Apparatus and method for forming and ascertaining system information from system information medium access control protocol messages

Abstract

Apparatus and method for forming system information medium access control protocol messages, wherein system information data packets are received from a logical channel, with at least some of the packets having associated prioritization information which is used to indicate the priority of the respective packets, and the system information medium access control protocol messages are formed using at least some of the packets from the logical channel taking into account the prioritization information. Also, apparatus and method for ascertaining system information from system information medium access control protocol messages, wherein a first system information medium access control protocol message is received from a transport channel which contains a statement indicating how a second system information medium access control protocol message is transmitted, the statement is ascertained from the first system information medium access control protocol message, and the second system information medium access control protocol message is received taking into account the ascertained statement.

1 . A method for the computer-aided formation of system information medium access control protocol messages, comprising: 
 receiving system information data packets from at least one logical channel, with at least some of the system information data packets having associated prioritization information which is used to indicate the priority of the respective system information data packets; and    forming the system information medium access control protocol messages using at least some of the system information data packets from the logical channel taking into account the prioritization information.    
   
   
       2 . The method according to  claim 1 , further comprising mapping the system information medium access control protocol messages onto at least one transport channel.  
   
   
       3 . The method according to  claim 1 , further comprising receiving system information data packets from at least one logical broadcast channel.  
   
   
       4 . The method according to  claim 2 , further comprising mapping the system information medium access control protocol messages onto at least one broadcast transport channel.  
   
   
       5 . The method according to  claim 2 , further comprising mapping the system information medium access control protocol messages onto a plurality of broadcast transport channels.  
   
   
       6 . The method according to  claim 1 , further comprising grouping the received system information data packets into at least a first group and a second group in line with the prioritization information, 
 the system information data packets in the first group having at least a first system information medium access control protocol message formed for them, and the system information data packets in the second group having at least a second system information medium access control protocol message formed for them.    
   
   
       7 . The method according to  claim 6 , 
 the first system information medium access control protocol message containing system information which is updated after a prescribable time interval has elapsed; and    the second system information medium access control protocol message containing system information which is updated, needs to be updated, or loses its validity before the prescribable time interval has elapsed.    
   
   
       8 . The method according to  claim 7 , 
 the first system information medium access control protocol message containing at least some of the following system information: PLMN identity, radio cell identity, configuration of system-related timers and constants, configuration of the physical joint radio resources, and information for performing measurements, and    the second system information medium access control protocol message containing at least some of the following system information: interference situation on the uplink, transmission parameters for random access channels in the uplink, and time validity of the dynamic system information.    
   
   
       9 . The method according to  claim 1 , further comprising transmitting the system information medium access control protocol messages using a multiple access method.  
   
   
       10 . The method according to  claim 9 , further comprising transmitting the system information medium access control protocol messages using a frequency-division multiple access method.  
   
   
       11 . The method according to  claim 10 , further comprising transmitting the system information medium access control protocol messages using a multiple carrier frequency-division multiple access method.  
   
   
       12 . The method according to  claim 10 , further comprising transmitting the system information medium access control protocol messages using a frequency hopping multiple access method.  
   
   
       13 . The method according to  claim 12 , further comprising transmitting the system information medium access control protocol messages using an orthogonal frequency-division multiple access method.  
   
   
       14 . The method according to  claim 10 , further comprising transmitting the system information medium access control protocol messages using a frequency division multiple access/time-division multiple access method.  
   
   
       15 . The method according to claims  6 , further comprising forming the first system information medium access control protocol message such that it contains a statement indicating how the second system information medium access control protocol message is transmitted.  
   
   
       16 . The method according to  claim 15 , further comprising forming the first system information medium access control protocol message such that it contains a statement indicating the frequency band in which the second system information medium access control protocol message is transmitted.  
   
   
       17 . The method according to  claim 16 , further comprising forming the first system information medium access control protocol message such that it contains a statement indicating the frequency band and the time slot in which the second system information medium access control protocol message is transmitted.  
   
