

Claims

claims

1. Procedure for managing radio-based data connections with individual quality requirements (QoS) between radio-based network devices (RBS, RNT; RBSl, RBS2, RNTl, RNT2, RNT3) taking into account corresponding quality requirements in

a data transmission system with at least one radio-based network access device (RBS; RBS1, RBS2) and at least one radio-based subscriber device (RNT; RNT1,

RNT2, RNT3), which communicate with each other via a radio interface (V), whereby

- The radio interface (V) represents a shared medium in which each of a multiplicity of data terminals (H, WH), which is connected to a subscriber terminal (RNT), each data packet transmitted via the radio interface (V) by the at least one radio-based one Network access device (RBS) is sent, can be characterized, characterized in that - resource inventory requirements and / or resource consumption and / or free resources of the data stream, in particular total data stream, via the radio interface (V) between at least one subscriber terminal (RNT; RNTl, RNT2, RNT3) and the network access device (RBS; RBS1, RBS2) communicating therewith for at least one of these are determined by one or more parameters.

2. The method as claimed in claim 1, in which the resource data relating to corresponding data is recorded or determined in the network access device (RBS1; RBS2).

3. The method according to claim 1 or 2, in which the resource data relating to corresponding data is recorded or determined on the subscriber side, in particular in the subscriber terminal (RNT1; RNT2; RNT3).

4. The method according to claim 1, in which, by comparing the resources available at one of the radio-based network access device and the resources required for an existing data stream at one of the radio-based network termination device, using appropriate parameters (QoS-RBSl-Free, QoS-RBS2- Free, QoS-RNTl, QoS-RNT2, QoS-RNT3) the quality requirements of an existing overall data stream via a subscriber terminal (RNTl; RNT2; RNT3) are taken into account when transferring a connection from the communicating network access device (RBSl) to another radio-based network access device (RBS2).

5. The method according to any preceding claim, in which at least one quality of service quality parameter

(QoS) is described by a prioritization constant (QoS-RNTx).

6. The method according to claim 1, in which at least one of the data streams is determined by a data stream parameter, in particular as a data stream constant by the product of its prioritization constant and bandwidth.

7. The method according to claim 6, wherein the total resource requirement of a subscriber terminal (RNT; RNTl, RNT2, RNT3) is determined by a communication parameter (QoS-RNTl, QoS-RNT2, QoS-RNT3).

8. The method according to claim 7, in which the communication parameter (QoS-RNTl, QoS-RNT2, QoS-RNT3) is a communication constant from the sum of all data stream constants of all data connections via this subscriber terminal (RNT; RNTl, RNT2, RNT3) results.

9. The method of claim 7 or 8, wherein the resource consumption of a radio-based network access direction (RBSl; RBS2) is determined from the sum of all the communication parameters (QoS-RNTl + QoS-RNT2; QoS-RNT3) of the network termination devices (RNTl, RNT2) connected via radio, in particular as a resource constant (QoS-RBSl - Used, QoS-RBS2-Used) is determined.

10. The method according to any preceding claim, in which the totality of all free, in particular available free resources of a radio-based network device (RBS1, RBS2) from the difference of their total resources (QoS-RBSl total, QoS-RBS2 total) and whose used resources are determined, in particular as a free constant (QoS-RBSl-Used or QoS-RBS2-Used).

11. The method according to any preceding claim, in which the entirety of all free resources of the radio-based network devices (RBSl), in particular the free constant (QoS-RBSl-Free, QoS-RBS2-Free), for the decision to transfer a radio link to one other radio-based network devices (RBS2) is used.

12. The method according to claim 1, in which information about free resources of radio-based network devices (RBS) is transmitted to a network termination device (RNT) via broadcast, in particular a message channel.

13. The method according to any preceding claim, in which a network termination device (RNT) queries information about free resources in radio-based network devices (RBS) via a dialog, in particular a dialog initiated by the network termination device (RNT), from the radio-based network devices (RBS) ,

14. The method according to any preceding claim, in which a network termination device (RNT) information about free resources in radio-based network devices (RBS) at each Connection establishment and / or changes in resource consumption in radio-based network devices (RBS) are signaled.

15. The method according to any preceding claim, in which in a network termination device (RNT) and / or in a control device of the data transmission system, the decision regarding the transfer of a radio connection is made on the basis of the parameters.

