DE1762414C3 - Circuit arrangement for a telecommunications, in particular telephone switching system, which serves mobile subscriber stations that can be reached via radio channels - Google Patents

Description

³ 4

Employer positions adjust to this. If you want to initiate a call, if you are called or if the mobile subscriber station wants to initiate a call himself,
It switches itself off from the incoming traffic. A problem generally forms with a known reverse designated channel from and to the channel designated for outgoing systems the possibility of the occurrence of equal traffic. It deals with these 5-timed calls when calling and calling part of the channel, and the exchange designates another subscriber station to not change channels. To a free channel for the next outgoing call. The avoidance of incorrect connections is known because other subscribers who are on hold use so-called "red lamp" methods. There is no need to change channels beforehand - this is taken immediately when an outgoing call is initiated. Since experience has shown that the incoming traffic for radio subscribers on the call, ie when it is picked up, is significantly less than that sent, which then immediately switches off the postage marking for outgoing traffic (approximately by a factor of the relevant channel. The exchange 10), channels are much rarer with this system - this also works if you need to switch over a free channel. _e j _NEN selective settles. When switching off the

In another known system (DT-AS 15 marking lights up at each subscriber station 10 95 890) the exchange marks all free red lamps, which indicate that there are no outgoing channels and sends the selective call for a called binding to be initiated. The red lamp is the participant via all free channels. For one, it only disappears when another channel is marked and The outgoing call can be any one of the subscriber stations designated as free. With Verneten Channels are occupied. A pending call indicator is this method any free channel set subscriber station is not practicable, as can be for a call with every call remain tuned to this channel until it shows the outgoing traffic from the radio operator other subscriber station (which would be blocked to put on hold. To resolve this difficulty the same channel was set) is occupied (a development of the invention provides that outgoing or incoming). The disadvantage here is that the facilities of the exchange have a first the traffic distribution is left to chance, remains a free channel with a marker for outgoing and that a free marking as well as each selective call traffic and a second free channel with one must be transmitted over all free channels. Provide marking for incoming traffic and

The systems described above all serve that a calling mobile subscriber station Radio stations. Fs, however, suffices the claims 30 with the marking for outgoing traffic of many subscribers, if they are only shown that the assigned channel is tuned in while one of them is they are called. For this purpose one uses local information signals recognizing Selek callsigns on the service channel appealing call displays, which are received when the subscriber station moves with the Markie of their assigned selective call signal tion for incoming traffic provided channel acoustically and / or optically cause a display. 35 sets. By doing this, any interference is between one The participant can then, for. B. for his own incoming and outgoing call Call home or office, or close one. As for the interference with outgoing others Agreements, corresponding action bindings are concerned, is there a calling subscriber station make. These call indicators do not include an initial from the service channel to the outgoing Ver transmitter and are not set up for speech communication. 40 reversely marked channel must switch over to the possible-es It is clear that such call indicators are implemented as easily as possible to avoid confusion on the short period of time should be and that for them the restricted for one, in which the switching center the BeIe-Kanalwechseluel or a channel search required application signal is supplied and they mark the wall would be unsustainable. It is the object of the invention to switch off. This period of time is as short as that to specify a circuit arrangement with which both 45 time span, after the "red lamp" mentioned above - Mobile subscriber stations with intercom procedures the red lamps light up. The invent- (radio stations) circuit arrangement according to the present invention as well as only with call displays therefore offers without equipped subscriber stations in particularly expedient expenditure for the »red lamp« procedure moderate ·· manner. same security.

