WO2002001774A2 - Method for multiplexing within the pdc protocol of a umts radiocommunication system - Google Patents

Abstract

Different data streams (DS300, DS310, DS320, DS330) undergo different data compression methods before being multiplexed in order to multiplex a plurality of data packets of several data streams (DS300, DS310, DS320, DS330) in an allocated RLC unit (radio link control) (RLC600) within the packet data convergence protocol (PDCP) of a UMTS radiocommunication system. At least one individual identification of the data stream (DS400*, DS410*, DS330) entering the multiplexing unit (MUP1) is made between the corresponding data compression unit (CA400, CA410) and the multiplexing unit (MUP1).

Description

description

Method for multiplexing a multiplicity of data packets of a plurality of data streams within the PDCP protocol of a UMTS radio communication system

The invention is concerned with the problem, in a radio communication system which can be formed in particular according to the UMTS standard, the exchange of data streams, between the subscriber equipment, in particular mobile ^¬ radios, and radio network units, in particular to improve radio control units.

This is solved by the features of claim 1 and / or by the features of claim 5.

This multiplexing of a large number of data packets of several data streams within the PDCP protocol of a UMTS radio communication system according to one of the two or at the same time according to both solution variants makes the data exchange between its subscriber devices and radio control units more efficient.

The invention further relates to a UMTS radio communication system in which the exchange of data streams between its subscriber devices, in particular mobile radio devices, and network units, in particular radio control units, is carried out according to at least one of the multiplex methods according to the invention.

Other developments of the invention are given in the subclaims.

The invention and its developments are explained in more detail below with reference to drawings. Show it:

Figure 1 is a schematic representation zes the configuration of a radio communication system ^¬, preferably mobile networks, which is constructed in particular according to the UMTS standard, and operates in accordance with the PDCP protocol (Packet Data Convergence Protocol),

Figure 2 shows a schematic representation of the protocol layers between a subscriber device, in particular one

Mobile radio station, a base station and a radio control unit (radio network controller) of the radio communication system according to Figure 1, and

3 shows a schematic representation of two multiplexing methods according to the invention for a multiplicity of data packets of a plurality of data streams, as are carried out individually or together in the respective subscriber device and the respective radio control unit.

Elements with the same function and mode of operation are given the same reference numerals in FIGS. 1 and 3.

In many data transmission systems, data is generated in packets (e.g. web browsing) and transmitted in a packet-oriented manner. For this purpose, the packet data generated by one or more applications (programs) are manipulated in different, successively run protocols for transmission in packet-oriented networks.

For error-minimized, packet-oriented data transmission, the protocols TCP (RFC 793, Transmission Control Protocol (TCP), IETF September 1981, http://www.ietf.org/rfc.html) and IP (RFC 791, Internet Pro tocol (IP), IETF September 1981, http: // www. ietf. org / rfc. tml) used: Here are the of an application in a first on ^¬ the data transmission system unit (transmitter) generated Paketda ^¬ th together with an indication of the destination of the data initially the TCP protocol in the transmitter pass. The packet data is the TCP protocol control data (TCP header) vorange ^¬ provides, among other things, information on the source application from which the data originated, (Source Port), the target application for which the data are intended, (Destina - tion port) and data for troubleshooting and detection ent ^¬ hold. The TCP header is described in (RFC 793, Transmission Control Protocol (TCP), IETF September 1981, http://www.ietf.org/rfc.html (p.14)). It is at least 10 bits (5 octets) long and, together with the packet data, forms the TCP packet.

The TCP packet is then transferred to the IP protocol in the transmitter, which precedes the TCP packet IP control data (IP header), which includes information about the sender (source IP address) and receiver unit (destination IP address), the required transmission quality and the previously used protocol (in this example TCP). The IP header is described in (RFC 791, Internet Protocol (IP), IETF September 1981, http://www.ietf.org/rfc.html (p.10)). It is at least 160 bit (5 octets) long and forms the IP packet together with the TCP packet.

Depending on the transmission technology used in the data transmission system, the IP packet composed in this way, consisting of packet data, TCP header and IP header, may become the one in the destination via several system units

Transfer the IP address of the target unit (recipient) addressed to the IP header. In the receiver, the IP protocol then first removes the IP header from the IP packet and transfers the TCP packet thus obtained to the TCP protocol. This removes the TCP header and transfers the packet data thus received to the application identified by the destination port in the TCP header. Both protocols (TCP and IP) mentioned herein, the As ^¬ may tenpakete and otherwise manipulate (at ^¬ several example by segmentation of a large package re smaller generate), but in particular only the principle of TCP / IP header is relevant ,

The protocols RTP (RFC, Real Time Protocol (RTP), IETF), UDP (RFC 768, User Datagram Protocol (UDP), August 1980, http://www.ietf.org/rfc. html), and IP (RFC 791, Internet Protocol (IP), IETF September 1981, http://www.ietf.org/rfc.html). The principle of data transmission is very similar to that described above:

Packet data are generated in the sender, which are first transferred to the RTP protocol in the sender. RTP then precedes the data with the RTP header and forms the RTP packet with the actual data. This is then preceded by the UDP header of the UDP protocol and the UDP packet thus obtained is transmitted by the IP protocol as well as a TCP packet. All control data are then removed again in the receiver in order to receive the packet data and to transfer them to the application using the RTP protocol.

The IP protocol is a very common network layer protocol used in packet data networks, but other protocols can also be used (for example, X.25 (RFC, X.25, IETF). The general term used in UMTS is the so-called Packet data protocol (PDP), the address used to route the packet data, in the example above the IP address, is called PDP address in particular.

If the data transmission system in which the packet data is to be transmitted consists wholly or partly of a mobile radio system, in particular UMTS radio communication system, it is advantageous to use the pairs generated as described above. ketdaten (eg. IP packets) of the various UMTS proto ^¬ kollen for efficient transmission by the mobile radio system ^¬ prepare. In particular, it is appropriate that he reduce ^¬ heblichen share of TCP, RTP, UDP and IP control data in the various headers (320 bits per packet in TCP / IP) data packets.

For this purpose, the packet data of a PDP are first the PDCP protocol (3G TS 25.323, Packet Data Convergence Protocol (PDCP), 3GPP March 2000, http: //www.3gpp.org/ftp/Specs/March_00/25_series/25323-310.zip ) to hand over. This protocol is prior to data transmission from the RRC protocol (3G TS 25.331, Radio Resource Control (RRC), 3GPP March 2000, http: //www.3gpp.org/ftp/Specs/March_00/25_series/25331-

320.zip) has been instantiated and configured. It is now manipulating the

Packet data is expediently such that it can be transmitted efficiently via the UMTS air interface of the respective subscriber device and / or the respective radio control unit of the UMTS radio communication system. For this purpose, compression of the packet control data (header compression) for data reduction and numbering of the data packets for data loss and multiplication detection may be carried out. Depending on how the PDCP protocol was configured, it puts a PDCP header in front of the packet data or not. Together with this header (if available), the packet data prepared by PDCP then form a PDCP packet, which is transferred to the RLC protocol.

The RLC protocol has in particular the task of dividing the PDCP packets, which can have a size between 0 and 1502 octets, into packets, the size of which is preferably adapted to the transmission via the air interface. This can result in a segmentation of the packages or a combination of several packages into a larger package. Depending on the configuration of the RLC protocol, RLC may or may not put an RLC header in front of the resulting RL _C packets. RLC then uses the services of the MAC layer (3G TS 25.321, Medium Access Control (MAC), 3GPP March 2000 http://www.3gpp.org/ftp/ _S pecs / March_00 / 25_series / 25321-

330.zip) to transmit the RLC packets via the air interface.

The protocol architecture of the UMTS air interface of the respective subscriber device and / or the respective Funkkon ^¬ troll unit of the UMTS radio communication system is in particular ^¬ sondere in 3G TS 25.301, UMTS Protocol Architecture, 3GPP March 2000 http: //www.3gpp.org/ftp / Specs / March_00 / 25_series / 25301-340.zip. Basically is called access points, the service ^¬ where the UMTS air interface specifically provides the layers above the packet data protocols (PDPs), their service is available, as radio bearer. This term therefore designates a service that enables the transparent transmission of data from the mobile radio terminal or subscriber device (= user equipment = UE) via one or more base stations (node B) to a mobile radio network unit, in particular a radio control unit (RNC) , Radio Bearer is therefore, in particular, a carrier service for transmitting data over the air interface of the UMTS radio communication system. It is possible to use several radio bearers in one UE, ie subscriber device, for example when two applications want to transmit their data with different service qualities and for this purpose set up two different radio bearers. The structure and configuration of the radio bearer, as well as the configuration of all protocols involved and the negotiation of the configuration parameters of the air interface is preferably carried out by a higher-level protocol such as RRC (3G TS 25.331, Radio Resource Control (RRC), 3GPP March 2000, http: //www.3gpp.org/ftp/Specs/March_00/25_series/25331-320.zip) controlled. In the context of the invention, the functionality of the PDCP layer of UMTS is of particular interest, which is described in detail below.

