WO2001013663A1

WO2001013663A1 - Method for establishing a signaling connection

Info

Publication number: WO2001013663A1
Application number: PCT/DE2000/002688
Authority: WO
Inventors: Egon Schulz
Original assignee: Siemens Aktiengesellschaft
Priority date: 1999-08-17
Filing date: 2000-08-10
Publication date: 2001-02-22
Also published as: EP1205087A1; DE19938895C1

Abstract

According to the inventive method, a signaling connection between a base station (BS) and a subscriber station (MS) of a radio communication system is established by transmitting in a first signaling channel (RACH) a signaling information (si) regarding a channel request from the subscriber station to the base station. The base station evaluates the received signaling information and transmits at least one identification information (ii) with respect to the address of a subscriber station to the subscriber station in a second signaling channel (AGCH). The identification information is subdivided into several segments that are sequentially evaluated by the subscriber station. Evaluation is terminated if a segment is found that is addressed to a different subscriber station.

Description

description

Method for establishing a signaling connection

The invention relates to a method for establishing a signaling connection between a base station and a subscriber station of a radio communication system.

In radio communication systems, messages (voice, image information or other data) are transmitted via transmission channels with the aid of electromagnetic waves (radio interface). The transmission takes place both in the downlink (downlink) from the base station to the subscriber station and in the uplink direction (uplink) from the subscriber station to the base station.

It is known from DE 198 10 285.2 that known methods, which can also be combined with one another, are used to differentiate the signal sources and thus to evaluate the signals as frequency division multiplexing (FDMA), time slot multiplexing (TDMA) or code division multiplexing (CDMA). A variant of the time division multiplex (TDMA) is the TDD (time division duplex) transmission method, in which the transmission is carried out in a common frequency band both upwards, i.e. from the base station to the subscriber station, and also in the downward direction from the subscriber station to the base station.

Starting from the well-known GSM mobile radio system (Global System for Mobile Communication), in J. Biala, "Mobile radio and intelligent networks", Vieweg Verlag, 1995, in particular

Page 78 discloses that a subscriber station uses a special signaling channel R CH (Random Access Channel) to request a transmission channel from a base station when establishing a connection. In order to prevent blocking when multiple subscriber stations access this signaling channel at the same time,

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2 CΛ CL - 0 0 'er 3 p P rt rt CL P P- O rt Φ P- Φ Φ O Φ φ

P- | _3 P- α Φ ISI _^ Φ SP Φ P • P- Hi φ 0 Φ • P- H P- H 0 er 0 0

CΛ 1 0 Φ 0 d 0 CL rt 0 cn φ rt tf _^ »P ^y - ^> a CΛ rt d CL

P- X Hl P rt Hl CL • P- N P- rt Φ u σ d CΛ t Φ N 0 φ Φ α CΛ

Φ OO P- P P- d Φ PO cn Φ P- s 0 ^J 0 CL rt P Φ V φ ^ P P- d P-

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P Hi t CΛ> Φ P cn d: P rt rt • - CΛ φ P- 3 P- CΛ 0 'P ^y Q cn rt P- N d 0 CL er P er & PP Hl Φ Hi Φ O: z 3

CΛ rt P- 0 0 P cn 0 Φ Φ Φ t 0 Φ N g σ 0 0: _l Q 0: X l- (^ P φ tsι 3 P-

Σ P 0 α CL "Z to ia P P P & N 0 P CT P- P P p P 0 d P- ≥! Φ Φ CΛ

P rt 0 d φ φ d cn Φ P d 0- Φ Φ Φ g 0 P- rt P P- 0 ^J P-

0 P- 0 P il Hi? rt CΛ α 0 0 ^{^} rt * P 0 Φ ü- ιQ n Φ rt P φ

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P- 0 er P- rt 0 0 - Pi CL 0 Φ P- Hi 0 Φ Φ P d P 0 ¹ φ 0 ia CΛ φ Φ 0 ^ a cn CΛ P ^ P- Φ P CΛ O d Φ rt n CL Φ ^ Q

Φ n P- 0 'N P Φ 0 Φ X- P rt P rt Hl P NQ P- n Φ H P- P- P ω

0 tr 0 ι-3 P- 0 P d _l O p: 0 P CΛ Pl 3 N Φ PO "P Φ 0 rt dd 0 0 Φ φ P 0" 0 3 0 rt 3 O Φ α P Φ P- CΛ 0 0 φ P- tr N Hl P rt Pi P P- P n \ -> 0 "Φ Φ ιQ P- P- P- P rt 0 P- P- 03 n 0 P ¹ Φ Φ 0

NOP ^J er 0 ^J 0 P 1 rt P- P ¹ er P- 0 ιP φ α ö 0 Φ CΛ P- P rt H rt Φ 3 rt O: rt rt 1 Φ O φ 0 Φ Φ P- 0 P "1 Φ P- P- tP 1 Φ P- 0 0- PP 0- 1 1 rt rt Φ 1 1 1 1

is terminated at the earliest point in time in the statistical average of all subscriber stations.