According to another embodiment of the invention, the circuit arrangement described at the beginning can also be proceeded in such a way that the exchange is formed so that the exchange has free channels continuously a free channel with a Mardurch modulation of the RF carrier specific marking and that both a calling and a dial tone are marked so that both a calling and a mobile subscriber station called via the service channel for the classification and 55 borrowed subscriber station on the marked channel an outgoing call as well as an implementation. Although this simpler system does not offer any mobile subscribers called fully via the service channel, protection against interference between receiving points to establish a connection on incoming and outgoing connections, it can set a free channel, and that only mobile subscribers equipped with call indicators restricts the possibility of any interference display - 60 on the short period of time explained above. Here, too, are firmly set to the Ditnstkanal. This means that there is at least the security that the otherwise poorly exploited service channel offers, the well-known "red lamp" method.
additionally the whole load of calls for only with Waiting purifies. In these shows

persistent, trained as radio stations F i g. 1 is a block diagram of a device according to the invention

Subscriber stations only need a channel-equipped switching system,

F i g. 2 connected in the switching system according to the SD dialing level. The incoming

F i g. 1 used radio telephony transmitter and -Emp- circuits CA are connected via connection lines yes

catcher, outputs of the incoming group selection level SA

F i g. 3 the essential parts of a call indicator, connected. With an outgoing radiotelefoitii-

F i g. 4 is a block diagram of an inventive 5 African call for a stationary subscriber station beausgestalteten portable subscriber station sets for the relevant connection set JER a register a plant with three channels, ED, which fulfills the same function as above jje-

F i g. 5 shows a block diagram of a device according to the invention. When making a call to a portable

designed mobile subscriber station for subscribers sends the analyzer's call number

a system with two channels. 10 sending registers {ED or EA) the connection

First, the structure and the mode of operation of the information about the output indicated by M are presented

Switching system according to FIG. 1 explained in more detail. to the marker MT. This connects the calling

With LAT subscriber circuits are fixed partial connection set with a connecting lineya, ie

which are connected to a bidirectional connection set JEL or JER via the Waltil-

Output coupling stage ST are connected. For outgoing 15 levels SD and SA, or a connection: s itz YES

the traffic is this final coupling stage ST with a via the optional stage SA.

Primary switching stage SP connected, at the outputs of which the incoming and outgoing circuits CA

Connecting clauses JEL are attached η. When loading and CD are connected with their other sides

Laying through an outgoing call connects to an F group dial level SK In this set do

a JEL connection set via a selection device - 20 crosspoints with each connection a connection

management PD with an outgoing register ED. The latter connection between an entrance (left in Fig. 1)

aυlysiert the call number of the called subscriber and two exits (right in Fig. 1). Of the

and, if it is a fixed subscriber station, one of the two outputs belongs to a group of

it forwards connection information to the outputs that lead to a final coupling stage STR ,

Telephony Markers MT via an information 25 to the subscriber circuits LAM of the mobile

v elf FC. This is connected to the borrowed subscriber stations denoted by T. the

Output of the outgoing register ED indicated. other output belongs to a group of output

The connection sets JEL are also connected to the inputs that are connected to radio telephony channel units CRT at an anticipated group selection stage SD , each of which includes a switching device (α) which in turn connects via intermediate lines m 30 (which is connected to the K group selection stage is), access to an incoming group dial level SA and a transmission device (b), de im weserithat. Other outputs of the outgoing group selection borrowed a signaling device and a 2-wire / step SD are included with outgoing ^ connection sets JD 4-wire fork. The latter gives four-wire connection to the traffic with other offices, and access to the outgoing channel and the incoming channel, especially other inputs of the incoming group dialing of a duplex radio telephony channel. It is level SA are for those arriving from other offices - it is assumed that the reception is based on the ringing traffic with incoming connection sets YES diversity principle, and F i g. 1 shows three connections. The outputs of the incoming group interception channels Vr, from which a channel selector SV selects the selection stage SA, are connected to an end group selection stage SF and connected to the outgoing channel vd, which in turn connects to the final coupling stage 40, which ensures the best reception,
connected. If it is an internal connection, the marker MT builds a provision for the transmission of the call number connection LAT-ST-SP-JEL-SD-SA-SF-ST-LAT ' . called mobile subscriber stations in the case of when a part of incoming calls connected to another exchange. For this service channel subscriber is required, then the marker MT 45 is set up only one transmission channel VS is provided, which is connected to the one connection on LAT via ST-SP-JEL-SD-JD service channel unit CS , which is connected to the other office. Sends out phone numbers in a predetermined form. the