16. The method according to any preceding claim, in which the radio interface (V) according to the Bluetooth standard, the DECT standard, the HomeRF standard, the IEEE 802.11 standard, the IEEE 802. llb standard, the IEEE 802. lla Standard, the HyperLAN standard, the HiperLAN2 standard, the GSM standard or the UMTS standard.

17. The method according to any preceding claim, in which data packets are transmitted via the radio interface (V) by means of Internet protocol packets (IP).

18. The method according to any preceding claim, in which the QoS parameters are derived from DiffServ prioritizations.

19. The method as claimed in claim 1, in which the QoS parameters are determined from the header data and useful information from transported data packets.

20. The method according to claim 1, wherein one of the radio-based network termination devices maintains one or more simultaneous radio connections to one or more radio base stations.

21. The method according to any preceding claim, in which the QoS parameters, in particular the free constant (QoS-RBSl-Free, QoS-RBS2-Free), for deciding on the structure of a o co tv> MP ¹

Cn o cn o Cπ o Cπ

Φ t t P- <! 2 rt O d Pi 1 d 2 ia rt 1 ia d = rt 1 P -3 2 1 Pi 1 IV) cn 2 O

P- P P o cn o Φ d rt P Φ pi P φ Φ P P er Φ P- Φ 1 2 t t \) rt φ

P Φ cn • rt P rt P Φ P- cn P- rt rt P PJ N P Φ P φ d P pα Pl N CO N «P rt Φ

P- • N ao ¹ co P- d Φ N ao P ia P Φ P- 3 - CO P d rt NP

P <rt O σ Q. N Φ P 'O O φ P P Φ 3 d 3 cn P P - "3 3 O P- P

O er P ⁾ PJ μ. d 3 φ d Ω P- P- P P- φ α φ P- z P- P- PO er 3

PJ rt rt Φ Φ P N pr tu P rt ia P P- P- ia P pi o α. N P Pi P rt P cn Φ

PJ P Φ Φ cn J - P Ω P Φ P cn P- 3 φ Φ P tr P- d P- tu P <Φ φ Ω pr ¹ P 3 Φ P i Φ and others P H- P- 1 Φ PPM cn Φ φ 3 Φ co φ 3 P pr P φ 1 P d: P ua 2 Hi P P- Φ P Ω P CΛ cn P- co pj: 3 rt P- cn> id: P ^J Φ co Pl Φ er ol P er P Ω pr. ^ rt Ω Ω rt Ό Φ rt rt - • rt er pr d P φ rt Φ o, Φ - «. N Φ Φ P. Φ ^ rt P- cn pr pr φ HI P "er Φ * • Φ φ P Φ α -> NP d P- 5 P- cn Φ 3 co d <! Rt Φ rt P PJ P ¹ P - Φ P- Φ Φ PP φ PJ φ rt P 3 50 P- Φ rt cπ 3 P- 3 P- Φ P- d P- P rt Φ PP ¹ p- p- rt P P- rt for Φ P Ω P 2 mi rt NO ia α 3 3 3 rt pα ia 3 PPPPP * J

Φ o P- PJ pr P- Pl Ω Pi 3 Φ pr Φ d Φ Φ et al rt cn CΛ Φ φ φ φ PJ a P d

P w P Ω P> pr φ Φ P- rt 3 Φ P- P cn Φ Ω P- pr P P »among others Φ p- 3

3 3 d Φ pr Φ cn cn P- Ω P- 3. -. rt s! P- pr 3 3 d N Ω fr

Φ d iχ) 3 P- rt 3 cn PP pr and others. -. P ¹ P <Pi Φ 1 PP Φ Φ l Hi P o pr <! rt 3 CΛ and others 3 dd OP Φ 3 di φ P- Φ tu P ¹ pα P P- P Φ d and others rt Φ

N P- Pl cn φ P 2 N d Hl φ P Öd P Ω P CΛ P- rt Λ co p- P cn Φ d P

2 1 P ua Pl d P o <rt ua CO pr z - ^• Φ Ω rt Ω Φ P- for 1 PP er - P CΛ r 3 Ω P Φ -. o rt PN pr cn pr P- P er co ao P- tr «rt i ^ O P- Φ P Φ dd P- ao d rt rt P rt φ P"<s: P t? P- CΛ co Pi 3 P Φ Ξ P- 3 2 P ⁾ 3 rt Φ <3 d Φ P- P- tr cn cn Φ d P-