The segments for addressing different subscribers are advantageously sent in succession in a time slot. Within a time slot, for example, several pieces of identification information, which i.a. Contain information about characteristics of the first signaling channel from different received subscriber stations, sent together. In the following time slots, information about the midamble, time slots, etc. is sent.

The segments of the identification information are, for example, from the parameters, i.e. the information about spreading code, midamble, subchannel, etc. and from segments of the signaling information. It is thus possible to restructure the sequence of the segments sent on the basis of the parameters of the first signaling channel.

The subscriber station particularly advantageously temporarily switches off the power supply to the receiving device if, for example, the information about the spreading code is not addressed to the subscriber station, so that subsequent time slots only serve to address other subscriber stations. As a result, the power consumption for the reception and evaluation of entire time slots can be saved.

In an advantageous embodiment of the invention, when the evaluation is terminated, the energy supply to the evaluation device is temporarily switched off. The quiescent current of the evaluation device is thus switched off, which further reduces the power consumption of the subscriber station.

Parameters of the first signaling channel, for example the CDMA code, the midamble (training sequence), the time of transmission of the subchannel, etc., are particularly advantageous ω MM P>

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Show

1 shows a block diagram of a radio communication system, in particular a mobile radio system,

2 shows a schematic representation of the frame structure of the

3 shows a schematic representation of the embedding of bursts of a signaling channel in a time slot,

4 shows a schematic illustration of the chronological order of the segments of the identification information, FIG. 5 shows a schematic illustration of the chronological order of segments of different identification information, and

6 shows a signaling diagram for establishing a signaling connection.

The radio communication system shown in FIG. 1 and designed as an example as a mobile radio system consists of a multiplicity of mobile switching centers MSC which are networked with one another or which provide access to a fixed network PSTN. Furthermore, these mobile switching centers MSC are each connected to at least one device for allocating radio-technical resources RNC. Each of these devices RNC in turn enables a connection to at least one base station BS. This base station BS is a radio station that establishes and signals communication connections to mobile or stationary subscriber stations MS within a radio coverage area C via a radio interface. The functionality of this structure is used by the method according to the invention. Use in, for example, a wireless subscriber line system (access network) is also possible.

In FIG 1, two signaling connections VI, V2 are exemplary for a request to establish a connection _Ü transfer of user data and signaling information si between two subscriber stations MS and MSX and a base station BS ^¬ shown.

Signaling information si, for example the reason for the connection, is sent from the transmitting device MSE of the subscriber station MS to the receiving device BEE of the base station BS via a first signaling channel RÄCH (Random Access Channel).

To avoid blocking the first signaling channel RÄCH, the subscriber stations MS, MSX use the first signaling channel R CH in random multiple access (according to the principle of the slotted aloha method). If, alternatively, many first signaling channels RÄCH are available, for example through the use of spreading codes sk, different training sequences tseq and several time slots ts (see FIG. 2), other access methods are conceivable since blocking the first signaling channel RÄCH is less likely.

If several subscriber stations MS and MSX transmit simultaneously on the same first signaling channel RÄCH, only the significantly stronger received signal is evaluated by the base station BS. If several first signaling channels RÄCH are available, the base station BS evaluates the clearly strongest received signals of all first signaling channels RÄCH in which a signal was received.

To assign a transmission channel or a specific signaling channel for the further connection establishment procedure, a transmitting device BSE of the base station BS sends identification information ii in a second signaling channel AGCH for addressing to a receiving device MEE of the subscriber station MS, whose first signaling channel RÄCH has been evaluated by the base station BS.

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0 rt Pi Hi P Φ w P- Φ • rt ^ P? Φ P Φ tn er P Φ rt CΛ na Φ P "

P P- N Φ Φ 1 P- P φ 0 o Ό rt P P- N er P P- Φ 0 ι-3 Φ Ω cn P CΛ n

O Φ P P- t *. N 0 P CL s 0 d 0 rt z P Φ Λ na Φ 0 P Φ P- 0 '<i 0'

P- 0 P- 0 0 o rt p: P ^J φ φ 0 rt P Φ φ p- P- Ω φ P- φ H P- Φ Φ φ P cn rt rt Φ CL P ¹ P- rt PPPP P- φ xr CΛ 0 CL Φ 0- P- H er P- 0

P- öd d »Φ Φ Ω" _* P φ rt cn rt rt Φ P- φ Φ Φ o P 0 P Hi Φ 0 0 φ CΛ 0 ι-3 CΛ cn 0- φ P d Φ Φ Φ 0 Φ 0 cn P P- P "Φ HL & PP Φ