In the PDCP layer of Paketda ^¬ for each radio bearer to transmit th, advantageously exactly one PDCP proto ^¬ kollinstanz present. When setting up such a radio beamer, a PDCP protocol instance is thus initiated and configured. The possible tasks of such a PDCP instance are, for example:

- Header compression (control data reduction)

- Data packet numbering (to detect packet loss or duplication in certain cases) - Data transmission (the forwarding of any manipulated data from the PDP to the RLC layer for further transfer)

- Corresponding functions in the PDCP receiver side (header decompression, transmission of received data from RLC and the PDP)

For header compression, zero (no compression), one or more different compression methods with corresponding algorithms by one or more appropriately implemented data compression units can be used in a PDCP instance. In the currently valid

The UMTS standard only specifies a possible algorithm for TCP / IP header compression according to RFC 2507 (RFC 2507, IP Header Compression, IETF February 1999, http://www.ietf.org/rfc.html), but it is described in In the future, there will probably be several other compression methods in PDCP (eg also for RTP / UDP / IP header compression). Compression methods for control data reduction work in particular roughly according to the following principle:

PDCP transmitters and receivers create an identical database of stored control data headers or parts thereof at the time of data transmission. This database is start the data transmission (ie immediately after the radio ^beamer and thus the PDCP instance has been set up) empty and is filled with time. Each time the transmitter PDCP receives a data packet ^¬ (for example. IP packet) from a higher layer, the associated data compression unit compares their

Control data header (or parts thereof) with the control data headers stored in the database. If it finds a broad match, it replaces all or part of the control data header with one or more references to the database. The decompression algorithm in the receiver of the respective subscriber device and / or the respective network unit, e.g. radio network controller can then use this link to search for the relevant information in its database and use it to restore the original control data header. Find the tax

/ If the processing unit in the transmitter does not match, it sends a fill header, i.e. an unchanged control data header. Sender and receiver enter this in their database for later use. In order to enable the recipient to recognize the type of control data received, the information is expediently sent along with the data, of what type the control data are. In the principle described here, this would be e.g. the information "fill header" or "reference to database". In PDCP, this information is especially called packet identifier (PID).

Efficient compression algorithms also have a lot more alternatives than just sending a fill header or a reference. With the compression method currently used according to RFC 2507, IP Header Compression,

IETF February 1999, http://www.ietf.org/rfc.html there are in particular the following PIDs:

Fill header, Compressed TCP, Compressed TCP non-delta, Compressed non-TCP, Context state

There are preferably two similar, but different in terms of the PDCP protocol to send the PID: Either the respective data compression unit, as specified in RF _C 2507, IP Header Compression, IETF February 1999, http://www.ietf.org/rfc.html, may replace the control data header with the corresponding data from the database and signal the PDCP protocol which _A rt this data. The PDCP protocol is then responsible for sending this information (ie the PID) to the receiver PDCP protocol so that it can signal the type of control data received to the respective decompression unit. Or the respective Datenkompressionsein- standardized exchanges of information necessary to control data head against the entspre ^¬ sponding data from the database and the signaling of Art. In this case, it is not erforder ^¬ Lich that the PDCP protocol transmits a further signaling to the receiver side, as the respectively assigned

Dekompressoinseinheit can take this information from the transmitted data.

In order to enable the use of both methods in the PDCP protocol, several formats for the PDCP packet data units (PDCP packet data units, PDU () are the packet units that are transferred in the respective transmitter from PDCP to RLC and assigned in the respective one RLC recipients are handed over to PDCP).

A first, advantageous PDCP PDU format contains only the data generated by the respective data compression unit (PDCP-No-Header-PDU). These are entered in the "Data" field (see Table 4 from 3G TS 25.323, Packet Data Convergence Protocol (PDCP), 3GPP March 2000, http: //www.3gpp. Org / ftp / Specs / March_00 / 25_series / 25323- 310.zip). This is shown schematically:

Table 4: PDCP no header PDU

Another advantageous PDCP PDU format also contains information about the PID and a field which differentiates the format of this PDU from other PDU formats (see table 5 from 3G TS 25.323, Packet Data Convergence Protocol (PDCP), 3GPP March 2000, http://www.3gpp.org/ftp/Specs/March 00/25 series / 25323-310.zip, which is shown schematically below).

Table 5: PDCP-Data-PDU format

When setting up or reconfiguring a radio bearer, the RRC protocol negotiates, among other things, whether or not the PDCP instance belonging to this radio bearer adds its own control data to the data field. If not, then PDCP can only send the PDCP format shown in Table 4. If PDCP adds its own control data header to the data, it can advantageously use several alternative PDU formats, each of which can be distinguished in the receiver by the "PDU type" field (always the first 3 bits).

If several different data compression methods are used for a radio bearer in a PDCP, it is in particular the task of the transmitter PDCP protocol to select a suitable data compression method for each data packet from a PDP and to signal the data compression method used to the receiver. This is particularly the case if the PDCP instances have been configured to use the PDU formats with a PDCP control data header. The data compression method used is then advantageously also signaled in the PID field as follows: The PID values that the first of the data compression methods use are assigned to the first PID values. The PID values that the second data compression method uses are continuously assigned to further PID values. The PID value zero is always for signaling an uncompressed packet uses what can also be regarded as a compression, namely as zero compression. Examples are the data compression procedure according to RFC 2507, IP Header Compression ^¬ sion, IETF February 1999, http://www.ietf.org/rfc.html with the above-mentioned PIDs and another data compression procedure (Method A) with the PIDs AI, A2 and awarded A3 for a PDCP in ^¬ substance, then the PID field in this PDCP instance is as follows (coded according to table 1 of 3G TS 25.323, Packet Data Convergence Protocol (PDCP), 3GPP March 2000 http: //www.3gpp .org / ftp / Specs / March_00 / 25_series / 25323-

310. zip)):

Table 1: Example of the PID value allocation table

By reading out the PID value, the PDCP receiver instance can now determine both the data compression method used and the type of coding within a data compression method.

Another function of the PDCP protocol can be the numbering of PDCP PDUs if this has been configured by the RRC protocol. The number then associated with each PDCP PDU is generally not sent with the PDCP PDU via the air interface, but is used for packet loss or packet duplication detection in the case of a so-called SRNS (serving radio network subsystem). In connection with this invention, only the existence of the numbering function is relevant, but not the exact mode of operation. co co r ^» P ¹

Cπ o Cπ o Cπ o Cn er> ö Hi V Ϊ P- ≤ rt o g rt α LA cn P CL rt M P- rr <! CΛ ^ Λ tr rt O tr> H

Φ φ PJ tr ¹ OP Φ Φ P 3 P- ⁾ O φ Φ O P- P- P P- 3 Φ Φ o P ≥; Φ OP ¹ rt CΛ O 3 cn cn 3 P π P ¹ P P- P cn O rt t p- 3 P Φ <i Hl PPP tr P α P? Location ≥l

O P ιQ Φ Φ P P Φ P- rt J er t i ω P- o rr o • 13 σ d

P CΛ ω H cn P P- P- P Φ PO Φ ^ o CΛ rt P ⁾ ≥io «oo rt hd P ¹ N .. o φ

CL Φ rt φ P- U s £ Φ PPP tr o - P- P Φ P> tr tr P- P ⁾ P ¹ P- ^^ hd. -. P

Φ P P- P- PJ Φ rt P ^J P rt IP σ o rt iQ P P- rt O Φ sQ 13 _^^ - co φ

H CL 13 P ro P n φ φ p: P ⁾ P ⁾ rt • n P _^ Φ s: Φ P> Φ P P- P P- - s: ~> QP ω φ HP ^J Φ P tr • p- P - rn _^ - ~ PP d P- o P CL 3 P ⁾ PPP P>

Φ Φ Φ P- N CΛ rt P φ P ^J 0 ⁾ P o P ¹ P P> CL Φ O: uq ro s: o HH

S P-? P- rt P CL Φ N φ φ li HH Cπ CΛ Hi φ T φ NP iQ P- ^ ö P- • Q CΛ o P Φ rt ιQ φ PPPP sQ CL cn 3 ¹ op: ι-i PP Φ rt op: g P o hd de tr P cn P CL Φ Φ O p- CL P tr P CΛ P P- P ⁾ : P tr ι-3 Φ iQ hd K) P>

P- φ s: ιQ Ξ Φ φ s: φ er 3 rt P ⁾ P P- H Φ tr 3 o rt rt Φ CΛ 13 K

P- P- Φ • D Φ li P- Hi Φ CL rt CL n J. OP Φ P) t Φ PP _" > pi: 13 S • Φ h rt Φ ii 3 P- ö P- 3 φ Hi P ö P ⁾ ffi Φ tr Φ vQ <! cn P- d ** • P o tr • ⁾ : O rt

PP CL P cn o PO: P- • Φ cn P- P Ξ rt CL P- P- O rt P ¹ CL ö POP σi

P * ^* φ hd P ^J ιQ NN 3 W P- Φ cn o tr P- T) CL PJ P- P- HPN Cπ tJö

? CD Φ rr Φ • P- P Φ Hi OPP ω O φ P 13 P P- P CL Φ φ P- iQ "Pi iQ P 3 o P- P> 0 P- P- rjd Φ P Φ 13 CL P tr P - O Φ vq J o \. T CL φ P 13 P 13 P o rt o • P rt rt Hi rt d φ Φ φ rt φ rt <g tr Hl o CΛ P-

P Hi P Hi P ^J p rt P- cn CL 3 NP ⁾ P o tr XO α Φ P Φ rt o PO pi: P> Φ φ P- hd φ H3 Φ 13. 13 P- 3 P- rt wo Φ Φ W P> φ P Hi 13 13 o tr rr OP cn X Φ Ω DJ P φ PP "i Φ P- rt • Φ Q φ PPO rt P * ^* rt PJ ^ \» P CΛ