In the case of an incoming call, the service channel unit CS connects to both

Affected incoming connection set YES with the call of the call indicator as well as for the call from local

an incoming register EA via a selection of 50 mobile subscribers (the calls for call indicators,

facility PA. The EA register analyzes the calls or calls without an answer should most of the

number of the called subscriber who make it up from the ent- traffic on this channel and the calls

remote office is supplied, and, in the case of a portable subscriber stations only one

fixed called Teflnebmerstelle, directs it over the small part). For the remaining traffic, two information multiples FC connection information 55 embodiments are described: In a preferred

to marker iff. This information-covered embodiment is also one of the free channels

averaging is indicated with output T. The marker CRT marked with a tone "D *". He is then from

JIfT then sets up the JA-SA-SF-St-LAT connection can be used in a mobile group of participants

on. the one for an outgoing call and the following one

The radio telephony devices are now connected. The tone »D * becomes permanent as a marker

describes which are assigned to the Vennitüungsanlage and sent out via one of the free channels CRT . Am

in Fig. 1 to the right of the dash-dotted line XX another free channel CRT is activated with a tone * A *

are shown. These radio telephony facilities are re-marked for use for an arriving on iron

accommodate a number of incoming circuits CA. mendea call following connection. It is enough if

and outgoing circuits CD. The outgoing 65 the tone M «is only sent out when a

Circuits CD are via connection lines jd and incoming call is present. The sound * A * came "a!> - Connection sets JER (which are switched to the connection sets as soon as the called subscriber JEL ) at the inputs of the outgoing group - the channel marked with it. At dcr

7 8

In another embodiment of the invention, only one channel is marked with a tone "G" for transmitting the number of the called part. This recipient via the service channel. Thereafter dei causes channel is then both for outgoing calls and markers MRT (iter compound Itr) the Endkoppel compounds and stage for compounds of training STR for connecting the subscriber line circuit broadcast a call number via the service channel comparable 5 LAM of the called subscriber with the In between. The tone "G" must of course be continuously transmitted to the y group selection level SY, which is sent to the. selected channel. In addition, cause dei

The methodical selection of the marker MRT to be marked (via connection Iy) the / -group-free channels is carried out by a selection unit PT, option SY for connecting this intermediate line, with a variable priority order. In Fig. 1 io and at the same time the intermediate line, which belongs to the bctrofist the selection unit PT with two priority calls "A" fenen channel unit CRT , with a free connected and "/)" shown for the preferred embodiment coming circuit CA. The signal exchange with two channels to be marked. The selection (including the deactivation of the marking unit PT is to be understood via connections Ip in connection with the tone "A" ), which follows the outside with all channel units CRT and can follow the number of the called subscriber, Recognize the laying status of each channel and designate the MRT and the marking channels with the help of the marker. It is here an- channel unit CRT (b) in front of it. In addition, it is noted that the connections Ip to the channel corrects the radio telephony marker MRT to the remote units CRT associated devices of the Y - speaking marker MT, which lead to the already described group selection level SY . Each time a channel designated by the wise man to set up a connection in the switching priority ring "ß" is seized, circuit CA controls.

follows the selection of the according to the order of priority If the subscriber circuit LAM is busy

of the ring "O" next free channel, which is then the status, or if the selection unit PT does not

Sending the tone "D" is initiated. If the priority-free channel finds, the register sends a busy

ity ring M «only comes into effect when an indication is given to the calling subscriber. If the

There is an incoming call for a mobile part marker MRT none of the number of the called

rehmerstelle. Then a free participant assigned participant is selected; attitudeL / IM

Channel that causes the tone "A" to be sent out, the call can be redirected to an answering station.

will. If the ring »Λ« cannot find a free channel, it will be forwarded.

the call is rejected as in the case of a 30 For an outgoing call (via the with tone »D«

occupied participant. The formation of the two marked canals), initiates the affected canal inlet

Priority inge can be in any known form called CRT (b) the information regarding the identity of the

respectively. For the execution form with the tone "C" calling subscriber to the marker MRT ,