P rt CL Φ O to Φ cn 0 rt 0 to H CL α φ P- ff rt P "rt o P ¹ d P Φ P P- CΛ öd 0 O öd 3 P Öd CΛ H cn CΛ P ¹ Φ IS) ^ 0 CΛ p PHP 1

0 P- H tP P ^J P er P Ω Φ rt d P- rt Φ PH cn P- Φ Φ Φ P φ TJ na φ cn 0 P cn CΛ P- Φ cn P "PP P- Φ er Ω • P- cn rt Φ fl P- P- 0 na P o cn Ω P Φ d Ö> P- Φ cn P- p- P- φ Φ d P ^J p 0 ¹ rt Φ H CΛ 0 cn do? -3 3 'P - ff 0 0 0 rt P cn φ PP rt 0 ι-3 P Φ ö ω ω Φ rt na rt P 0 3

P φ P- φ p P Φ CL P φ cn na N Φ Φ 0 0 P- Ω T3 0 P Φ • d na Φ P-

0 P- Φ φ 3 φ φ rt φ Öd φ N ff P- p: φ "PP rt CΛ P cn 0 ¹ 0

PP CΛ PP Ό 3 N P- ω P 0 Φ P φ g P ¹ P ¹ ι-3 P- PP o P- Φ ü Ω P? P na

0 Φ Ω cn P- Hl P- Φ 0 d rt na cn p- φ 0 φ Φ CΛ P- P P L o rt P 0- P φ

Φ 0 'rt φ P rt P- φ er P- cn P- rt rt N Φ P- d rt na Φ 0 N cn 0 öd ff N zd P 0 rt oo 0 Φ CΛ ff to er N φ P ¹ P φ rt Φ P φ φ

O 3 d rt rt CΛ ιQ Φ Ό CΛ P 0 Z 0 0 Φ rt p Cd 0 P? Φ cn Φ 0 _^ <J P- H o Φ N P- Φ cn P- d Φ 0 Φ 1 P φ Φ P cn rt P ¹ P Φ 0 P ffi PPNO 0 cn 0 0 Ό p: Öd P- P P3 na rt P z ff 0 Φ g S g P Φ na er φ

"> cn o Φ 0 P Φ Φ v P P- ¹ Λ rt φ Φ tf P- cn φ pp: rt N CΛ P Hl 0 φ Φ 0 rt 3 P- φ p- P rt H Φ cn P- O rt n Φ P "cn d P _^ P 3 P

P P Ό rt 2 N rt φ P- 0 <φ 0 P CL P φ o rt d «0 'P- P rt φ

P rt φ CΛ Φ P- Tl Φ t P- Φ N 0 p- rt φ CΛ er Hi 2 o P 0 tP P P- tP P- 0 na P- na Φ rt H öd Ω tf Z Φ 2 P- 0 rt to P Φ CΛ g φ PP 0

O cn TJ <rt P- P d 0 ¹ cn Φ ff 0 ^J CΛ OP Cd Φ Z rt φ X g 0 P- P na φ

0 0 P- O Ό P 0 0 3 rt Φ P- gp: X 0 N rt cn φ P P- d <Φ d P d Φ φ N 0 d p- cn d na p- rt rt φ P ¹ φ P - ∑: n Φ 0 3 0 α P- 3 0

P 0 H d 0 φ rt 0 rt d: N Φ H rt φ 2 P- O Φ Φ P p- φ P- P- Φ CL na

Φ P P? P P P er rt 0 cn • P- CΛ rt 0 1-1 P φ er P rt cn d n CΛ o

Φ S 0 f φ rt CΛ d Φ rt 0 φ P cn 0 Φ P Φ α! V g

P- CΛ ^> - d P Φ d P? rt P ¹ φ P ω PO φ CL P- 0 φ rt 0 X d rt n 2 PR

0 P er rt 3 Φ 3 P- P d rt Φ Φ Ω 0 Φ N o 0 P- 0 ^{^} py 0 d

C- P- N d rt d P- P P er P- P CΛ 0 0 'S 0 z g rt o P Φ 1 p: 0

CΛ er 0 P P P P 3 0 na na tP P? O Φ CΛ er Φ p Φ 0 0 0 Pi P- d Φ Pi P- cn 0 O: - Φ P 0 öd 0 CΛ na Φ CΛ P- d P CΛ 0 φ φ er P?