* _* P u 13 rt P- tr w P- Φ Φ n rt rt hd cn • φ CL o ω cn P CΛ Φ>

N φ o • P rt φ P ¹ σ XO φ iQ. α CL ^ ω P Φ 3 n cn P 13 rt cn o PPP φ rt z, P P> Φ tr cn Φ Φ P- PJ CΛ α Φ rt 13 tr P? Φ s: rt

CL iQ φ CL <J CL φ φ rt P φ cn CL Φ rt T) P ⁾ P <1 • PPP rt no φ

Φ cn P P- P ¹ 1 o PJ li pr Φ PSO Φ cn Φ α o cn - "o Φ P- iQ P- cn P ³ p>

P s: φ PP rt CL 3 PP CL φ T 3 Φ PP ⁾ p- PH n rt O \ X)

Φ ö P CL P Φ φ φ ⁾ P φ P P- P 13 rt P <! P ⁾ P cn rt <P

Φ P- P> φ Φ; _ PP lf P CL rt n P Φ rt o P 3 cn p- cn o P> P ⁾ α Q

P- ω rt PP; * r iQ cn <τ) Φ t Φ ≥io PP Hi φ tr O rt PP ¹ P Φ hd

P φ Φ CL o Pl <J φ Φ rt ιQ ü cn rt P CΛ rt <l PH rt tr Φ P Φ H- o 13? Ö

P I_l. P CΛ Φ ι-i PP ⁾ sQ * τ3 • cn O Φ CL Φ P cn ~ _" d rt, tr φ CΛ J φ 13 CL φ rt ι-i Hi pj: P Hi CL Φ d? TP Φ P- Φ Φ O α P>: 1 P -

≥i P- DJ ⁾ s: p P> cn P- rt n • p ⁾ CΛ PHO tr PP "PPP P> Φ hd rt o CL

OPN Φ OP ¹ OP Φ OP ⁾ P ≥ | CL P ¹ P- rt tr cn φ CL tr • o P ⁾ cn

1 Φ P P- cn tr CL P ¹ D> PP α φ tr P P- P »Φ P φ Φ σ CL \ P rt nm rt p- PP cn o rt P ⁾ L Hi Hl PP ö JN> rt Φ o φ Φ Φ P- Φ pd Φ PN CL 3 CL j Φ rt. -. P P- rt tr d Φ P ⁾ rt P J->

P P- P- ιQ P- Φ CL sQ ^ s: φ P> Φ P <τ) P Φ Φ Φ α P> N φ _^ 1 O h- ^> rt <! PP P- Φ Φ P P- li o PP ⁾ φ σ sP, PP TJ P- PPP cn O rt

PPON tr P cn P cn Φ tr P ö P- d <cn cn O 13. s: Φ P o φ 1-5 Φ P φ φ ιQ w OP Φ 3 Hl P> P ---. -. , - Φ <! rt tr s: PJ P- P <! C tr sQ P iQ P- CL ι-i Φ pr PP rt φ πj ≥! P o _^ - ~. P- ^ φ P- Φ P>

P ¹ 3 Φ rt Φ rt Φ 3 o φ ö rt CL Φ P <! ö CΛ Hl P P> Φ Φ P φ Φ P cn φ φ P ω O cn V pj: PP P> PN Φ P φ d P> P ¹ cn P- rt CL n sQ

PPO 13 P P> E rt rt P Φ li 13 S3 P • x) tr CΛ cn P Φ P ⁾ Φ CΛ ι 5 3 ι-i CL P- * τ) CL P CL Φ CL P PJ Φ iQ OP ^ O P - P- P> P cn ro P 12!

_^ - _^ Φ 3 Φ PP ö P- P- O Φ PH? R P Φ O Φ ö P (QP * »O α

^> li Φ n Φ cn O o PP 3 P- 3 Φ rt tr PP n N Φ O P> hd o Φ n

P ⁾ fl): PP ^J rt er rj P> ty Φ 13 rt Φ Φ rt ≤ d • CL tr P ö σi hd rt- • φ Φ φ öd CL Φ ^ P 3 P Hi er P Φ P- CL Φ P > O cπ hd

P- * « _* PP cn hd φ φ P- P P- pj: P- Φ - XP PJ i • PP P- CL hd l P hd o CL OPP ⁾ li PP 13 CL Λ PPP rt CL N Φ CL P H - OP

P- φ Cd P O P tr? P P- ≥i sQ Φ CL P P <CΛ Φ Φ hd r O

≥l P ω 3 CL rt φ J. Φ rt φ α Φ Φ P- P ⁾ P ⁾ tr P o ≥! PPO rt φ cn 13 φ O li Φ P- P- P ⁾ n P P- o ω Ω Φ P- rt P α φ cf O n O r + 1 i li 1 1 1 1 IT) 1 1 tr 1 P- ω N o 1 1 O l

1 φ 3 rt 1 h P ¹

work _C ontroller) may be used. As receiving unit may advises preferably a subscriber unit, in particular Mobilfunkge ^¬, o _r an RNC controller (Radio Network Controller) ver ^¬ turns his.

It is to according to the invention provides a multiplex model pre ^¬ that (important for acceptance in the standardization process) allows with minimal changes to the existing UMTS system, a most efficient multiplexing:

The multiplexing is done in two different ways, depending on what have been configured for koll PDCP PDU formats for the PDCP proto ^¬:

1. Multiplexing with signaling:

In the event that the use of PDCP's own protocol data heads has been configured for the PDCP protocol instance and that different radio bearers do not use the same compression algorithm, the existing PID field is used for the signaling necessary for multiplexing:

Each radio bearer using the PDCP protocol instance is assigned at least one PID value. Such radio projectors for which data compression methods have been configured in PDCP and which require PID signaling by PDCP are already assigned PID values according to methods known in the art.

Radio bearers that do not use compression methods or that have been configured for data compression methods that do not require PID signaling are now always assigned PID values (exactly one per radio bearer) according to the invention.

Since the PDCP protocol is configured such that it precedes each data packet with a control data header that contains the PID field, the information for demultiplexing is thus advantageously contained in each PDCP PDU. The receiving PDCP instance reads out the PID field and uses it to _d erem to determine the right recipient of the data (the correct PDP).

In this multiplexed with signaling the configured compression method found prior to multiplexing to ^¬ application. The compression methods used are un ^¬ differently because only (ie a PDP) identify, the PID values opposite the USAGE ^¬ Deten data compression method and compression type also clearly necessary, a radio bearer reindeer.

This method has the particular advantage that the PDCP protocol instance can clearly assign the data even in compressed form or packets of different PDP types to a radio beamer, although it cannot read the PDP address because it is either compressed or the PDCP Protocol has no knowledge of the PDP type.

A further advantage is in particular that the PID field available in the prior art is used to transport the multiplex information and that additional values from the value range of the PID field are only assigned to those radio bearers that do not exist according to the prior art Use PID.

2. Multiplexing without signaling:

In the event that the use of the PDCP-No-header-PDU (always exclusively) has been configured for the PDCP protocol instance, or that several radio bearers use the same compression procedure, the PDP address will be used to distribute the packets to different radio stations Bearer used.

Since there is no field in the PDCP PDU for data generated by the PDCP protocol, or radio bearers who use the same compression method cannot be clearly identified by the PID field, PDCP preferably relies on the signaling in the PDP's own control data. th. It will be so in the PDCP entity at the transmitter to ^¬ packet data no control data added so that the receiver of the packet data, the PDP address read out and is used for routing to the appropriate radio bearer.

With this method, the type of PDP (eg IP) is known to the PDCP protocol instance. Since this is not signaled, only ^radio bearers from the same PDP can be multiplexed in this method using a PDCP protocol. Furthermore, if header compression is used, all radio bearers expediently use the same compression method, since a distinction between radio bearers can only be made after decompression.

Another condition that is always fulfilled in UMTS is that the radio bearers that are to be multiplexed together have a different PDP address. In UMTS one PDP (ie one PDP address) can use several radio bearers, but these always differ in the quality of service used (QoS); Since multiplexed radio bearers use the same RLC unit, they also use the same QoS. For this reason, radio bearers with the same PDP address are not multiplexed onto the same RLC unit in order to be able to clearly classify their data streams later and assign them to the radio bearers.

This method has the particular advantage that it allows the multiplexing of (theoretically) any number of radio bearers onto a data stream without further signaling via the air interface.

