COMMUNICATION SYSTEM WITH IMPROVED MEDIUM ACCESS CONTROL SUB-LAYER
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Abstract
A communication system which has a plurality of mobile terminals and a base station, each of the mobile terminals and/or base station comprising a medium access control sub-layer, upper layers of the medium access control sub-layer, and a lower layer of the medium access control sub-layer, wherein the medium access control sub-layer is configured to perform self-basic functions in response to basic function execution requests or functions associated with the upper layers or lower layer in response to requests therefrom. According to the present invention, the communication system can provide a compatible multimedia communication service even if an originating terminal and a terminating terminal employ different communication manners, they are available from different manufacturers or they are operated by different communication service operators.
94 Citations
27 Claims
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1-13. -13. (canceled)
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14. A method for updating system information in a mobile terminal of a wireless communication system, the method comprising:
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receiving a message related to system information from a network, the message comprising a system information identifier;
comparing the system information identifier to a stored identifier, wherein the stored identifier is related to system information currently stored in the mobile terminal; and
determining whether to use the system information currently stored in the mobile terminal according to a result of the comparison. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A method for updating system information in a mobile terminal of a wireless communication system, the method comprising:
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transmitting a message related to system information to a mobile terminal, the message comprising a system information identifier, wherein the mobile terminal compares the system information identifier to an identifier stored in the mobile terminal, the stored identifier related to system information currently stored in the mobile terminal, wherein the mobile terminal determines whether to use the system information currently stored in the mobile terminal according to a result of the comparison. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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Specification