P o cn P- o p:. -. na P φ P P 0 φ P d φ O P- P- 0 CΛ <i Φ n P- P

^ P rt CΛ P π d P- 0 P- PS na φ er rt P cn ιQ CΛ P- Ω Φ t- ¹ ö N rt

P P 3 cn Φ Φ o P- Hl Ω P φ CΛ p- Ό Pϊ P φ T3 0 d P ^ 0 "ri 1 2 0 d P-

3 Φ P- d rt P 2 Ω na 0 ^* cn 0 PP Φ P P- P er P P- er * x) Φ na O

P φ 3 P t P ^ - P Φ Φ er N d 0 0 φ P ¹ py- rt Φ P- o P 1 ff Φ 0

H rt rt öd 1 • d 0 3 Φ to C CΛ P 0 2 P- P P- 0 o X p Ξ CΛ

P rt P P- 3 t 0 Ό P- Öd PP Φ P ¹ rt CΛ cn cn 0 o P o φ P- <to P ^J P- 0 POOPO PI φ _^ XZ p- p: 0 P- d P- PP φ Φ öd P ^J P φ 0 CΛ d P P- ö P Φ N CΛ cn to Φ φ cn Ω 0 0 Φ cn CΛ n na P- Φ H φ φ P. 2 0 0 P Φ Cd CΛ ^y Q P- H Φ <py α 0- na ιP Φ Φ er p- Φ φ CΛ öd Ό Ω ^• ~ "φ tQ g 0 φ • O Φ cn d Φ Φ Φ cn cn Ό 0 P-

3 3 P- CΛ P 0 'σ P 1 φ CΛ CL P 0 "CΛ CΛ φ 0 to H 0 0 X- P 0

3 φ öd na P na P «0 d CΛ Φ CΛ • Φ P φ na Cd φ P- er Z P P

P 0 CΛ P- P φ rt d o er φ N rt 0 P 0 <cn P- - Z d

P 0 cn P o φ P- 1 Φ 0 P z? 0 Φ Φ Φ P tP σ N p- d P

P o P? P- 0 P d n 0 φ o 0

0 ^J Φ P- P "zn φ 0 rt Φ φ PP P- 0 P- φ Φ 0 P 0 CL rt P 1 1 er na

P 0 cn 1 φ er Φ P 0 φ rt 0 rt _* z rt 0 0 d φ

1 P- he Φ

PPP cn 1 p: 1 1 Φ ^ p: • P Φ 0 0 N P-. it rt P φ 1 f P ¹ 0 'P- na 1

P Φ 1 z Φ

of a time slot tsO to tsl4 with a correspondingly long protection time gp may be sent.

If very short first signaling information si, for example only the reason for the connection and a short training sequence tseq, are sent from the subscriber station MS to the base station BS, it is possible to send further subchannels RB within a time slot ts. Consequently, further transmission times ta, tm are advantageous in this case.

4 shows the chronological order of successive segments sfl to sf4 of identification information ii. The first segment sfl is the CDMA code sk, the second segment sf2 the time of transmission ta of the subchannel RB, the third segment sf3 the time slot ts and the fourth segment sf the midamble i.

5 shows a rearranged sequence of the segments sfl and sf2 of different identification information iil and ii2. The CDMA codes sk of the identification information iil and ii2 are first transmitted with the first two segments sfl. Subsequently, for example in the next time slot, the middle messages with the identification information iil and ii2 are transmitted with the following segments sf2.

FIG. 6 shows a signaling diagram for an exemplary embodiment of the method according to the invention. In this case, a connection setup attempt is carried out by a subscriber station MS based on the radio communication system of FIG. 1. In step 1, the subscriber station MS listens to a general signaling channel BCCH, in which general information is periodically transmitted via the radio communication system. The general signaling channel BCCH is sent in parallel by all base stations BS. In step 2, the subscriber station MS initiates a connection to the base station BS, the signal

cn CL 0 d: to> Pl rt P Öd S na cn CΛ ^y Q o tsi 0 CΛ Φ CΛ CΛ P- Φ rt <cn ^y Q Φ ^ Pi P ^J

Ω P- φ er d cn Φ p- P- P P- P- P- P- PP d Φ P- P- P- P- 3 cn p- Φ o Ω Φ P ¹ dp: P- φ 3 Φ P π P- o φ cn H er na 0 φ Pi 3 iQ 0 ^y Q na rt 3 P 0 0 3 P "0 CΛ

P * P φ ffi 0 P- P rt CL 0 N H P 0 φ 0 0 CΛ Φ cn 0: na P-

P- C rt 3 • 0 CΛ öd cn P- P • P ¹ cn PPP Ω Ω P P- tP er <rt φ rt & er H Φ P- P cn P- HP "φ P ^ H CΛ P ^J 0- d 0 Φ rt Φ Φ • P

N na Φ P φ ff 0 cn rt 3 φ P- o 0 cn d P- P- P- P- P 0 Φ 0 rt P Hl P d

Φ P P ιQ 0 g Pi P- P P? cn φ rt N 0 cn na CΛ cn P- rt P- cn Φ P- cn ö d cn er rt Φ rt Φ o cn rt CΛ rt P- 0 Pi PP P- 0 P- p- rt Φ Cd rt P 0 o P- well