The two methods described above are expediently used individually or together in PDCP, depending on how the PDCP protocol instance was configured:

If the PID field is present in the PDCP PDU, then it is preferably used for multiplexing for such radio bearers, co co M h ¹ P ¹

Cπ o Cπ o Cπ o Cπ

<! P- Ω V rt g CΛ Öd ^ d cn tr tr 3 N CL CL P- CL CL Öd g> * J rt ιQ uff cn P CL N cn cn CL φ POOP ^ Ω CΛ P- rt Φ Φ P- P- P>P> cn P ⁾ P CΛ hd P- Φ Φ P o cn rt Φ Φ Φ Φ H- P-

P cn P ¹ PO π tr _^ «sQ ⁾ N P- rt Φ PP rt PP iQ P Φ P rt PPPPPP Φ tr tr <! ¹ P ¹ P- P rt Φ rt P CL P • CL uQ. <p: PK s: cn Mi O: P ^• •

P φ φ Ω ι * l P P- P- Φ rt φ tr P P>: Φ cn P- CL 3 tr ≤ Φ

P o PJ P Φ O tr OOO P- J 3 Cd P> s P φ P ^J P- P- "3 P ⁾ Φ Φ CL CL Φ cn P-

CL cn P iQ P- rt • P tr S! P cn P ¹ P- P- P ¹ s tr PP ¹ Pi cn o P cn P> Φ P- POP

Φ P Hi Φ P. -. P Φ Ω cn rt P ω ^ P rt Φ P P ö P P φ CL H CL

P CL • P tr g _^ - _^ ö N Φ P tr φ P ¹ P ro N φ cn P- hd CΛ Mi Φ Φ Ω Φ

• »Φ N φ Φ 13 p- Φ öd rr CL CΛ Φ J CL P- Φ P P> Φ H O cn P P> P tr P

P o 13 P- CL tr φ P- P> P- P H- φ P- ≤ P> 3 φ P P- P ⁾ P α O Ω P φ rt

CL Φ tr P rt P- ^ ιQ ω S Φ P>: Φ P P φ C P- P Φ sQ u Ω IP rt O tr ü Ω f p-

P- Φ O P ω g rt P- p- Ω & o <! Φ P- P- rt rt pi tr o h «P> tr O: hd sQ

Φ CL P rt h 3 p- o cn P P- tr P ¹ P- P rt o P- Φ rt P ≤ Φ P> rt P P>

P- O tr ¹ Ω tr CL cn 3 cn P- P Φ φ cn P Φ Φ CL P- P α ιQ Φ <! P CL CL

CL Φ CL l n> P> P- P- rt • rt Ω ιP tf P ≥! P- rt cn P- P φ rt P CL CΛ rt P o φ H- P

P- P- O P- ¹ Ω P ¹ -> φ P> ö tr O: Φ Φ P rt P cn P p 'CL CO cn PP o P

Φ g Φ ¹ ro Ω Hi rt Pf § tr Q tr rt φ Φ rt 3 Φ P P> s: rt "_" Ω o P ¹ o Φ P ¹ P hd P- 3 Hl O: p: hd Φ ^■ *. s: P s: g P hd P - 'P- O Φ P P> öd tr

13 tr h cn P> PPO CΛ tr tr Φ P Φ o Φ ι * JOO: σ cn Ω PO: P CL φ tr P- P hd _^ ~. cn><fo P Ml Φ Φ CΛ Φ cn P φ P tr 3 hd _^ o tr CL 3 CL H- P> CL

<< P ö Φ cn rt O CΛ PPP rt? P Ω P P- Φ 1 CL rt σ Φ Φ φ Φ P P> cn Hi fr ¹ O P> OP rt OP rt Φ CΛ P cn tr> CL Φ CΛ PP φ cn

P- P <! hd CL O - - - P> Ϊ P sQ PJ P Φ P ≥! Φ n rt Φ <Pi ö CL P ⁾ P <l O 3 φ P ⁾ P f P φ P> P- P rt O CL Φ P _^ P- 13 φ rt o Φ φ P CΛ PPON ⁾ -— _^ P- PP ¹ hd

P> fV P co o rt hd P- P CL P 13 rt N P P s: P P O φ P P P O <! rt cn CL Pf

H cn tr o P tr ¹ OP ¹ V CL P> p- Φ ON <rt P- tr? 0i> cn P tr ιQ! Λ O φ ö

P- rt P- tr "OP> P cn ≥! Φ PPP ≤ Φ P ≥! Φ P- PO cn s: rt PJ <l P cn JP. - P- P" o Ω n P CL cn s: rt Φ PO φ CL P Φ _" « • Φ P NP NP • φ CL f ro

Ω rt CL hd P ~ - ^ o g tr tr Φ P tr rt Φ CL rt P P φ CL CΛ P P- ro P tr P- P PJ IV ~> -> hd P- <cn P> Φ P- 3? P- Φ N P P N σ CL P Φ co ι * J cn o P-

Φ O P Ω Ω o p- cn rt O Φ P P ≤ p P CΛ P> P co P- Ω P Φ CL

P iQ fV o ω CL s: tr P P cn O φ CL P- CL Φ sQ P- co P CL? D O iQ tr öd ro H-

CΛ Φ oo P- Φ rt CL PP Φ PP. -. PP Cπ iQ P> P ⁾ . P p- φ PN

Ω g rt

3 P s: Φ P- Φ f Q CL ^ P II W p: o Φ cn s: • P Φ P>? T CL P tr hd rt P- cn PP J- P ⁾ φ 1 tr Φ sQ V Φ tr % s: P- Φ CL P o Φ

P- ü P φ N rt rt Φ rt P Φ Φ P- ≥; P- φ Φ Φ go P- CO Φ ro P P- o 3 P- P ⁾ OP CL Φ Φ φ cn N rt so PP 3 3 σ PPPP 13 rt CL tr p- cn rt H CL SQ CL P- P os : rt φ - - - tr P- ω CL öd Φ PP P- Φ rt rt rt P> ~ - 'P- P ⁾ P- φ Φ Ω P ⁾ tJ- P H- Q ^ Φ φ rt φ co ro rt φ CL P φ iQ P

Φ P Φ cn cn tr • <Cr. Φ Ω hd t tr P- P- P- σι rt P- P> P- H- uq cn Φ rt hd CL OP ιQ Φ cn Ω rt tr ϊö Φ rt P Φ P o 13 P φ P «ro cn P- t → ro pi OP ^ cn 13 P Φ PQ tr NP CΛ <! N φ H- φ - - •. _^ ro fo P P- hd Mi

P ¹ P cn P CL P fr tr • P hd cn <i Φ ^• »φ Φ ^ P • <! Φ P hd ro ä PO Pf P-

J- <! P o *; co PV rt Φ <-f P P- O ^f * Φ g iQ X ö 13 rt P α N o öd P Φ CL P cn CΛ Φ P • ^ Q tr Ω • ^ φ P o P- O ffi PN cn P - J Φ PP><i rt p- Cd CL P tr Φ P- tr cn tr • P Φ hd pj: φ rt <S! φ tr cn P- Q cn φ P P- P- CΛ P- ö 3 PP P- rd P- sQ P 1 P ¹ cn Φ Φ P

Φ P- Φ POJP Φ P ≥; P P- P>: CL Φ 3 P P> P ^J ^ d ιQ ≥! Mi cn s: PP φ

P- cn P P hd tr P- tr 13 φ CL φ & o Φ rt Φ cn Pi P- N * o rt P- ro Mi rt P

P cn Φ OP> P- P- φ S 13 rt P cn rt «cd rt P- P ιQ s: Φ 1 Φ OPJ Φ tr rt tr φ P Φ cn P- o ONP φ cd § N cn PP Φ P- tr P CL tr cn

P> PJ 3 φ CL P- Ω rt tr P s: uq ^ CL <P3 <! cn? P Ω Ω Φ cn ro P N P-

P ^J rt Φ hd rt PP tr Φ P- rt Φ; * r P3 Φ Φ CΛ Φ rt cn? T tr P> ö <i P Φ PP rt P- PP CL P tr Φ PP ¹ PS o CΛ PPP P> rt co ^ Φ P ⁾ φ PQ CL

Φ O ιQ OP ⁾ sQ Φ Wed ≥! ? g tr CΛ tr rt PJ P ⁾ : P Φ rt P φ • • rt P Φ rt rt cn P- g P o Φ ^ CΛ! Λ P rt P- P- rt PEP Φ Mi cn P $,

P O Φ fV rt hd P CL P- co P rt ≥! P P> P O P- Φ P- «1 P P> o P p- σ

P tu pj: 1 PO ^• »w Φ PPJO CL P 1 PO Ω 1 o hd 1 tr P rt Φ D>

P CΛ * «« 1 P 1 1 p- P Φ 1 P tr 3 ü 1 1 1 1 cn

1 1 IP 1 1

co co ro ro P ¹ P ¹

Cπ o Cπ o Cπ o Cπ tr CL CL <! cn CL Φ rt Cd ^f * J for S. fr ^ s; hd Hl P CL ≥is; CL P rt σ t ^"1 tr PJ cn CL tr tr rt p: rt P ⁾⁾ φ Φ φ P- o φ P o P- Φ P- P- P> Φ ro ro Φ P- P- P P- P - <! P- P Ω P- Φ PP tr rt P cn PP cn P for P- PP φ rt sQ φ for PP rt φ Φ rt o Φ ro P CL tr o P- PO φ

13 CL Pi tr o 3 fr rt CL P Φ Λ N Φ P ro CL φ P- rt CL P

_" • CL <l J ö φ φ NP cn P> PN rt P> O PL <l N ^h d PN o PP Ω Φ

\ O o tr P> P P- P ¹ > Φ o P- rt • φ P tr P- Φ. P g PP tr P- s P Φ CL TPP rt cn rr ro PP ¹ Φ Φ co öd Ω P- φ P öd P P- hd P iQ Φ rt P 53 P- H- s: p N Φ Φ rt Mi P ¹ P • CL tr Ω tr. fr tr p: P Φ P fr n P- P Φ s j3 PPP Φ hd P- tr Φ φ tr fr N φ tr hd P- <P <! tr CL P rt hd P ¹ cn tr z Φ sQ cn POP P> P- ro o ro s P CL rt ⁾ P öd Φ O φ cn U Ω cn rt ro hd

