Mobile telephone, apparatus, method and computer implementable instructions product

Abstract

A communication system ( 100 ) is disclosed which uses system frames of a first and a second type. In a system frame of the first type communication with a mobile telephone ( 3 ) is subject to a restriction and in a system frame of the second type communication with said mobile telephone ( 3 ) is not subject to said restriction. It is determined whether or not to communicate with said mobile telephone ( 3 ), in a current system frame, in dependence on whether the current system frame is a first type of system frame or a second type of system frame.

1 . A mobile telephone for communicating with a network entity in a communication system which uses a plurality of system frames wherein each system frame is subdivided in the time domain into a plurality of radio frames, the mobile telephone comprising:
 a receiver that receives at least one signalling message indicative of a communication being initiated for said mobile telephone;   a first determining unit that determines whether a current system frame is a first type of system frame in which communication with said mobile telephone is subject to a restriction or a second type of system frame in which communication with said mobile telephone is not subject to said restriction;   a second determining unit that determines whether or not to listen for a communication from said network entity, in said current system frame, in dependence on whether the current system frame is determined to be a first type of system frame or a second type of system frame; and   a listening unit that listens for a communication from said network entity based on whether or not said first determining unit determines the current system frame to be a first type of system frame.   
     
     
         2 . The mobile telephone according to  claim 1 , wherein said second determining unit is operable to determine that said receiver should not listen for a communication from said network entity in said first type of system frame. 
     
     
         3 . The mobile telephone according to  claim 1 , wherein in said second type of system frame communication with said mobile telephone is subject to a power saving cycle in which communications with said mobile telephone are restricted in at least one radio frame. 
     
     
         4 . The mobile telephone according to  claim 3 , wherein said power saving cycle comprises a first period of at least one radio frame in which communication with said mobile telephone is restricted and a second period of at least one radio frame in which communication with said mobile telephone is allowed. 
     
     
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         22 . An apparatus for scheduling communications between a mobile telephone and a network entity in a communication system which uses a plurality of system frames wherein each system frame is subdivided in the time domain into a plurality of radio frames, the apparatus comprising:
 a first determining unit that determines whether a current system frame is a first type of system frame in which communication with said mobile telephone is subject to a restriction or a second type of system frame in which communication with said mobile telephone is not subject to said restriction; and   a second determining unit that determines whether or not to communicate with said mobile telephone, in said current system frame, in dependence on whether the current system frame is determined to be a first type of system frame or a second type of system frame.   
     
     
         23 . The apparatus according to  claim 22 , wherein said a first determining unit is operable to determine that said apparatus should not communicate with said mobile telephone in said first type of system frame. 
     
     
         24 . The apparatus according to  claim 22 , wherein in said second type of system frame communication with said mobile telephone is subject to a power saving cycle in which communications with said mobile telephone are restricted in at least one radio frame. 
     
     
         25 . The apparatus according to  claim 24 , wherein said power saving cycle comprises a first period of at least one radio frame in which communication with said mobile telephone is restricted and a second period of at least one radio frame in which communication with said mobile telephone is allowed. 
     
     
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         27 . The apparatus according to  claim 25 , wherein said apparatus is operable to send paging and/or system information messages to said mobile telephone during said second period of at least one radio frame. 
     
     
         28 . The apparatus according to any of  claim 22 , further comprising a obtaining unit that obtains information identifying a base system frame and information identifying at least one of a first set of system frames of the first type and a second set of system frames of the second type and wherein said first determining unit that is operable to determine said current system frame to be said first type of system frame or to be said second type of system frame in dependence on said information identifying said base system frame and said information identifying said at least one of said first and second set of system frames. 
     
     
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         58 . A mobile telephone for communicating with a network entity in a communication system which uses a plurality of system frames wherein each system frame comprises a plurality of radio frames, the mobile telephone comprising a processor and transceiver, wherein:
 the processor is configured to i) determine whether a current system frame is a first type of system frame in which communication with said mobile telephone is subject to a restriction or a second type of system frame in which communication with said mobile telephone is not subject to said restriction; and ii) determine whether or not to listen for a communication from said network entity, in said current system frame, in dependence on whether the current system frame is determined to be a first type of system frame or a second type of system frame; and   the transceiver is configured to listen for a communication from said network entity when it is determined that the current system frame is a first type of system frame.   
     
     
         59 . An apparatus for scheduling communications between a mobile telephone and a network entity in a communication system which uses a plurality of system frames wherein each system frame comprises a plurality of radio frames, the apparatus comprising:
 a processor configured to i) determine whether a current system frame is a first type of system frame in which communication with said mobile telephone is subject to a restriction or a second type of system frame in which communication with said mobile telephone is not subject to said restriction; and ii) determine whether or not to communicate with said mobile telephone, in said current system frame, in dependence on whether the current system frame is determined to be a first type of system frame or a second type of system frame.   
     
     
         60 . A method performed by a mobile telephone for communicating with a network entity in a communication system which uses a plurality of system frames wherein each system frame is subdivided in the time domain into a plurality of radio frames, the method comprising:
 determining whether a current system frame is a first type of system frame in which communication with said mobile telephone is subject to a restriction or a second type of system frame in which communication with said mobile telephone is not subject to said restriction;   determining whether or not to listen for a communication from said network entity, in said current system frame, in dependence on whether the current system frame is determined to be a first type of system frame or a second type of system frame; and   listening for a communication from said network entity when it is determined that the current system frame is a first type of system frame.   
     
     
         61 . A method performed by an apparatus for scheduling communications between a mobile telephone and a network entity in a communication system which uses a plurality of system frames wherein each system frame is subdivided in the time domain into a plurality of radio frames, the method comprising:
 determining whether a current system frame is a first type of system frame in which communication with said mobile telephone is subject to a restriction or a second type of system frame in which communication with said mobile telephone is not subject to said restriction; and   determining whether or not to communicate with said mobile telephone, in said current system frame, in dependence on whether the current system frame is determined to be a first type of system frame or a second type of system frame.   
     
     
         62 . A computer implementable instructions product comprising computer implementable instructions for causing a programmable communications device to perform the method according to  claim 60 .