Φ P 0 0 ^* PP cn P- Ω Φ? p: 0- φ P Φ φ rt H & P Φ α P φ cn rt P Φ P CΛ 3 rt O 0 ^J Φ P er P "P ^J P. PPP cn P CΛ P ¹ P- Φ ιQ CΛ p cn L na 0 P ^J rt PP 0 P P- d P Φ d P- dd C) Ω P P- 0 rt d Φ P

Φ d rt P rt rt P- 0 0 P rt Z H 0 cn 0 0 0 "py" CΛ Φ • 0 CΛ 0

NP 0 Φ rt p- P- Öd rt Φ na P- na P- na ιQ cn P- Φ cn P ^y QP d na 0 0 P- OO CΛ rt cn P- Hi H <cn φ cn Cn Φ φ P- rt he Φ σ Cn P- ι £! o cn Hi o 0 0 rt P Φ P Φ er CΛ φ o ϊ o P 0 φ J-. SP? cn d: P Φ P- i P? <! 0 CL

P rt H H 0 d P Φ P rt P- P Φ rt öd z 2 P P P- p- öd P N 0 P er Hl 0 0 ü Φ P- CL P- cn ^ P n

P- py 0 3 φ 2 p- CΛ Hi α PPP Φ 0 P- O ^y QP er rt Ω φ o Ό Pt P Φ P- o φ 1 PP CΛ O P- 0- d P- 0- 0 P cn r - ^> P- 0 ^* P 0 P- cn P- P- 0 w cn * rt P- N P- P- φ P "Ω 0 PP 3 p- 0 P Φ φ φ Ω φ o • P- 3 P- d 3 ^y Q s 0- Φ 0 d P 0 5 P P- <0 ¹ N> na 0 "P cn

0 P o 0 PH CΛ P _^ P 0 rt Pl d φ Pl Φ cn φ Φ P- φ ö 0 N CΛ Φ P- φ n ιQ ιQ P- on 0 HH öd ZP 3 n H φ ω P- Φ z Φ > Ω P- na H ffi P Φ POM ffi LQ P3 P cn ω φ P Φ

P φ 0 φ P- P 0- Ω 0 P 0 φ d 0 3 Φ P- Ω P- P p- cn to cn 3

P- P- 0 P H 0 'P er 3 tP d = cn 0 P N P- 0 0- n_ι CΛ na 0 P- Φ p- φ

_^ tc Φ rt φ φ P- Φ P- na P cn rt er d P "P- P- φ Φ Φ φ Ω ιQ rt er P- Φ 3 cn rt φ P- 0 rt P Φ ^► * _ P- P - NP 0 0 φ cn cn 0 'Φ

P Φ 0 0 cn rt 3 CΛ O: p- 0 d Φ os φ ιQ P φ P- rt CΛ P ¹ CL

0 CL φ N P- O P- rt P φ 0 P- er 0 öd ff cn φ 0 0 Φ P- P Φ cn Φ rt CΛ z Φ C Hi φ P- Φ y ¹ 0 Φ P p cn 0 CL - > na P- CL P

Ω P 1-1 LSI P- φ P P P na P P3 na 1 Φ cn CΛ φ cn φ φ Φ φ P P "0 Φ P-

0 "P d na P- d 3 0 d rt Φ H P rt P- P- p- H Λ 0 rt φ rt P φ na

P ^J * i na Z 0 rt 0 P- na 0 Φ CΛ P- o φ φ 0 cn ω d 3 Φ P ¹ P3 P

P- P d Φ P Φ na 0 Φ na 0 P- tP H tsi 0 "N φ cn rt Φ Cd Z 0 P- φ öd O: φ φ 0 P- 0 CL 0 CΛ ιQ 0 Φ d rt d 3 rt P 0 P Φ φ cn P- P tP tP Λ na cn P- P Φ P- O 0 φ Φ Hl PP rt N CΛ PP CΛ P- CΛ rt φ d cn d CΛ CΛ 0 cn d 0 er P ff 0- P er CΛ rt P- P- P CΛ rt φ 0 P- Φ