• P cn P- rt P CL P P- P P- μ3 φ P- for CL CΛ PPP tr ¹ 13 noo • P- Φ

P- rt s: PP PJ <3 CL Φ tr cn <l vP OP φ s; Φ P tr p- N rt <! p- P hd P rt cn φ - Φ OP ⁾ O ro Φ cn φ 13 φ rt P> ro rt P p: P- φ PP ro P Φ P »rt ü rt rt P- ro 3 PP P- P- P - P Cπ <l <1 P- φ iQ tr P vQ iQ P ⁾ co cn Ω ^ 1 P Φ P- hd P

Mi cn P- cn P- N P g rt ro sQ P O Φ o rt φ P- Φ cn iQ o tr tr o O P- φ n Φ

• f φ P o P g φ O ¹ Φ P _^ PP ro s: 2 PPP s; φ • φ Φ HP cn rt o hd Φ α sQ o cn tr ^ cn PP cn P P- z rt P CL Φ P cn PP φ φ N

P CL P CΛ Dd cn tr P- ns: NP ⁾ Ω CL ιQ φ ^ P sQ φ P- CL O CL P ⁾ P- sQ K Φ o Φ s: P- Pi ro 1 tr tr ¹ tr ro ro CL P ¹ J cn φ P φ Ω Pi d Φ P φ

\ φ 3 σ o P ⁾ P ⁾ Hi CL P- Φ O P- P "5 φ sQ CΛ φ P CL P tr P ¹ PP ω P

P PJ P> o P P- Hi CL P Φ cn P P- Φ Φ P PJ Φ% O Φ o P rt tr tr

Pi CL P- rt Φ cn P P- PP ro P cn σi h tr PPP tr <J α P hd P ¹ fr tr ro P-

Ω Φ P ro tr P Φ P o fr CL 13 o Φ P Φ 3 P> p- O P> Φ P ö σs <! P>: cn P

• PP φ cn fr n öd P- P- PPP CL P Ω P rt O no φ O CL tr ⁾ r P- P- cn Dd Φ P ⁾ 3 ι * J φ Φ fr <P- α tr φ P rt hd P rt PP rt o ^| * J o cn PJ CL rt φ P cn P hd fr s: o φ P- CL rt P o O 1 cn tr CL P

3 o π 13 W φ P ⁾ P> pj: P- g P trö hd o Φ P ro P- ro 13 s fr O P- P- φ uq

P ¹ M 13 P- ω P rt P rr cn o fr ⁾ n PPP h cn Φ s: PJ so hd s: P tr P

13 ro P φ o rt P- Φ cn cn tr <! Pi hd O rt CL ro P ro φ fr PP P- CL P Φ tr P Cπ φ o P- OP rt P- φ rt P> rt P Φ P- P J- P- J. ro PO φ P Φ θ ¹

Φ φ o cn cn cn P Cn <P ⁾ P ¹ P ^ OOPP fr ι <3 Φ rt ro rt P- φ rt PPP cn cn ~ j cn s: ≤ Ω O rt Hl tr CL o fr P ¹ • Φ? ^ P- £ Φ s: ro fT PO φ uq cn P> P ¹

Ω cn p- Φ P- tr gs: P P- P P- P- • o P o tr Φ P Φ P> P- ω Φ CL tr p- - O P- P hd Φ tr OPP φ ro P rt P - sQ P- s: rt iQ OP for P- P- 3

POPP cn CL for P P> P for α P ¹ P- P CΛ rt P ¹ Φ P ¹ Φ P- P- φ o rt o p-

P- P Φ cn φ o P CL P sQ P PJ φ P Pi Ω P CL cn sQ cn P o tr P ¹ P cn rt

PP Λ Φ Hi PP ro CL Öd ro PP tr tr O H- Φ CL P rt. hd rt P tr P P- φ p: Pi CL P φ Λ P vQ φ tr ro sQ p- P ¹ φ N tr tr Φ cn P> P Φ φ CL

Φ Pf Φ P P- P P- P P>: cn P- N P- Ω P ro O: P i φ tsi fr o P- rt Φ

P Cd ω t P sQ P- CL CL rt fr P, rt ro tr φ hd iQ P tr J cn s: Φ P ¹ P s: P

Φ Pl rt Φ CL PP P- cn φ o P ⁾ P- rt P- ⁾ Φ Φ P- P P- rt P ¹ Φ o

P ι * J P- α P- P φ P- P g PP ^h d Ω P for OPPP pj: Pu cn φ P

Pi rt ⁾ Φ P- CL P hd rt CL hd n tr P ⁾ tr Φ PP Φ ⁾ Ω P ⁾ rsi ^• ^ P i hd O rt ro ro PJ CL> P φ P ro P Φ rt CL CL P Φ tr tr rt PP o φ PO Φ α PP t → PPOPPN P- Φ P Φ ro Φ φ P- υq o frä tr>PP> rt π Pi P P- υq for PS CL rt Φ cn CΛ P tr ¹ P- PPPP » o <l

13 P Ω lt ± f rt • h Φ CL P rt Φ P- p: rt Ω Ω <fr cn P P φ

PPOO o φ PPP 13 Φ P- <! P- ro hd tr φ tr tr g ro H υq o tr υq rt P φ P> jE) OMP Cd PP rt P- PP o φ cn o Φ P ¹ P- ooo P ¹ P φ cn P tr cn PV 13 ro for CL tr PONPP φ PP öd P- O tr o sQ Φ <! cn fr O P- cn ro <P P> P- fr J rt φ cn cn pj: s: P ⁾ Φ tr P- • _^ P- P- φ OOP

P- P ¹ P Φ Φ fr 3 o hd CL OP ro Φ CL Ω φ CL cn EP rt P ¹ ω Ω PPP ¹ CL

O sΩ rt P cn Φ P α rt ro for CL P- PP tr P- P- P- Pi tr ¹ Ω tr uq CL rt Φ P

P <£) cn s: cn rt> rt o cn P o φ P CL P 01 rt φ cn P- P ⁾ P <1 tr Φ Φ Φ PPP cn sΩ _" » Φ P- Φ PP hd l P ¹ P tr Φ Ω rt Φ cn Ω PP ro ro PPPO ^ sQ

<! PO Pi o ^h P ¹ ro P tr P hd rt tr fr P »N φ P- cn φ CΛ CL P CL tr hd P φ hd P- CL P- tr ro P> CL cn o <1 <i fr

P rt Φ cn Φ PJ P ¹ PP - P> rt Φ P ⁾ O: cn rt p: p- rt • φ φ P Φ ro o

1 year! cn P 1 O for 1 Φ P P tr P- rt P- tr Φ PJ P P- J H- P P

P _" » 1 i 1 P 1 ro P 1 O φ 1 1 P 1 P 1 1 1 1 PP 1 I

driving corresponds. According to RFC 2507, the data link ^¬ provides layer, in this case the PDCP protocol 130 in front ^¬ some manner that may in particular be made between the following packet types: Filling header, Compressed TCP, Compressed TCP nondelta, Com ^¬ pressed non TCP, Context state, Uncompressed TCP / IP, Com ^¬ pressed TCP / IP

The table 3G from 3G TS 25.323, Packet Data Convergence Protocol (PDCP), 3GPP March is therefore expediently

2000, http://www.3gpp.org/ftp/Specs/March_00/25_series/25323-310.zip shown PDCP-Data-PDU packet data type used. The PID values 1 to 7 (1 = fill header, 2 = compressed TCP,, 7 = compressed TCP / IP) are assigned to the packet types of the data streams DS300 of the radio bearer RB300 as individualizing identifiers. Furthermore, it is advantageously established for this radio bearer RB300 that it should use the RLC access point (SAP = Service Access Point) SAP500, which is shown as an ellipse in FIG. 3 and represents the access to the RLC unit RLC600 (RLC = radio link control).

Viewed in the data flow direction from the radio bearer RS300 to the RLC unit RLC600, starting from the radio bearer RB300, the data packets of its data stream DS300 are first subjected to a specifically assigned data compression process in the subsequent data compression unit CA400. At the same time or subsequently, a specific identification is carried out in a subsequent identification unit KE400 for this compressed data stream DS400 *. Only then is the data stream DS400 * individualized in this way fed to a downstream multiplexer unit MUP1. With their help, the compressed and labeled data stream of the radio bearer RB300 together with the data packets of other data streams from other radio bearers such as RB310, RB320, RB330 are multiplexed and transmitted to the RLC unit RLC600. co CO ro ro P ¹

Cπ O cπ o Cπ O Cπ

CL EP ö! Λ rt <! g CL Hl φ h ≤ Cd ≤ φ tr fr α cn P cn 13 CL rt tr α

Φ Φ PJ öd Φ φ φ P- P ⁾ P- öd φ P- P- P- Φ O Φ Ω o Φ POP Φ Φ

P P rt co P P P O tr P co P P Φ P P- 3 P tr s cn Φ Ω O P P

CL Φ to cn s: rt P tr P ¹ CL cn rt 13 P P- p ω tr H Hi σ P o rt φ Cd Φ Φ o Φ CL Φ tr P o Ω Φ U cn P> N

P ⁾ z for PP <φ P P- rt PP Φ Pi Φ Ω tr P P> P- 3 CL z rt P- o J. O: CL Φ PJ rt CL P- cn Cd cn tr rt _^ «rt O p- P> ro φ P 3 Φ 3 φ PP CL P> Φ rt rt>t-> cn Φ P rt rt cn P-

