Method of allocating access rights to a telecommunications channel to subscriber stations of a telecommunications network and subscriber station

Abstract

A method and a subscriber station for allocating rights of access to a telecommunications channel of the telecommunications network to at least one subscriber station ( 5, 10, 15, 20 ) are proposed in which information signals are transmitted to the at least one subscriber station ( 5, 10, 15, 20 ). With the information signals, access authorization data ( 45, 50, 55 ) are transmitted to the at least one subscriber station ( 5, 10, 15, 20 ). Upon reception of the access authorization data ( 45, 50, 55 ) in an evaluation unit ( 6 ) of the at least one subscriber station ( 5, 10, 15, 20 ), the question is asked whether the access authorization data ( 45, 50, 55 ) include an access threshold value (S), and the access threshold value (S) is compared with a random number or a pseudo-random number (R), and the right of access to a telecommunications channel of the at least one subscriber station ( 5, 10, 15, 20 ) is granted as a function of the outcome of comparison.

The invention claimed is: 
     
      
       1. A method for allocating rights of access to at least one telecommunications channel usable by a plurality of subscriber stations in common, of a telecommunications network to at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) of a telecommunications network, comprising the steps of transmitting information signals to at least one subscriber station ( 5 ,  10 ,  15 ,  20 ); transmitting with the information signals, access authorization data ( 45 ,  50 ,  55 ) to the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ); upon reception of the access authorization data ( 45 ,  50 ,  55 ) in an evaluation unit ( 6 ) of the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ), asking a question whether the access authorization data ( 45 ,  50 ,  55 ) include an access threshold value (S), and comparing the access threshold value (S) with a random number or a pseudo-random number (R); and granting a right of access to a telecommunications channel of the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) as a function of an outcome of the comparison. 
      
     
     
      
       2. A method as defined in  claim 1 ; and further comprising granting the right of access as a function of the outcome of comparison on a condition that the random number or the pseudo-random number (R) is greate than or equal to the access threshold value (S). 
      
     
     
      
       3. A method as defined in  claim 1 ; and further comprising transmitting the access information data ( 45 ,  50 ,  55 ) as bit patterns. 
      
     
     
      
       4. A method as defined in  claim 1 ; and further comprising transmitting the information signals to the at least one subscriber station ( 5 ,  10 ,  150 ,  20 ) via at least one signaling channel ( 25 ). 
      
     
     
      
       5. A method as defined in  claim 1 ; and further comprising enabling the access to at least one communication channel of the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) as a function of an incidence of message traffic on at east on telecommunication channel. 
      
     
     
      
       6. A method for allocating rights of access to at least one telecommunications channel usable by a plurality of subscriber stations in common, of a telecommunications network to at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) of a telecommunications network, comprising the steps of transmitting information signals to at least one subscriber station ( 5 ,  10 ,  15 ,  20 ); transmitting with the information signals, access authorization data ( 45 ,  50 ,  55 ) to the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ): upon reception of the access authorization data ( 45 ,  50 ,  55 ) in an evaluation unit ( 6 ) of the at least one subscriber station ( 5 ,  10 , 15 ,  20 ), asking a question whether the access authorization data ( 45 ,  50 ,  55 ) include an access threshold value (S), and comparing the access threshold value (S) with a random number or a pseudo-random number (R); and granting a right of access to a telecommunications channel of the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) as a function of an outcome of the comparison; and further comprising asking in the evaluation unit of the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) a question whether the access authorization data ( 45 ,  50 ,  55 ) include access authorization Information (S 0 , S 1 , S 2 , S 3 , S 4 , Z 0 , Z 1 , Z 2 , Z 3 ) with access class information (Z 0 , Z 1 , Z 2 , Z 3 ) for at least one predetermined user class ( 35 ,  40 ) in which case and on a condition that the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) is assigned to an at least one predetermined user class ( 35 ,  40 ) to which access to at least one telecommunication channel of the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) is granted as a function of the access class information (Z 0 , Z 1 , Z 2 , Z 3 ) for this user class ( 35 ,  40 ). 
      
     
     
      
       7. A method for allocating rights of access to at least one telecommunications channel usable by a plurality of subscriber stations in common, of a telecommunications network to at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) of a telecommunications network, comprising the steps of transmitting information signals to at least one subscriber station ( 5 ,  10 ,  15 ,  20 ); transmitting with the information signals, access authorization data ( 45 ,  50 ,  55 ) to the at least one subscriber station ( 5 ,  10 ,  150 ,  20 ); upon reception of the access authorization data ( 45 ,  50 ,  55 ) in an evaluation unit ( 6 ) of the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ), asking a question whether the access authorization data ( 45 ,  50 ,  55 ) include an access threshold value (S), and comparing the access threshold value (S) with a random number or a pseudo-random number (R); and granting a right of access to a telecommunications channel of the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) as a function of an outcome of the comparison; and further comprising asking in an evaluation unit ( 60 ) of the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) a question whether the access authorization data ( 4 ,  50 ,  55 ) include priority information in form of a priority threshold value (P), in which case and on a condition that the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) is assigned to a pk ( 80 ,  85 ) with a priority value, comparing the priority value with the priority threshold value (P), and granting an access to a telecommunication channel of the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) as a function of an outcome of the comparison. 
      