If the selection unit naturally includes only one priority, the marker MRT controls this subscriber

rituality ring. 35 associated subscriber circuit LAM , which is in

The organs SY. STR, LAM, CRT, CS and PT must be free. Then the marker controls - it is controlled by a radio telephony marker MRT similar to an incoming call. In the case of an incoming call to establish a connection between a free call indicator, the register (ED or EA) circuit CD and on the one hand the Tcil Lehmerschald recognize this type of call and send the called number 40 to LAM and, on the other hand, the relevant channel with a CRT unit identifying this type of call . The assigned circuit CD assigns its information (output Av of the registers) via the inside to the connection set JER assigned to it, the formation multiple FC to the marker MRT. This one outgoing register ED occupies over the selection evaluates the call number to one for the transmission einrichluigPZ). The register ED sends the form suitable for dialing and sends it to the service channel unit 45 ton to the calling subscriber, who then dials the number CS, which it dials via the service channel to send out the desired subscriber. That Rebringt. Since the call indicator no response gister ED analyzes this number and sends entzeichen received, the connection is released by speaking information about the marker MT or transmission of the phone number. to the MRI marker (depending on the type of call).

In the case of an incoming call for a mobile subscriber station, the connection with the subscriber station LAM sends the relevant notification to the billing by means of an in the register (ED or EA) via the information manifold FC Subscriber circuit provided billing meter, the number of the called subscriber as well as information identifying the If the marker MRT under <fer designated type of connection Now no subscriber circuit can also (output * M «of the register) to the marker MRT. 55 here a forwarding of the call to an interrogation-the marker MRT has taken place via a place not shown. Aech here is the signal decoder and the connections learn access exchange before and after the transmission of the call number to the subscriber circuit LAM of the called part of the calling party with the participation of the subscriber. If this subscriber circuit LAM in the channel unit CRT (b) and the marker MRT. If it is in the free state, the marker controls the MRT via a 60. The signal exchange itself will be described later. Connection Ipa the selection of a free channel through F i g. 2 shows that of the transmission and that of the priority ring »A * of the selection booklet PT. If the above-mentioned facilities serving the reception find this a free channel, it reports that each connection channel is sent by a transmitter EC indigency to both the MRT marker and the and several (three m Fig. 2), spatially from each other devices. en of the r-group optional level SY. The Mar- 65 separately arranged receivers RC served. The kien r causes the part "b * of the affected channel service channel is used by its own transmitter ES unit CRT for broadcasting the tone M" and is used.

initiates (via connection / rs) the service channel unit O F i g. 3 shows the most essential parts of a call

ίο

indicator. This call indicator (which is a portable subscriber station

a known apparatus is) consists of a device according to the invention for a system with three channels

receiver tuned to the service channel, one is equipped. But first there is the program

Selective call decoder and a call display signal of the signal exchange between this participant

encoder SA. 5 place and the switching system according to Fig

With reference to FIG. 4 the facilities described:

Incoming call program of the switching program of the subscriber station

Transmission of call number on service channel;

Mark a free

Channel with tone »A« ■ >

Decoding of the selective call;

Search for the channel marked Μ «;

after the end of the search:

<Confirmation signal Tl.

Switch-off of tone »A«; Connection establishment

Reputation >

Call;

Take off;

<Signal Tl

Through-connection

Hang up;

< Signal TZ

Trigger

Vote on service channel

Outgoing call program of the switching program of the subscriber station

Take off;

Search for the channel marked "Z>";

after the end of the search:

< Transmission of the occupancy signal T1IT2IT1

Deactivation of Ton We (marking of another channel with tone »D«)

< Transmission of the identity of the calling party

Participant via Γ1 / Τ2 return of the identity >

< Confirmation signal Tl

Scraping the dial tone >

< Dialing signals with Γ1 / Γ2

Connection establishment count

Hang up < signal Γ3

Triggering coordination on service channel

a 12

The in F i g. 4 shown mobile subscriber or an optical display device. The participant:

Place comprises a duplex transceiver 1, takes off, and this is the Sigiiideinheit over the. Vqr

the one transmission line 2 and one receiving line 3 binding 17 brought to the attention. The signals included are. The transceiver I is on unit 12 then sends via output 1,4 and send;

one of the channels tuned under control of the 3 line 2 a tone TZ off as a lift signal. Leg;

Ring counter 4. Its outputs 5 with quartz filters in the reception of the picking up of the. Called participant

Transceiver 1 are connected. The input 6 characterizing signal. 7'2 in the mediation is

of the counter 4 is connected to a clock generator 7, switched through and the call switched off. The Vex

the z. B. S emits pulses per second and thus the bond is established with it.