P CL 13 S. ro rt υq φ ro o cn tr rt P- P ¹ P- s: N CL P cn Φ rt cn P Φ • φ PP> Φ Φ 3 o O P- PP> cn Φ Φ P PL φ rt Hi φ p- α tr cn ü PP y PPP EP rt P- P- Φ

P p: cn P ¹ CΛ g φ ö P ¹ cυ Mi rt CL cn CL PPPP ho P ω cn CO P- P h P ⁾ o rt P ⁾ φ ro Φ fr O tr Φ Φ P ⁾

3 P- P> rt "_" % Cd rt Φ P- P> P 3 P- PP Φ 3 φ 3 P ⁾ CL

CL o 3 O co φ cn PHPP P> rt P- cn P- tr ¹ P- ü Φ P P- P ⁾ cn ro PO fr cn cn hd ö tr Ω Φ P rt ö σ O o

CΛ P cn rt PPO o fr t, O Ω Pf J Φ tr P Φ α P ⁾ P>

J-> Φ P CL P o P- 3 z tr α rt P- cn Λ O rt rt Λ Cd

P- CL CL φ CL r 3 φ 13 P- P "ro rt CL Ω CΛ co> Φ Φ> ro

OJP Φ P φ φ 13 P φ P- s, P Φ tr P- P ¹ J- ^ PP hd P>

P tr 3 ö φ P P P CL Φ φ Φ cn n 3 Φ iQ o fr 13 cπ P cn Φ cn CΛ P P φ ro Φ cn CL EP P rt> P- P O o Pi o ro

P- P- φ CO P- cn P cn Φ Φ rt P &> α CL P ⁾ z 3 fr o P

P CL rt ro S! CL rt cn P- PPOP ⁾ P P- P- CL 13 φ • φ tr oo φ cn P- h O CL Z 3 O rt P P- PPP rt PJ φ PO φ PPO tr ¹ P ö P- φ iQ cn CL P φ Φ α öd

P- P CL rt n Φ PO cn P>P> Φ P ⁾ 3 P P- Ω cn P- o

P p *. φ φ φ X cn <! rt PP P- fr CL φ tr tr cn cn Φ ro o P ^» α PP P- Φ CΛ Φ Φ Mi N cn rt o φ P P- uq p- Φ

P 3 o P> σ cn P- P P υq • 3 P P ro φ O P- °

13 rt tr Φ rt P hd Hl ω Φ Cd CL K 13 P P Pi P P o <! ^

P P tr Φ φ φ H- tr cπ P> rt tr • φ P- P ö ι <q: cn Φ M Φ

P> φ Φ P P- P- s: ro Φ o tr P P> PP ¹ φ P ⁾ P- tr <cn 13 P

Ω cn P> for CL EP P- P P- o POP 00 Mi cn rt CL 3 P Φ PZ tr cn P o φ rt φ rt rt • Φ 3 rt i iQ cn Φ P rt P ü P- φ ιQ P- Hi 3 PP Φ P- o ro P- PP α> • Hl P ⁾ 3 P

Φ O cn 13 CL Hi α σ PP 3 O 13 Ω PP ⁾ rt P- CL o P Ω PP PJ p: z, Λ P ⁾ CL CΛ 13 Φ P P> tr cn hd tr Φ ro φ

P cn tr Φ P> ω P p- j- «φ co h Φ P P- cn for Hi p: P P P rt

CL Φ P ¹ cn CL • _^ PP ¹ CL PP ¹ P ⁾ p- Φ P <Φ CL p: P φ cn P

P P- P> cn P- CL o P> o CL P cn φ Φ rt P- tr P rt P N

Φ P iQ P- o CL φ cn α P- CL cn P P Φ φ P CL P sΩ, Z rt tr rt O P> P fr tr J CL O φ P- Hl P P- P- O Φ

Φ φ P tr EP ro Φ Pi rt φ P O Pi PJ P hd P Φ P 3 CL Ω

P P- z cn φ α P- P- O φ cn öd rt P Φ tr o P ιQ cn φ fr rt Φ <P> CL PJ P 3 3 P Φ P- cn P P rt P cn ü Φ P

P4 P Φ P P- rt 13 for P P> iQ Φ P Φ Z> s- tr P> P- α pj:

Φ π CL P φ Φ Φ X> P o P> P Φ P- N P Φ <φ rt P Λ hd EP

P> Φ Mi P P Φ P φ 3 CL φ P P φ P φ P- Φ φ co P P-

P. £> PP ⁾ tr cn P- Hi cn 13 P- P ro P- Φ CL P cn PPP ¹ o sQ

NP ¹ tr PJ Φ rt rt tr cn P o S! tr Ω P- P- tr 13 13 o rt Φ φ o P öd P- P Φ P ⁾ p- Φ h Φ ro tr P q P- P- P> α OP

P- jjd Φ co CL O P P O cn tr Cd P- P- P φ P Φ for P> Z for p z

Ω fT PP ¹ Φ 3 Φ P cn Φ o cn rt PP P- CL P ¹ Φ rt P- O φ tr o cn o PP CL cn P- P> ro Φ P cn P rt Φ P P- P-

P s Ω p- ö Φ <O P o p υq α rt P P> Φ P L μ- tn

P tr PP ö CΛ hd cn Φ P Φ N> Φ P ⁾ • iQ P fr fr Φ

P φ PJ co Pf P cn P <i P ^ P- rt cn ιQ CL o c_ι. o ιQ P P- CL CL 1 P ¹ α hd 1 1 cn φ uq P> P φ 1 ro P- 3 φ P ro cn 1 ro Φ o pι P φ o Φ P 1 φ 1 1 1 1

1 1 P 1 1 1 1 1 1

co co ro ro h- ¹ P> cπ o Cπ o Cπ O Cπ hd co p- Pd α ro fr 13 d tr hd cn <! HP P> 13 <<3 3 CL O σ cn hd cn PL Hl> Z rt n <σ P ^> rt hd PJ pi Cπ o P> P P- P Ω O 3 φ PP φ Φ φ P- ro PJ P- Pf P- φ p: P Φ P> ooo rt ü tr cn o p- fr P o tr PP Φ PP p- rt P cn rt P td φ P tr Hi P- O 3 hd • 13 n Φ ^ 1 P ¹ Hi for Hi rt P Pi CL cn P- ZP • <! Φ CL 1 Φ P cn P ¹

N • • hd P ¹ fr rt fT PO P- CL O i φ cn P> Φ Φ Φ P »S! 3 P rt PL φ P ¹ o hd hd P- \ o 3 Z φ o P φ φ P "o P P- PP P> P- σ PN Φ p- P- Φ Pf

P 13 \ - <φ 3 P- φ P fr o tr P υq 3 o q CL P P ro Ml P Z P rt i Φ P- P- <! ü

OZ 13 rt P- p: rt cn P ¹ Φ Φ 13 CJ. P rt Φ cn Φ P P> Hi φ rt o CL cn PL P φ 1 rt CL z co cπ P rt tr P rt P g PP φ cn rt iQ P tr PP ro 3 P- φ φ tr P

O P> z O P- K Φ φ O ⁾ φ • o CL P- Z <O Φ Φ PP tr PL P- P- 13 Φ P φ cn 2! fr P hd PJ 3 P- PPP ¹ rt tr Φ 3 Φ Φ CL P- P- Φ P φ PPPS! rt P- Ω ro o uq o hd P P- uq P- P ^> σ P- P P- P- P Φ σ PP Ω PP PL φ Φ 3 φ p- rt tr P

P- Φ uq cn φ Ml ro CL Φ O ro JP "ro Hl PP ⁾ p: <tr P> P- 3 cn P- P- cn cn p- rt

P ¹ cn 13 g P Φ uq φ P- P o Mi Mi ZP P- P> rt Ω P- rt ZP cn <! cn rt cn Ω cn φ rt 13 i: co rt ro PP p: P P- P υq tr P Φ fT CL ¹ p- P- P- «P- φ tr Φ PL cn Φ • PO ro PL tr tr OPPPP φ P P- P rt P o P Φ φ PL Φ OP P- Φ ro ro P ¹ o ^' N Φ ro φ Φ CL P ^{1 for} CL ιQ P Φ Ω for P> 3 P- PPPPZ cn rt PP rt P P3 hd PPP P- φ co cn cn P tr oz 13 P φ P> P cn rt ro rt Φ

N rt uq ro CΛ pi cn rt P o rt rt P ⁾ α rt 3 P- P- P Φ P- N <Φ PP ⁾ p- J rt Φ "\ o fr rt Φ P ⁾ PPP ⁾ P 13 P cn P - P> P P- φ φ P α rt Hl tn P

P Hl o ro ro o z Φ cn P- rt P rt P P CL P- 3 tr h φ cn P- P cn Φ rt P- rt PL

CL rt o cπ rt 3 φ PP ⁾ OP P- CL φ rt tr φ φ P- Φ P ¹ 3 P- Ω Ml Ω P • P • ro

P> hd 13 -> • 13 P P P r rt O P- ro P Φ Φ cn P> P Φ P- O φ tr PJ tr CL P

P ö \ co ö P CL h • cn CL P 3 P cn P P- cn P ¹ Φ P 1 PP Φ tr p- PL Φ> ro

PO CΛ ro Λ φ φ PJ rt φ hd rt s: P- cn P rt P> Cd P> rt PP φ Φ rt PP hd 13 co cn P CL 23 P- P P- g φ g P o α O o CL Φ P p- Ω _" « Φ PL 3 Hl