0 φ t 0 P- P- rt 0 Hl Φ P ^J P & H Φ * d P- O rt ω φ rt PP Φ cn 0

P 0 P ιQ Φ na CL Φ CL O P H- Φ N CΛ P- P er O 0 cn cn 0 Φ d d ff cn

N 0 H 0 P- 0 H rt cn H P P cn cn 0? 0 Φ rt 0 0 p rt W

P- p: d P φ cn P 3 P P- cn 0 "d N Ό P P 2 Λ P rt na φ P

3 d P * o 0 P- d P P Φ rt Pi P P- 0 Öd CΛ rt z tsi d cn P rt Ό

0 φ 0 na P- φ Φ cn rt na H P ^ r 0 'φ P P CΛ cn P- o φ P pr CΛ P- Hl

CΛ α CΛ CΛ 0 P- na P- dd rt <o P ^J 0 N p- O er P- P rt o P

Ω z 3 P? P- rt 0 Φ O 0 0 P- o g • cn Hl P- P Ω 0 Φ rt P 0 P 0 0

0 'L φ P- P φ cn φ z 0 na na O 0 p Z 0 to 0 p 0 "Φ P- CΛ φ P rt ^y Q

P Φ P 0 0 P i φ cn cn 0 Φ ö φ t-! öd Φ 0 Ω P P- Öd cn

P- cn P CL P d P n CΛ P? P- CΛ d P- P- P Φ> P φ 0 ^* o CΛ CΛ rt φ Φ P ^J 0 φ P rt P- P 0 S d CΛ Φ cn Φ P P- d na öd P- P ¹ ^ öd 0 • rt rt tsi 0 cn ^ Q Ω φ Φ 0 Pi CΛ er Φ H d 0 Pi φ CΛ 0 P- dop: φ rt> CΛ 0 '0 rt <p: o? <tr ¹ d cn φ er cn φ rt 0 n S H- H σ. P- CL Φ cn P? φ rt _^ o P ^J H P- PP p: P 0 3 P rt PN ffi CΛ 0 ^ rt d 0 π P 0 P- 0 φ 3 0 0 H 0 d na ^ d Φ d ci 1 φ

<1 P cn ffi 0 CL Hl cn P p: P- iQ cn • Pt Φ H 0 rt Pt P P

O Ω P φ P- Φ P P rt P P- Φ Q H Φ P "Ω 1 CΛ P Pt Φ φ

0 0 ^* Φ P? 0 φ 0 P- Φ Φ Φ Φ σ cn P- rt tr o 0 er P 3

P- P CL 1-1 1 o 3 PP P- P- CΛJ rt 0 0 C φ 1 1 Φ 0 t rt φ 1 Φ Φ Φ 1 0 1 rt öd H 0 P

z cn ¹ rt na CΛ Φ 3 S CΛ PP ►-3 CΛ PP Pi 3 Cd σ 3 Ό 0 P. ffi CΛ CΛ Pi cn P o P CL φ Pi dp: P- 0 Φ P- φ Φ P- Φ φ Φ Φ d Φ 0: O: CΛ P- P- d P 0 P- P- P- Φ Ό P- P- d Φ

PM cn ΪP OP na 0 0 'P Φ rt P P- (Q 0 P 0' ιQ φ 0 Pi φ na ιP P- P- φ φ 0 P rt Z rt 0 P "3 φ PPPP ^J p ^y QP P- t CΛ o P 0 0 φ na

Φ er φ P- φ Φ φ dz 0 Φ cn PI d P- 0 MP rt PNPP 0 CΛ PI Pl rt P- P 2 CΛ 0 PP 0 0 φ P Φ 0 Pt 0 Ω P P- cn 3 d P ¹ Φ cn P- P <φ cn rt P- CΛ P- rt 0 φ iQ P φ ff rt P Pi na 0- CΛ φ φ rt P- P P- P-

S Z na φ φ P-

Z d Φ φ P 0 d CΛ P 0 p Φ 0 o Λ Φ Φ 0 P "• rt φ cn CΛ Φ 0 0 h P ^J

Φ CΛ 0 P- P CΛ φ 0 <! φ rt φ P P er IQ rt ^ P- 0 P- P- φ P- P rt Z 0

P Pi na P3 - d Hl P ι-3 rt φ 0 P- P cn 3 Φ CΛ g P- PPZ o rt φ Φ H cn P ¹ P- φ φ

P CΛJ φ P 0 P ^» φ Φ Φ P Hi cn H _l CΛ P P- Φ φ Hi φ Φ P- 0 e HH cn φ P- Hi 0 φ P P- ^y Q P- P er P- rt P» rt cn ig 0 P- Λ cn φ Φ p: dd rt CΛ P- P

0 φ P ¹ CΛ CΛ P CΛ CΛ P- cn Pt P P-

£ Ό 3 rt Pt d 0 0 0 P P P- t φ φ

PP 0 Ό t P- rt 0 Ω 0 OP rt er o P- Φ Φ P Φ Λ er rt na na rt Φ φ P rt hd φ HP φ P Φ 0 "CL rt P- P- n 0 φ 0 rt dd Φ cn CΛ P- 0 rt cn z CΛ Hi ff Φ 0 d ff P- d P P- o cn ffi φ P- rt ω P- N er P- he CL P- t O d P- Z rt