Transmitter-receiver 1 for 0.2 seconds on a channel OK After the call has ended, the exchange is coordinated when searching for a channel. The clock generator 7, which is usual when the calling subscriber hangs up, is active when a process starts at its input 8. If the draw is present by hanging up the control signal. The coordination of the transmitter - the immovable participant position takes place, this receiver I on a marked channel is communicated via connection 17 of the signal unit 12, filters are determined, which are transmitted to the receiving line 3 auge - 15 the cm Einhüngezeieu (tone T3) via excluded : The filter 9 is tuned to the tone "/!" And gang 14 and transmission line 3. At the same time, the filter 10 is tuned to the tone "D". The output signal unit 12 sends a signal to the mood on the fixed service channel via its output 24 to the gate circuit 25, the output 26 of which is connected to the recognition device in that the counter 4 outputs a signal via output 8 of the clock generator 7. So that its output 11, when it enters that position, the clock 7 starts and the counter 4 switches, in which it continues the transmitter-receiver 1 to the transmitter-receiver 1. As soon as the setting service channel tunes. If the service channel has also been reached on the service channel, the 6th counter 4 would have to be marked with a tone, a filter 25 corresponding to the Torden filters 9 and 10 would have to be connected via its output H. This disappears. The signal can be seen. 25 output 26 of gate circuit 25, and the l'akt-

The free, mobile part of their positions are encoder 7 and the counter 4 remains. The Seuder

Tuned to the service channel while waiting. Receiver remains on the service channel

A signal unit 12 is provided between transmission line 2.

■ Input 13) and receive line 3 (output 14) When an outgoing call is made, the subscriber picks up

switched. An output 15 of the signal unit 12 is 30 from, and the signal 12 is received via connection 17

connected to a selective call decoder 16, via knowledge thereof. The signal unit 12 is so arranged

OiC usual connections 17 is the signal direction, UaB in this case they send a signal to their output

unit 12 with the telephone set 18 issues passage 27 and thus opens a gate circuit 28.

bound. controls. The output 29 of a gate circuit 28 is

The Signaleinheic 12 receives old calls, which in turn at 35 with the input 8 of the clock 7 \ earth m the service channel for transmission. Only with bindings, which is left on around the transmitter hmpfane; nem Call for the assigned subscriber control 1 Air Search for the one marked with lon »£>« the decoder 16 responds and gives control over its channel. When voting on this channel Output 19 sends a signal to a gate circuit 20. The filter 10 emits a signal, on the one hand (via Aus-Cber The gate circuit 20 puts its output 21 on a 40 gang 30) to the signal unit 12 and on the other hand (via Signal to input 8 of clock generator 7, which thus output 31) to a blocking input of the gate circuit starts up and the transmitter-receiver 28 via the counter 4. The gate circuit 28 then outputs no signal switches off from the service channel and successively on their output 29, the clock 7 and the count 4 different channels. stop, and the transceiver 1 stays on the

The exchange sends the tone * A « on a channel marked 45 with tone ■> / ->«. The above

Channel off when it sends a selective call to output 30 of filter 10 on the lon »/)«

the service channel. This prevents the signal unit 12, which is also involved, from sending a helegungssignal

Tone »On marked channel of the selection unit PT (tone 7Ί followed by tone Tl and then again

(Fig. 1) to mark with the tone "/)" off tone 7 * 1) from output 14 and transmission 2.

is chosen. 5 ° Thereupon: the attendant switches off the tone »D * .