CL 1 φ o cn P- φ uq uq hd P- POP P> P Φ Ω P tr z PP ¹ PL α

PJ σ Ω o P- CL o P Φ c_ι. PP - "3 Mi rt cn PP σ tr tr Mi PL P- P- g P> g P> cn P> cn hd * O P- CL P φ PP ⁾ N rt Φ Φ <PP ⁾ Φ o φ tr Ω P tr o rt rt \ P> P Φ öd φ z P Φ P- ro

<PP φ P> Pi rt Φ P- P "tr Φ tr Φ tr Φ hd P ⁾ g Ω Z cn ro P o

3 φ co 13 Φ cn P tr Φ Φ p- rt uq • N P> Φ rt P- P- P

H 1 P ^{) for} P- φ hd ⁾ Φ P- CL PMP z rt Mi tr PPP Φ • PP P- fr ö hd P Φ P P- P> P <l rt P "N P- φ φ υq φ PJ pj : P cn φ PPP Cd Mi • * «13 PL Hl o ö Ω rt CL P fr ro o Z P- P φ PX Φ PO: tr PN rt P CL P • cn P ¹ P- P d tr tr Φ PP Φ uq P Φ tr CL 3 P iQ φ P ≥l rt φ rt Ω φ ro PM 13 φ 1 σ P- φ rt P φ fjj: hd CL P Φ φ φ Φ P- P- OP Φ P Φ φ tr • X for P

P "hd o JP P- fr h tr fr P Ω P P- PPPP sQ Ω 3 P ¹ PP P- P ¹ tr φ rsi cn P-

CL P ⁾ o rt rt o öd O: Φ tr P φ g ~ « _^ ^ tr P ¹ Z g cn P PJ • PP rt 3 fr \ P> CL P co tr P- CΛ cn fr φ CL PZ 1 o P Ω φ sQ s: P ⁾ P-

N φ ro P> p rt o Φ P Φ rt fr hd hd tr cn CL p- PJ P p- P tr 3 rt <s Φ rt Φ

• rt π o cn> P o P Φ P o P> P ¹ Φ rt P- P <i PP Pi Pi rt Φ od P- P- P

Cd ω 1 o O Φ tr CL CL P fr <! ro Φ φ o iQ CL O φ P- P- P ω P hd cn O P

• cn P ^h d ^ P "P ⁾ P Φ Φ P- rt Φ p: O rt PP 3 P 13 P P- Φ P ¹ PPP φ φ <ro o P" P P- Φ φ P rt tr P cn sQ "« »<L CL 13 • tr rt P P- P cn uq

P ⁾ P- P φ o CL CΛ rt P- o CL φ Φ hd ro JP ro PJ Φ PL P ö uq 1 ω

PP P- P CL P> C Ω * • P h P ⁾ P CL Φ 3 PI o P tr φ XPPP ⁾ P> φ

Mi uq φ uq fr rt i tr tr P ¹ P ¹ rt υq P- P- P- α tr cn Φ cn P <cn P rt NP P-

Φ cn φ: o Φ n P- P- Φ O Φ Φ φ φ P cn 1 φ P- cn rt φ υq Ω Cd CL Φ Z P P

Φ Mi \ P Cd 3 P Ω P P- P- P tr cn Ω Pi CL tr P- Φ P φ tr P Φ P Φ PL tr

P- p: ro o P ⁾ 13 hd tr cn rt PP p: Φ φ i tr Φ P> Φ Φ OP Mi 3 Φ cn P cn Ω Φ

P «q cπ ro rt P uq α rt tr P tr tr PP φ rt P cn P tr PP ⁾ PJ P- rt rt fr P- φ rt co P> P- Φ π φ Φ φ CL ro Φ P Φ P Φ p tr Ω p. <P 3 P rt

P • ro hd 3 3 3 hd P cn P- P- P z PPPN J. P <lo P tr r P φ O: P>: P Φ o P P- P>: OP hd rt rt P- P> N φ ro> Pi Φ 3 Φ rt PJ P> P 3 EP for P

S! σ 1 o CL Φ EP hd σ P φ α PP Ω φ pi P- z PJ P 13 PP Ω cn Φ P- ^ φ P> rt Φ PP PJ P o hd P> CL tr P- o Ω φ P ¹ cn PZ Φ tr Ω sΩ, o O

P cn o ω rt ho rt Φ hd n uq Ω 3 tr P- iQ P ¹ rt Φ N o PL tr N Φ P> rt Ω ^h rt Φ P g P cn tr 1 P ro cn P ⁾ cn PP Φ P- PP 1 o P- n OP Φ o tr P Φ P Φ P- 1 P cn P PL 3 φ u 1 o ¹ P 1 1 1 Φ uq P- φ P ιQ 1 p- φ 1 φ o

1 1 P 1 P 1 * _*

was inserted between 1 to 7 depending on the type of compressed ket Pa ^¬ in the field "Data". Characterized is provided in ^¬ dividualisierende marking the compressed data stream DS400 *. This is because reasonable indicated in Figure 3 that, according to the compression unit 400 and CA before the multiplexer MUP1 labeling unit KE400 a ^¬ is joined. These awards * which is forwarded from the compression unit CA400 for multiplexing MUP1 to the data packets said compressor ^¬ th data stream DS400, each individual characteristics such as a PID code value. If a data packet from higher layers is forwarded to the PDCP protocol via the second or third radio bearer RB310, RB320, PDCP sets the PID field to the same value 8, for example. To attach this individualizing identifier to the data packets of the data stream DS410 * coming from the compression unit CA410 to be able, the compression unit CA410 is immediately followed by the identification unit KE410. Only then is this marked data stream DS410 * also supplied to the multiplexer unit MUP1. The marking unit CA410 is therefore arranged between the compression unit CA400 and the multiplexer unit MUP1. If the packet reaches PDCP via the fourth Radio Bearer RB330, the PID field is set to 9, for example. This individualizing identification is expediently carried out with the aid of the specially assigned identification unit KE330. Only then is this individualized data stream DS330 * fed to the common multiplexer unit MUP1. This sends the data packets of the data stream DS330 * via the RLC access point SAP500 to the RLC unit RLC600, which processes the packet and finally forwards it to the access control protocol MAC under RLC via a so-called logical channel LOC700. MAC in turn forwards the packet to the physical layer and finally the packet is sent over the radio link FV to the base station BS, which forwards the data packet to the radio control unit FC. CO co ro ro P ¹ h ^-1 cπ o Cπ o Cπ o Cπ

co co ro ro P ¹ P ¹

Cπ o cπ o Cπ o cπ

P- uq

P

P co

P-

P hd σ o hd

<!

O

P

N

P uq cn

Z φ p- cn φ

& ω φ

CΛ

P- uq

P

P ⁾

P ¹

P- cn

P-

Φ

P

P

P uq p-

P

PL φ

P hd σ hd

co co ro ro '

Cπ o Cπ σ Cπ o Cπ

w * -

co co ro ro P ¹ P ¹

Cπ o cπ o Cπ o Cπ

3 P CJ. tr cn g uq X ≥; cn, - 13 φ α X Φ p Z rt rt g cn P hd Φ fr uq> p- P ö P- Φ Φ P- P ö P Φ ö Φ P P- ö P P- Pi CΛ Φ P- P- ro ro P Ω Φ P P- ro Φ P ¹

PP ω uq Z P> OP ¹ CΛ PPP ¹ CΛ P Ω P Λ fr P Cd CO PP tt> PPP tr POP rt 3 ¹

PL uq co Φ PP rr CO fr Ω Ω CO tr PL co Φ φ CO Φ φ PL fr cn rt p- rt Φ Φ pi: uq φ cn Mi. P- P- Pi cn P- 4-> fr Φ σι J - »φ o rt P oo P- O o Ω P- Φ CΛ OP EP Φ cn ro o P cn Φ 13 O o P ¹ o P- Φ o φ o - - P P- - N 3 tr 13 PL Φ fr N Φ 3 rt P- • _^ cn Ω P- ** «s 13 o P P- _" Cd tr P s: Ό p- P ¹ Φ P o P 3 P Φ

Φ P PL tr P ro s P ^ - Φ P φ 3 3 ro PL P P- P ro Φ P PL P ¹ uq Φ P-

P tr Cd P- 3 P ¹ tr X ö POCP φ Cd P- 13 i P- P- P- P cn ro PL X φ ro ro tr <! P cn ro CΛ φ P- P> φ Φ CΛ P et P- CΛ 3 CΛ P Pi Cd rt rt <l PL Ω cn P ¹ Φ P Φ cn o P Φ

P- co P uq P- P CO P- O P CO <O PL P rt P- tr cn P- P P- P Φ P P

Φ rt Cπ g PL rt rt Φ cπ fr Ω P cπ P- NP ¹ ro PP ¹ ro _^ - _^ PL PL Φ p- Ω σ P _* ~ _^ PL M Mi P

P- o P φ • P- o P O φ σ Φ s: o P uq o s P ro P O tr 3 P tr 13 P Φ P cn

P - - cn. - P rt P ¹ P Φ "> rt cn ^• ^ ω cd Φ PP ro p- rt Φ P φ P tr uq

Φ Pi rt rt α p tr P- ^^ tr N P- P- Φ d PL cn P rt Φ P- Ω rt P φ

P Cd C P- Φ J Φ α o P ö P rt Cd uq P- i ro P ¹ g Φ φ rt P rt fr Φ ö Φ PL co CΛ 13 P tr>t-> P- CΛ P 3 P ¹ CΛ tr ro CΛ P Cd P- - - ro PP P- σ Φ cn φ PPP