21 o σ rt Φ tu j) P PJ ⁾ rt 2 P ¹ and others d cn PP ¹ rt and others 3 P- rt PP d

- • 3 2 Φ P CΛ 21 Φ P, d P 'cn co Pl P- P Φ t? among others rt Φ Φ Φ Φ P. p. P cn 1 3 Pl Cn φ 3 rt co O - • rt N a P <3 Φ cn 3 PP 3 φ and others o 3 l 3 CO rt cn and others d PJ: d co o • O P- rt Φ rt P Φ Φ α Φ φ P Φ Pi - - Φ 3 Φ 50 rt P φ Φ P Hi P _^^ φ p- φ • p- P

Φ rt P ¹ Pi pr tu Φ ö 3 Ω tu CO P- rt P <p- & PP 3 P

PN φ Ω P CΛ d P- PJ cn pr CΛ DJ <P P. 3 UI. cn P P- φ N for pr Φ P ¹ 3 3 rt d Φ φ P ¹ 3 Φ P z φ and others φ φ Ω p- 2 rt P s:

Φ. -. o P ^• "> α Φ Φ 3 P- P Hi P P- P- P Φ α Φ pr Ω Φ P-

P- X 3 Φ PP 3 P- O zo P 3 P- _^ - P ¹ pr rt o cn

3 σ 50 C cn \ P ω 50 P J pr α N 3 3 d rt N P- Ω

CO d cn τ0 tu Φ 0- rt o p- P tu Q- P ¹ rt _^ «d I. P d N Φ pr ix POP CΛ P Φ P Ω CΛ Φ rt d 3 Φ φ and others P d P Φ

PJ P- PP tsj PO Φ pr lO K3 P d 3 d P- a. P- φ 3 <among others P er fr d J ^• - ^• 3 P rt d ^ d 3 among others 3 3 Φ 3 3 P- o PJ o 3

Φ J 3 J Pl co d PJ 3 and others P- P- cn Φ φ rt 3. P Φ Φ

P ¹ Φ rt pr φ Pi 3 Φ PP ¹ * Xl and others P- Φ P P- Φ i and others pr P-

1 P- P- rt d = p- P- p: φ and others P- 21 Φ <! 3 co σ P P- σ 2 co P P

^ 3 o Isj Φ P rt 'r cn rt Pl 3 o rt PJ <! cn P PJ Pl Φ Φ φ

Φ 3) P 3 Φ cn N Pi: P ¹ 3 φ rt P- J i rt P- PP

P S cn [Sl r Φ P O d rt. -. P- Φ Φ φ 3 P φ P Φ

P o 3 P d O pr d 3 cn O ö P P- P P <P i P P Hi cn er φ er d 3 9 3 P PJ 50 o PJ φ P Ό tSI ua Φ Φ 2 P- d

Φ P- rt cn P- Φ P- Ω tu 3 2 co rt P φ J PJ φ P 3 Pl Ω i 3 pr p ^J N P- and others P d P φ Φ Φ Hl Pl - Φ P ^ pr P α P ¹ per p

P Pi Φ P φ P cn O w P ü φ P "d fr ua rt P- r φ d α er Φ P- P ω <rt P tsi <P 21 rt rt o Φ d P- P rt 3 Φ Φ P - co N O. Ω φ P- P. z Φ rt Φ cn α N g PP o cn

N for P- 3 rt P- φ pr P 3 Φ Pi P- P Φ rt Φ rt 3 PJ: 2 tQ 1 P-

3 3 P- Φ P- 3er 3 P 2 cn er 3 NP Φ d rt ^• pl tu Φ

P- φ Φ Φ P 3 P- P Φ d P3 Ω P- d = N O- to P φ ts) ^ _^ PP cn rt rt P- φ P rt PPPO tr P er d PJ o P- P • «5 cn et rt N 3 3 P- rt d ao —- φ P- Φ 1 co P ⁾ SN tu P- Φ

Φ α Ω 1 Ω Φ P d P 1 Φ P- CΛ cn P Φ pr pr OPP 1 1 Φ ^" pα 1

3 1 3 1 1

24. Data transmission system according to claim 22 or 23, which is designed as a wireless subscriber line system (WLL).