As soon as the transmitter-receiver 1 on the with tone * A * The disappearance of the tone Φ * ru at this point in time marked channel is tuned, the filter 9 indicates to the signal unit 12 that the channel did a signal (via output 22) to the signal unit and was actually occupied by a station. The Signalein signal (via output 23) to the gate circuit 20 unit terminates the transmission of the occupancy signal. The gate circuit 20 is thereby blocked, outputs 53 and therefore no longer sends the identification of its acceptance generator to its output 21 and emission (with ions T1 and Ti). After receiving the counter4 stops. The sender / receiver 1 remains with the identifier in the exchange, the latter sends the identifier back on the channel marked with tone »Α«. The SignaleitÜMt IJ receives correct. The signal unit 12 causes (via its identifier sent back via input 13 and output 14) the transmission of a confirmation βο checks whether this actually d «" alis sent signal (tone 7Ί) over the transmission line 2. Thereupon corresponds to the identifier. If this is the case, sends kie "sin mediation switches the sound" Α "from. in the illustrated acknowledgment signal (sound ΓΙ) from which the mediation embodiment responds the signal unit to m for producing a compound a register shutdown of sound""not. After connection» a The signal unit switches off the telephone set-up, the exchange sends the call signal, the 63 apparatus 18 via connections 33, 34 and the transmission over the receiving line 3 and the input 13 to the receiving line (2,3). The signal unit 12 arrives, which puts it on the telephone tone, and the subscriber can forwards the number of the device 18. In this case, an alarm clock speaks to the subscriber who is called en. The signal unit? puts

13th

the dial tone to brirgt and they by means of the tones Tl and the transmitter-receiver 1 arises again chen

and T1 for transmission over the transmission line 2. The service channel a.

Switching sets up the desired connection, calls Now an exemplary embodiment for a partial

the called subscriber and specifies the (or) subscriber station that is required for the operation with

Charge pulse (s) to the charge counter of the call- 5 two channels (instead of the three described) suitable

the participant. The hanging up when moving is. The circuit is shown in FIG. 5 shown and that

borrowed subscriber station at the end of the call triggers the signal exchange program in the following day

the processes already described above, bark:

Incoming call

Mediation program Program of the subscriber station

Transmission of phone number

on service channel>

Selective call decoding;

Search for the tone "G"

marked channel;

after the end of the search:

< Occupancy signal T \\ T1 \ T \

Deactivation of tone »G«

(Marking another channel

with tone »G«)

Sound production

Reputation >

call

Take off

< Signal Tl

Through-connection

hang up

< Signal T3

Trigger coordination on service channel

Outgoing call

Mediation program Program of the subscriber station

Take off

Search for the channel marked with the tone »G«; after the end of the search: * Occupancy signal Tl / Tl / Ti

Deactivation of tone »G« >

(Marking another channel

with tone »G«)

Transmission of the identity of the calling party via

Return of the identity >

<Confirmation signal Tl

Deactivating the dial tone >

< Dialing signals with Tl] Tl

Connection establishment
count

hang up

<Signal Γ3

Trigger

Vote on service channel

The in F i g. 5 subscriber station shown also includes a duplex transceiver 1, an to which a transmission line 2 and a reception line 3 are connected, and under the control of the ring counter 4 is set to one channel. Here, too, the input 6 of the counter 4 is connected to a clock generator 7, which is in function when its input 8 has a signal applied to it. The setting of the Transceiver 1 on the channel marked with tone "G" is determined by the filter 34, which is sent to the Receiving line 3 is connected. The setting to the service channel is also here — as in FIG. 4 - indicated by a signal at output 11 of counter 4.

The free subscriber stations are set to wait for the service channel, and here, too, a signal unit 12 is provided, which has its input 13 to the receiving line 3, its output 14 to the transmission line 2, its output 15 to the decoder 16 and via connections 17 is connected to the telephone set 18.