P- • o P P- p: ω Pt p Φ 0 P o 0 0 Hi O t cn Φ P- 0 P 0 cn 0 O Φ P

P φ N Ό rt Φ P na tP 0 cn CΛ P- cn 0 d P τ> P φ Pi 0 P na 0 H rt

P σ na H P Φ H d H -> cn 2 Hl Φ d: cn Pi cn 0 0 P- o P P- d CΛ CΛ CL P-

P φ CΛ o φ P cn P- φ φ P- CΛ J- * n er rt P ¹ P- PP φ

P- rt x H P 0 P- P- Φ O

N 0 rt P Ω H P- 0 g Φ cn 0 P ^J Φ P

Sä 3 φ P 0 0 0 0 d 0 PP φ NPP ¹ Hl 0 Hl σ Z φ P CL er Hi Pi Φ cn cn 0 Φ P> 0 Pi Hl • cn d φ rt O t φ rt Φ o O Φ Φ 0 P- P- KJ O p- z 0 0 rt cn rt P oo K p: 0 0 P- CΛ ffi o 0 P- P "cn H rt P rt P Φ cn • _^ P 0 to φ na rt P- n P- Φ H. H CΛ rt O Pt P Pt OH na Ω 3 PP P- P- 3 φ Öd P- h P- O ffi Hi P 3 3

N na CΛ 0 φ φ er 0 P Φ 0 ¹ P Φ φ Φ φ cn cn P * _* cn O: Hl 0 P- PP Hi

P P- P- 0 CΛ P Φ φ 0 0 rt Hl 0 P CL Hl Hi rt t φ tP P- <N <rt rt 0

P- 0 na 2 0 rt P 0 0 Φ P- Hi rt t *. Φ 0- »P- P P Φ Pt cn O P- Φ P- P- P

Ω N 0 CΛ t CΛ rt Pt P ¹ O Φ cn • φ 0 _^ O ff φ CL 0 P P- 0 Φ P o O

ET Φ PP p: Pt S P- PP ¹ 0 0 O 0 rt P- 0 0 Φ rt P er 0 0 Φ

P ^J P- φ cn CΛ Hl 0 cn P σ 0 P- cn cn Φ 0 CL P- P CL rt P- P-

P CS1 φ 0 3 rt PO »» P- 0 rt P- φ cn P- na Hl rt Hi P- 0 tsi Φ OP ¹ Φ 0 CΛ P- 0

Φ Φ 0. φ Pt _* 3 P- 0 rt Φ P P- J-. P- Pt Φ CΛ cn 0 cn H p- P P- P- Φ

P P- Φ CΛ PP 2 PO: O: Pt Φ P- Ό cn 3 d rt er P Φ P CΛ rt na P CΛ d to tP PP d Z 0 rt H Φ p- P öd 0 N φ • n ffi CΛ Φ 0- iQ CΛ φ i X P- d Φ Pt Φ φ rt er 0 P- 0 CΛ Φ H 0 0 P CΛ na d 0 d

* i Ω P- P g rt 0 O P- Hl IQ rt P- 0 P- Φ rt P d Ω P- cn Hl CΛ Ω P rt

1 0 "cn P ^J φ rt er ιQ 0 Ω Φ pd 0" O P- Φ CL 0 0 "N rt O cn P- 0 ^* drt

M * Ό er 0 Hi cn Φ Φ CΛ 0 "P- Φ P Φ P 0 H na Pt Φ H P- cn 0 t i p: 1

3 P- P- rt d Ό P- cn P- Φ 0 0 P- 0 φ cn Φ rt <• P- o 0 3 φ cn P- P P

Ό rt φ P P P ω Φ 0 P P rt Φ Hl CΛ p- P- Φ o rt CL P rt rt 0 rt o

HI NP ^J Φ CΛ Φ Ό 0 Hi 0 Φ PO 0 0 P- 0 N Φ CΛ rt cn P rt PP 3 p: Φ cn CΛ Hl φ Ω P- CL O> P rt P "φ Hl P ¹ P- P - P rt P- P ¹ NP

0 Z P> P- 0 ¹ φ φ H d φ cn _^ na PO üd rt CL rt cn iP OP ¹ P- cn φ P gd ^y Q rt φ CΛ 0 Φ P "rt 3 Pi P Hi φ CΛ P P- • φ CΛ t 0 0 er O 0 3 0 φ ω P- Ω 0 φ 0 cn _^ P er P "P rt 3 rt P • _^ P cn 0 P tsi Hl P- P-

P CΛ 0- P- P ≤ rt P Pi P P Φ P • ü P- P- rt P- d o 0 t

0 Φ P Ω Pi Φ φ P- P- d o EP φ 0 rt P Cd P P- P- öd φ Hl ι-f P P

P P- P- φ 0 p- CΛ OP ¹ cn P P- M cn P P- Φ cn P CΛ PP φ rt φ Ω P rt rt P- cn rt 0 CL iQ Pi P CΛ O 0 cn φ 0 P- ZP p- φ CΛ P-