Cd co P ^> cn Φ ro rt co cn p- tr CO \ - ^> P CO tr co P ¹ PP P- rt Φ rt 55 rt:

3 o σϊ φ P- o cn ^■ <P cn ro ro Φ co Φ φ Pi rt J. tr rt cn P p- Φ Φ N Ω

13 * «o X Φ - o cn PL PL <φ o P P- o P P- Φ P- Φ ro Φ O: P α rt P p fr

Ml ^• - - Φ H- zg rr ro Φ o P>% rt - PP 13 z P- P ro 3 φ PN cn 3 rt

P> i PP p- 3 Φ cn cn P Mi PNP ¹ P! - ^■ φ rt for P- φ cn rt Z rt

P Cd 3 Φ Φ P P- hd P 3 rt P P- α P <0 PN ro P- ro o PP Φ P g Z uq co P- P- PL et ro P cn Φ hd P α P CΛ cn φ o uq P φ X ¹ P 3 Φ _^ - _^ cd HO: P P- cn cπ rt P P- - - - Ω P α Mi P co 13 cn P Φ Hi P- ro P- 13 P α § Ω fr 3 P ¹ P

Φ o rt tr P <l PL tr Z cn Ω et P O P uq o Φ Ω P uq. P CΛ Pd O Φ Φ rt PL

P- Φ ro PL o Φ P- φ hd Φ Φ P O p: hd Φ P P tr ro φ Ω ro g CO CΛ P P- P-

PH "P- P- P 3 P p- P Φ 1 P- P uq - - - P α P CL PL P P- P cn PO 1 <! P. -. 13 P tr i cn rt <cn tr PL p - hd P 13 cn uq Ω OP φ PP (C- cn O φ tr σ

Φ Cd P- CL φ φ P φ cn ro

P P φ P uq CL hd g φ P P tr α o P- rt P P Φ CΛ Φ

P- co Φ - Φ P φ o ^ φ Φ P- 1 rt uq ro P o uq P- CO X O cπ

PL φ} - • P- o P- P rt σϊ P- g 0 P er P 3 P et N φ 3 P Ω Φ Φ ö P- rt ^ P 13 ö fr φ rt o φ o P φ Φ φ PL OP et p: tr PPPP PL rt φ cn CΛ fr P o P tr

PL - Φ hd P ¹ g PP g P- CΛ fr uq Φ EP CΛ o rt φ P Ω <! Φ CO o Ω. - Φ ro P ro P "PP φ φ o Φ P Φ Φ ro rt Pi Φ cn. -. Fr ro XP ¹ 3 Φ d φ P- cn <1 - - φ α uq POPP P- O cn φ P go> t * P Φ O 3 tr ¹ Cd P- o N rt P Φ rt <! PL P ¹ P 3 PL P for OP cn ι_ι. 3 Pi P • _^ P 13 Ω CΛ P φ hd PP or t P- rt 3 P- φ φ cn PL φ <ro uq o P rt Φ hd 13 OP φ PP σι o Φ P- α uq uq P- φ 13 φ Φ 13 P φ P tr Φ ro Φ PL INI PZP ¹ P - tr P- α P- O o PP

Ω φ Φ PPP P- P ¹ cn P-. -. Φ PP P- cn P ¹ P φ O φ - φ PP CΛ fr rt o O φ hd POP Φ f P Φ Ω P 13 rt ro Mi P 13 cn E P- 3 P- cn tr ro er CO PO - - < 3

1 o PPNX o cn X tr tr P Φ PP tr Φ Ω cn P ¹ CJ. cn ro P Φ ro rt Ω P- hd 3 PL P φ Φ 3 P Φ P- Φ Ω ro tr ro P- Φ PL tr P- ro P- P P- o P- O P- ö φ φ

P 3 P Pi P- P 13 3 P φ P- for SS PP p- cn 3 P- P - uq Z o P <! rt " _^ o ¹ P co P

O φ Φ φ Ω Φ P φ PL rt φ Φ ro rt rt 13 Φ P ö Φ P Pi ro PP co N cn rt P rt P tr P- Φ P 3 φ et rt α P Φ Pi P CΛ P- p- cn cn P _^ ~. ö cn ro ro P rt

O Φ PL PP cn p- P Φ NPNPP P- uq JPP ¹ ro Ω cn g CΛ "<3 P o tr Φ fr P Φ P tr cn ö rt φ P- CL

P- = s et N P P P cn O cn P- tr Ω CO cn P- tr H P o cn P P Φ P rt P P P Φ Φ P o Cd uq φ O PL P tr hd CO rt P P

P ¹ oi uq P- O rt Φ Φ rt PP 3 PP φ 3 P- X- p- 3 tr P P- P> O Φ PL ö <! Φ

P- φ ü rt P Φ Cd cn P fr cn PL rt P P- P * φ P- φ uq Φ - - - * ~ * 3 φ tr COP cn PL PP> PL cn P cn P Φ rt g Φ Φ φ P tr P P- rt PL cn cn CO P Mi

P> P rt Φ _^ <! fr rt cd Ω P- P 0 PPP PL φ ö g PL rt • φ 3 rt PL CO P-

CD EP N Φ cn g φ o Φ Φ g OPO: ¹ tr cn φ P- CΛ P φ P P- o PL Φ ro o α P

M φ PP 3 P- P Pd P tr 3 rt P rt α cn rt J ^ P "cn _* -. Ö ro rt P P- P cn - - P

13 CL P- cn J. hd Mi 13 P cn CΛ <i Φ Φ P- PPP rt P ¹ rt rr Ω PP φ cn rt 0

Pi P- Ω rr Φ ro P P Φ rt 1 Φ P- 13 O: rt Φ O P- Φ> tr P P- hd P φ P

PJ φ tr P s: ^• - * tr φ PPP rt 3 φ P * 13 P * => ro ö P tr <Φ α P J2 uq

P 1 OP cn O: 1 φ Φ P cn • _^ cn o P- P 1 P ro P- Ω Pi 13 Φ 1 P- 3 P- 1 P 1 ro o I Φ P 1 hd P cn

P cn I 3 IP Φ 1 3 1 1 1 1

Data packets can be clearly assigned to the data streams (DS340, DS350, DS360) originally fed into the transmission unit. The individualized identification of the respective data stream in front of the multiplexer unit can already be predefined by its PDP field.

A subscriber device, in particular a mobile radio device (MP), or an RNC controller (radio network controller) can preferably be used as the transmitting unit. A subscriber device, in particular a mobile radio device (MP), or an RNC controller (radio network controller) can likewise preferably be used as the receiving unit. A radio control unit (FC), in particular an RLC unit (radio link control), is preferably selected as the network unit.

Claims

claims

1. A method for multiplexing a plurality of data packets of multiple data streams (DS300, DS310, DS320, DS330) to an associated network unit (RLC600) within the PDCP protocol (Packet Data Convergence Protocol) at least ei ^¬ ner transmitting unit of a UMTS radio communication system, wherein the Different data streams (DS300, DS310, DS320, DS330) are loaded with different data compression methods of different data compression units (CA400, CA410) before they are multiplexed by means of a multiplexer unit (MUPl), and whereby between the respective data compression unit (CA400, CA410) and the multiplexer unit (MUPl) in each case at least one individual identification of the data stream (DS400 *, DS410 *, DS330) entering the multiplexer unit (MUPl) is carried out by means of an assigned identification unit (KE400, KE410, KE330), so that the in at least one receiving unit of the PDCP- Data packets received in the protocol clearly data streams (DS300, DS310, DS320, DS330) originally fed in can be assigned to the transmitting unit.

2. The method of claim 1, d a d u r c h g e k e n n z e i c h n e t that a subscriber device, in particular mobile radio device (MP), or an RNC controller (Radio Network Controller) is used as the transmitting unit.

3. The method according to any one of the preceding claims, characterized in that a subscriber device, in particular mobile radio device (MP), or an RNC controller (radio network controller) is used as the receiving unit.

4. _V experience according to one of the preceding claims, characterized in that a radio control unit (FC), in particular RLC unit (radio link control), is used as the network unit.

5. Method for multiplexing a multiplicity of data packets from several data streams (DS340, DS350, DS360) onto an assigned network unit (RLCβ10) within the PDCP protocol

(Packet Data Convergence Protocol) at least one Sendeein ^¬ integral of a UMTS radio communication system, wherein the various Datenströ e (DS340, DS350, DS360) is applied after its multiplexing by a multiplexer (MUP2) into a common data compression unit (CA420) with the same data compression method and, in front of the multiplexer unit (MUP2), at least one individual identification of the data stream (DS340, DS350, DS360) entering the multiplexer unit (MUP2) by means of an assigned identification unit (KE340, KE350,

KE360) is carried out so that the data packets received in at least one receiving unit of the PDCP protocol can be clearly assigned to the originally fed-in data streams (DS340, DS350, DS360) of the transmitting unit.

6. UMTS radio communication system in which the exchange of data streams between its subscriber devices, in particular mobile radio devices (MP), and network units, in particular radio control units (FC), is carried out according to one of the preceding claims.