   
       18 . The method according to  claim 1 , being used in a cellular mobile radio communication system.  
   
   
       19 . The method according to  claim 18 , being used in a 3GPP mobile radio communication system or in a 3GPP2 mobile radio communication system.  
   
   
       20 . The method according to  claim 18 , being used in a UMTS mobile radio communication system, a CDMA2000 mobile radio communication system, or a FOMA mobile radio communication system.  
   
   
       21 . The method according to  claim 3 , further comprising receiving the system information data packets from at least one Broadcast Control Channel channel.  
   
   
       22 . The method according to  claim 3 , further comprising mapping the system information medium access control protocol message onto at least one Broadcast Channel transport channel.  
   
   
       23 . A method for the computer-aided ascertainment of system information from system information medium access control protocol messages, comprising: 
 receiving a first system information medium access control protocol message from a transport channel which contains a statement indicating how a second system information medium access control protocol message is transmitted;    ascertaining the statement from the first system information medium access control protocol message; and    receiving the second system information medium access control protocol message taking into account the ascertained statement.    
   
   
       24 . A medium access control unit for forming system information medium access control protocol messages, comprising: 
 a reception unit receiving system information data packets from at least one logical channel, at least some of the system information data packets having associated prioritization information which is used to indicate the priority of the respective system information data packets; and    an encoding unit forming the system information medium access control protocol messages using at least some of the system information data packets from the logical channel taking into account the prioritization information.    
   
   
       25 . A mobile radio communication device having a medium access control unit according to  claim 24 .  
   
   
       26 . The mobile radio communication device according to  claim 25 , being set up as a mobile radio base station.  
   
   
       27 . A medium access control unit for ascertaining system information from system information medium access control protocol messages, comprising: 
 a reception unit receiving a first system information medium access control protocol message from a transport channel, which message contains a statement indicating how a second system information medium access control protocol message is transmitted; and    an ascertainment unit ascertaining the statement from the first system information medium access control protocol message,    the reception unit changing the reception characteristics based on the ascertained statement in order to receive the second system information medium access control protocol message.    
   
   
       28 . A mobile radio communication device having a medium access control unit according to  claim 27 .  
   
   
       29 . The mobile radio communication device according to  claim 28 , being set up as a mobile radio communication terminal.  
   
   
       30 . A computer program element for forming system information medium access control protocol messages, said computer program element, when executed by a processor, performing a method comprising: 
 receiving system information data packets from at least one logical channel, at least some of the system information data packets having associated prioritization information which is used to indicate the priority of the respective system information data packets; and    forming the system information medium access control protocol messages using at least some of the system information data packets from the logical channel taking into account the prioritization information.    
   
   
       31 . A computer program element for ascertaining system information from system information medium access control protocol messages, said computer program element, when executed by a processor, performing a method comprising: 
 receiving a first system information medium access control protocol message from a transport channel which contains a statement indicating how a second system information medium access control protocol message is transmitted;    ascertaining the statement from the first system information medium access control protocol message; and    receiving the second system information medium access control protocol message taking into account the ascertained statement.    
   
   
       32 . A medium access control unit for forming system information medium access control protocol messages, comprising: 
 a reception means for receiving system information data packets from at least one logical channel, at least some of the system information data packets having associated prioritization information which is used to indicate the priority of the respective system information data packets; and    an encoding means for forming the system information medium access control protocol messages using at least some of the system information data packets from the logical channel taking into account the prioritization information.    
   
   
       33 . A medium access control unit for ascertaining system information from system information medium access control protocol messages, comprising: 
 a reception means for receiving a first system information medium access control protocol message from a transport channel, which message contains a statement indicating how a second system information medium access control protocol message is transmitted; and    an ascertainment means for ascertaining the statement from the first system information medium access control protocol message,    wherein the reception means changes the reception characteristics based on the ascertained statement in order to receive the second system information medium access control protocol message.