     
     
      
       8. A method as defined in  claim 7 , wherein said granting the access to a telecommunication channel as a function of the outcome of the comparison is performed on a condition that the priority value is greater than or equal to the priority threshold value (P). 
      
     
     
      
       9. A method for allocating rights of access to at least one telecommunications channel usable by a plurality of subscriber stations in common, of a telecommunications network to at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) of a telecommunications network, comprising the steps of transmitting information signals to at least one subscriber station ( 5 ,  10 ,  15 ,  20 ); transmitting with the information signals, access authorization data ( 45 ,  50 ,  55 ) to the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ); upon reception of the access authorization data ( 45 ,  50 ,  55 ) in an evaluation unit ( 6 ) of the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ), asking a question whether the access authorization data ( 45 ,  50 ,  55 ) include an access threshold value (S), and comparing the access threshold value (S) with a random number or a pseudo-random number (R); and granting a right of access to a telecommunications channel of the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) as a function of an outcome of the comparison; and further comprising asking an evaluation unit ( 60 ) of the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) a question whether the access authorization data ( 45 ,  50 ,  55 ) include telecommunications service information (D 0 , D 1 , D 2 ), which for telecommunications services offered by the telecommunications network indicate whether the access to at least one telecommunications channel for use, or a request for such a telecommunications surface is enabled. 
      
     
     
      
       10. A method for allocating rights of access to at least one telecommunications channel usable by a plurality of subscriber stations in common, of a telecommunications network to at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) of a telecommunications network, comprising the steps of transmitting information signals to at least one subscriber station ( 5 ,  10 ,  15 ,  20 ); transmitting with the information signals, access authorization data ( 45 ,  50 ,  55 ) to the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ); upon reception of the access authorization data ( 45 ,  50 ,  55 ) in an evaluation unit ( 6 ) of the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ), asking a question whether the access authorization data ( 45 ,  50 ,  55 ) include an access threshold value (S), aid comparing the access threshold value (S) with a random number or a pseudo-random number (R); and granting a right of access to a telecommunications channel of the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) as a function of an outcome of the comparison; and further comprising asking an evaluation unit ( 60 ) of the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) a question whether the access authorization data ( 45 ,  50 ,  55 ) include an item of access information (S 4 ) which indicates whether the access authorization data ( 45 ,  50 ,  55 ) are evaluated as an access threshold value (S), as an access channel information (Z 0 , Z 1 , Z 2 , Z 3 ) as a priority threshold value (P), and/or as telecommunications service information (D 0 , D 1 , D 2 ). 
      
     
     
      
       11. A method for allocating rights of access to at least one telecommunications channel usable by a plurality of subscriber stations in common, of a telecommunications network to at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) of a telecommunications network, comprising tile steps of transmitting information signals to at least one subscriber station ( 5 ,  10 ,  15 ,  20 ); transmitting with the information signals, access authorization data ( 45 ,  50 ,  55 ) to the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ); upon reception of the access authorization data ( 45 ,  50 ,  55 ) in an evaluation unit ( 6 ) of the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ), asking a question whether the access authorization data ( 45 ,  50 ,  55 ) include an access threshold value (S), and comparing the access threshold value (S) with a random number or a pseudo-random number (R); and granting a right of access to a telecommunications channel of the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) as a function of an outcome of the comparison; and further comprising asking an evaluation unit ( 60 ) of the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) a question whether the access authorization data ( 45 ,  50 ,  55 ) include an item of access information (S 4 ), which indicates whether the access authorization data ( 45 ,  50 ,  55 ) include either an access threshold value (S) or access channel information (Z 0 , Z 1 , Z 2 , Z 3 ), and evaluating the access authorization data ( 45 ,  50 ,  55 ) in accordance with an answer to the question in the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ). 
      