P 0 'P- rt Φ Φ Φ Φ Φ MP ¹ na P- 0 Pt P- φ φ H na 3 P ¹ n rt o rt φ Φ Φ 0 PP 0 P 0 _^ P ¹ φ na P CΛ ts CΛ H P - Φ φ cn d 0 t-3 CΛ 0 Φ cn P CL Φ CΛ 0 P- φ Φ cn P- Φ d rt Cn cn NN 0 rt cn

Φ P CΛ rt ff rt P rt P- CΛ ω φ P P- 3 P- rt rt 0 0 φ cn φ d Φ Ti 0- g Φ cn Φ P- P- z P na Φ <

P- C na Hl Φ 0 P- 0 P rt P na P P- 0 φ - • _^ P- Φ

CΛ iQ P φ 0 P na φ CΛ) P- P P- P> cn rt P φ cn "Φ CL P- P ^J P

0 na 3 CL ¹ P Φ 0 N 0 cn 0 φ CΛ 0 d rt P- N Pt P- P Φ rt • er Z er

Φ φ Φ P- rt CΛ CΛ PP d P Φ φ rt P- 0 "cn Φ O & Φ P 0 rt rt Φ Φ φ P- t 1 0 Φ Φ rt P- cn rt 0 cn Φ φ P 1 0 Φ P- 1 Φ 0 - 0

1 rt σ P- P 0 P 1 rt P- P- 1 Hl 0 1 0 P "rt 0 P- 1 cn 1 Φ 1 Φ <1 P 1 φ Φ

merstation MS switched off to save electricity. Depending on the different radio traffic load, a different structure of the segmentations can be signaled via the general signaling channel BCCH.

Claims

claims

1. A method for establishing a signaling connection Zvi ^¬ rule a base station (BS) and a subscriber station (MS) of a radio communication system, wherein functions in a first signaling channel (RACH) from the subscriber station (MS) to the base station (BS) Signalisierungsinfor a- ( si) are sent to the channel request, the base station (BS) evaluates the received signaling information (si) and sends at least one piece of identification information (ii) for addressing the subscriber station (MS) in a second signaling channel (AGCH) to the subscriber station (MS) , wherein the identification information (ii) is divided into several segments (sf1, sf2, sf3, sf4), the subscriber station (MS) evaluates the segments (sf1, sf2, sf3, sf) sequentially, and when a segment (sf1, sf2 , sf3, sf4), which is addressed to another subscriber station (MSX), aborts the evaluation of the following segments (sf2, sf3, sf4).

2. The method according to claim 1, wherein the identification information (ii) contains information about parameters of the first signaling channel (RÄCH) in which the subscriber station (MS, MSX) has transmitted.

3. The method as claimed in one of the preceding claims, in which signaling information (si) sent in the first signaling channel (RÄCH) can be separated by CDMA codes (sk).

4. The method according to any one of the preceding claims, in which signaling information (si) transmitted in the first signaling channel (R CH) can be separated by time slots (ts).

5. The method according to any one of the preceding claims, in which Signaling information (si) sent in the first signaling channel (R CH) can be separated by a plurality of successive subchannels (RB) which are arranged within a time slot (ts).

6. The method as claimed in one of the preceding claims, in which the first segment (sfl) of the identification information (ii) contains at least one item of information which is the most distinctive for all subscriber stations (MS, MSX) which may use the first signaling channel (RACH) Has.

7. The method according to claims 2 and 5, wherein the first segment (sfl) of the identification information (ii) contains at least information about the parameter of the subchannel (RB).

8. The method according to any one of claims 1 to 5, wherein the first segment (sfl) of the identification information (ii) contains a random number known to the subscriber station (MS).

9. The method according to claims 2 and 3, in which the first segment (sfl) of the identification information (ii) contains at least information about the CDMA code (sk).

10. The method according to any one of the preceding claims, in which

Segments (sf1, sf2, sf3, sf4) for addressing different subscriber stations (MS, MSX) are sent in succession in a time slot (ts).

11. The method according to claim 10, in which the energy supply of a receiving device (MEE) for receiving the identification information (ii) is temporarily switched off when the evaluation is terminated.

12. The method according to any one of the preceding claims, in which the energy supply of an evaluation device (MAW) for evaluating the identification information (ii) is temporarily switched off when the evaluation is terminated.

13. The method according to any one of the preceding claims, wherein the identification information (ii) includes part of the signaling information (si).

14. The method according to any one of the preceding claims, wherein the signaling connection for channel allocation is used for a transmission of a data packet.