When a call is received for the assigned subscriber station, the decoder 16 controls the gate circuit 36 at its output 35 via its output 19. The output 37 of this gate circuit is connected to the input 8 of the clock generator 7, which is started by the signal emitted by the gate circuit 36. The counter 4 controls the channel search. When the transceiver 1 is tuned to the channel marked with the tone "G", the filter 34 receives the tone>:> G "and sends it via output 38 16

the signal unit 12 to. At the same time it locks over its output 39 the gate circuit 36. The gate circuit 36 therefore emits no signal, and the clock 7 stops. The transceiver 1 remains set to the channel marked with tone "G".

As a result of the supply of the tone "G" to the signal unit 12 (via output 38 of the filter 34), the signal unit 12 must transmit a signal to the exchange. Since the channel may have been seized by another subscriber station for an outgoing connection, a simple confirmation character is not sufficient here, but an occupancy character (Tl - Tl - Tl) must be sent. As a result of the first part of this signal, the switchboard switches off the "G" tone on the affected channel (it puts it on a different channel). If the signal unit 12 detects that the tone "G" has been switched off at this point in time, it recognizes from this that its own station has seized the channel. The signaling unit 12 terminates the seizure signal and the switch establishes the connection and initiates the call. The call signal is forwarded from the signal unit 12 to the telephone set 18. The functions that follow the called subscriber picking up are the same as those on the basis of FIG. 4 described.

For an outgoing call, everything proceeds as in FIG. 4, with the exception that the notice board at the output 27 of the signal unit 12 is also fed to the input 35 of the gate circuit 36, and not another gate circuit.

Circuit arrangement for a telecommunications, in particular telephone switching system. which serves mobile subscriber stations that can be reached via radio channels

List of terms used

Translation D

Subscriber circuit

Output coupling stage

Primary coupling stage

Connection set

Selection facility

outgoing register

Telephone marker

Information multiple

exit

outgoing group dialing level

Intermediate line

incoming group dial level

End group selection level

incoming register

outgoing circuit

incoming circuit

Connection set

Connecting line

Y - group dial level

Radio telephony channel unit

walking channel

coming channel

Receiving channel

Channel selector

Service channel unit

Transmission channel

Priority ring

Selection unit

Connection 009 638/80

Reference number Original language F LAT, LAM circuit de ligne ST, STR level de selection terminals SP otage primaire JEL joncteur d'enregisireur PD, PA chaine de preselection ED enregistreur de depart MT marqueur telophonique FC faisceau connecteur T, Av, M ligne sortante, sortie SD floor de selection de groupe de depart m maille SA floor de selection de groupe d'arrivee SF floor de groupe final EA enregistreur d'arrivee CD circuit de depart CA circuit d'arrivee JER joncteur JdYes jonction SY 6 days de commutation de groupe en Y CRT canal radiotolephonique vd voie de dopart να voie d'arrivoe Vr voie de reception SV solecteur de voie CS circuit de canal de service VS voie d'emission THERE anneau de prioriti PT Dispositif de priorito tournante Ip, lam, ur, lpa, lcs, Iy liaison

List of terms used

Reference number

Original language F

Translation D

MRI EC, ES Rc SA

9.10

14, 15

21, 22, 23, 24

26.27

29, 30, 31, 32.33

37, 38, 39

marqueur radiotelephonique Radiotelephony markers emetter Channel recepteur recipient signal avertisseur Call indicator beeper emetteur-recepteur (-duplex) (Duplex) transmitter-receiver ligne d'emission Transmission line ligne de reception Receiving line compteur (en anneau) (Ring) counter sortie exit entree input generator of cadence Clock entree input filter filter sortie exit signaler Signal unit entree input sortie exit decodeur (d'appel selectif) (Selective call) decoder connexion connection telephone Telephone set sortie exit porte Gate switching sortie exit porte Gate switching sortie exit porte Gate switching sortie exit connexion connection filter filter entree input porte Gate switching sortie exit

For this purpose 2 sheets of drawings

Claims (6)