     
     
      
       12. A method for allocating rights of access to at least one telecommunications channel usable by a plurality of subscriber stations in common, of a telecommunications network to at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) of a telecommunications network, comprising the steps of transmitting information signals to at least one subscriber station ( 5 ,  10 ,  15 ,  20 ); transmitting with the information signals, access authorization data ( 45 ,  50 ,  55 ) to the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ); upon reception of the access authorization data ( 45 ,  50 ,  55 ) in an evaluation unit ( 6 ) of the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ), asking a question whether the access authorization data ( 45 ,  50 ,  55 ) include an access threshold value (S), and comparing the access threshold value (S) with a random number or a pseudo-random number (R); and granting a right of access to a telecommunications channel of the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) as a function of an outcome of the comparison: transmitting the access information data ( 45 ,  50 ,  55 ) as bit patterns; and further comprising providing in the at least one telecommunication channel at least partly a nonselective access class ( 30 ). 
      
     
     
      
       13. A subscriber station to which an access to at least one telecommunication channel usable by a plurality of subscriber stations in common can be granted, comprising means for receiving information signals; an evaluation unit ( 60 ) for asking when information signals with access authorization data means ( 65 ) as authorization data ( 45 ,  50 ,  55 ) are received, whether the access authorization data ( 45 ,  50 ,  55 ) include an access threshold value (S) for comparison of the access threshold value (S) with a random number or a pseudo-random number (R), and for ascertaining, as a function of an outcome of a comparison whether an access of the at least one subscriber station ( 5 ,  10 ,  15 ,  20 ) to the at least one telecommunications channel is enabled. 
      
     
     
       14. A method for allocating initial rights of access to a random access channel usable by a plurality of subscriber stations in common, of a telecommunications network to at least one subscriber station of a telecommunications network, comprising the steps of:
 transmitting information signals to at least one subscriber station;   transmitting with the information signals, access authorization data providing an access threshold value and access class information for at least one prescribed privileged user class to the at least one subscriber station;   upon reception of the access authorization data in an evaluation unit of the at least one subscriber station, asking a question whether the access authorization data include an access threshold value, and   asking a question whether an access authorization card associated with the at least one subscriber station holds an affiliation of the at least one subscriber station to a privileged user class and if so whether initial access to the random access channel is granted to the at least one subscriber station on the basis of the access class information for this privileged user class irrespective of the access threshold value, and   having determined that the at least one subscriber station either is not associated with a privileged user class or initial access to the random access channel is not granted to the privileged user class to which the at least one subscriber station is associated on the basis of the access class information irrespective of the access threshold value, comparing the access threshold value with a random number or a pseudo-random number; and   granting an initial right of access to a random access channel of the at least one subscriber station as a function of an outcome of the comparison.   
     
     
       15. The method as defined in claim 14, further comprising granting the initial right of access as a function of the outcome of comparison on a condition that the random number or the pseudo-random number is greater than or equal to the access threshold value. 
     
     
       16. The method as defined in claim 14, further comprising transmitting the access information data as bit patterns. 
     
     
       17. The method as defined in claim 14, further comprising transmitting the information signals to the at least one subscriber station via at least one signaling channel. 
     
     
       18. The method as defined in claim 14, further comprising enabling the initial access to at least one communication channel of the at least one subscriber station as a function of an incidence of message traffic on at least one telecommunication channel. 
     
     
       19. The method of claim 14, wherein the access class information comprises access class bits. 
     
     
       20. The method of claim 14, wherein the access class information comprises at least four access class bits, whereby each access class bit indicates whether a respective privileged user class has an initial right of access to the random access channel independent of the received access threshold value bits. 
     
     
       21. The method of claim 14, wherein the access authorization data include one of sixteen possible access threshold values. 
     
     
       22. A subscriber station to which an initial access to a random access channel usable by a plurality of subscriber stations in common can be granted, comprising:
 means for receiving information signals;   an evaluation unit for asking when information signals with access authorization data comprising access class information for at least one prescribed privileged user class and access threshold value bits conveying an access threshold value are received, whether the access authorization data include an access threshold value for comparison of the access threshold value with a random number or a pseudo-random number, and whether an access authorization card associated with the subscriber station holds an affiliation of the subscriber station to a privileged user class and if so whether initial access to the random access channel is granted to the subscriber station by the access class information for this privileged user class irrespective of the access threshold value, and having determined that the subscriber station is either not associated with a privileged user class or is associated with a privileged user class for which initial access to the random access channel is not granted on the basis of the access class information irrespective of the access threshold value, for comparing the access threshold value with a random number or a pseudo-random number, and for ascertaining, as a function of an outcome of the comparison whether initial access of the subscriber station to the random access channel is enabled.   
     
     
       23. The subscriber station of claim 22, wherein the evaluation unit is further arranged to ascertain, as a function of the comparison whether the initial access of the subscriber station to the random access channel is enabled, if the subscriber station is associated with a privileged user class and initial access to the random access channel is not granted to the subscriber station on the basis of the access class information.