1 2 7. Circuit arrangement according to one of the claims: Proverbs 1 bü 6, "characterized in that each mobile ?! 1. Circuit arrangement for a telecommunication, catcher (1) after 'the call ended (hang-up in particular Ftrnsprechvermittlungsanlage, the 5 in the telephone set 18) again on the fixed reachable via radio channels, mobile sub-service channel (CS) sets. Served subscriber connections, in which a fixed 8th circuit arrangement is provided after one of the service channel, via the selective call Proverbs 1 to 7, characterized in that signals can be transmitted and to which the free signal unit (12) of the mobile subscriber mobile subscriber stations in Waiting position io provides the recording and transmission of the set for, and in which the connection via the establishment and release of connections another, free signals required by the exchange (ringing signals, dialing signals, setting designated channel is established, and notice signs , Confirmation signals, characterized in that the relocation signals etc.) carries out,
free channels (CRT) through module 15 lation of the HF carrier with certain dial tone marked so that both a calling mobile subscriber station for initiation and Execution of an outgoing call as well. The invention relates to a circuit arrangement for a mobile 20 called via the service channel, a telecommunications operator, in particular a telephone exchange Subscriber station for establishing a connection to the processing system, which can be reached via radio channels can set a free channel and that only serves mobile subscriber lines in which a mobile fixed service channel equipped with call indicators is provided, via the selective Subscriber stations can be sent permanently to the service channel called signals and to which the free local places are. 25 mobile subscriber stations on hold 2. Circuit arrangement according to claim 1, there are, and in which the connection is characterized by the fact that the devices other, free and from the switching center (PT, CRT) of the switching center, a first marked channel is established. Such a free channel with a marker for outgoing known (z. B. German patents 9 15 236, traffic (tone "D") and a second free channel 30 8 95 926) circuit arrangement offers the advantage of having a marker for incoming traffic the mobile subscriber stations (radio part (tone M «) provided and that a calling local subscriber) is always set to a permanently mobile subscriber station in the idle state on the channel (the service channel) indicated with the marking for outgoing traffic (tone» £> «) and only change the channel if the channel you are viewing is tuned in while you have a call to talk to. On the other hand, the following must be taken into account, recognizing the call sign on the service channel (CS) : that the average mobile subscriber station on the with the lent call duration (about 2 to 3 minutes) a multiple marking for incoming traffic (tone "/ 4") times the duration of the Initiation of a connection provided channel adjusts (Fig. 4). required signal exchange is that the from 3. Circuit arrangement according to claim 2, that 40 service channel traffic to be dealt with is substantially (characterized, for example, by the fact that the marking of a 30 to 40 times) is lower than that of the connection-free channel for outgoing traffic (tone "£>") to communication channels coping traffic, and that in practice and the marking of a free channel mostly only a few radio channels are available for incoming traffic (tone "A") only with. The poor utilization of the service channel is therefore particularly disadvantageous for sending a selective call via the service channel. channel (CS) . In another system (DT-PS 9 61 110) 4. Circuit arrangement according to claim 1, characterized in that the entire traffic is distributed over the entirety of the channels by the switching center. The switching center designates a free, permanently free channel (CRT) with a Mar channel, which provides for the next call and for the subsequent call (tone "G") and that the following call is used. As soon as this one calling channel and one via the service channel is occupied, the switching center (CS) designates the mobile subscriber station called on a different free channel than the one that sets the marked channel as the closest (FIG. 5). is to be used. This system is disadvantageous 5. Circuit arrangement according to one of the above, however, that each time a channel is occupied, that is, each time a connection is established, all free subscribers that the numbers of called subscribers must make a channel change in order to register themselves ii (ED, EA) the switching waiting position on the now newly designatedei place the type of the desired connection to set the free channel. determine and, if necessary, the transmission of the In a further known system referred to di Selective call via the service channel (CS) gives 60 switching center two free channels; one for you leave. outgoing traffic, the other for arriving 6. Circuit arrangement according to Claim 5, there being traffic. All free mobile subscribers are identified by the fact that the registers (ED, EA) are set in waiting position on the channel designated for incoming calls to a call indicator, the out-traffic channel. When the selective call is sent without any further incoming call, the called mobile binding action in the exchange occupies this channel, the exchange starts and after the selective call has been sent, another channel for the incoming call triggers the incoming connection. Traffic and all parts remaining in the host position