Method for branching data in mobile communication terminal
First Claim
1. A method of performing data communication between a mobile station and a network, each having a medium access control (MAC) layer, the method comprising:
- mapping a dedicated control channel (DCCH), which is a logical channel, to at least two transport channels for a MAC layer protocol; and
mapping a dedicated traffic channel (DTCH), which is a logical channel, to said at least two transport channels for the MAC layer protocol,providing, during data transmission mode, a MAC protocol data unit (PDU) to be transmitted to a receiving side, the MAC PDU having a header and data, the header including information indicative of a logical channel type which indicates a logical channel through which the data is transferred,wherein the DCCH and the DTCH are located between a radio link control (RLC) layer and the MAC layer, and said at least two transport channels are located between the MAC layer and a physical layer.
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Abstract
A method for branching data in a mobile communication terminal to perform data communication between a mobile station and a network which have media access control sublayers. In a data sending mode, each of the media access control sublayers of the mobile station and network attaches logical channel types based on traffic characteristic information and a radio bearer status to a media access control header contained in data to be sent. Then, each of the media access control sublayers branches the data to be sent, to transport channels corresponding to the attached logical channel types. In a data receiving mode, each of the media access control sublayers determines logical channels corresponding to logical channel types of a media access control header contained in received data. Then, each of the media access control sublayers branches the received data to the determined logical channels. Each of the media access control sublayers performs mapping and multiplexing/demultiplexing between logical channels and transport channels according to traffic characteristics to branch data. Therefore, it is possible to efficiently provide various multimedia and packet services.
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Citations
16 Claims
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1. A method of performing data communication between a mobile station and a network, each having a medium access control (MAC) layer, the method comprising:
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mapping a dedicated control channel (DCCH), which is a logical channel, to at least two transport channels for a MAC layer protocol; and mapping a dedicated traffic channel (DTCH), which is a logical channel, to said at least two transport channels for the MAC layer protocol, providing, during data transmission mode, a MAC protocol data unit (PDU) to be transmitted to a receiving side, the MAC PDU having a header and data, the header including information indicative of a logical channel type which indicates a logical channel through which the data is transferred, wherein the DCCH and the DTCH are located between a radio link control (RLC) layer and the MAC layer, and said at least two transport channels are located between the MAC layer and a physical layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for performing data communication in a mobile communication system, the apparatus having a medium access control (MAC) layer, the apparatus comprising:
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means for mapping a dedicated control channel (DCCH), which is a logical channel, to at least two transport channels for a MAC layer protocol; and means for mapping a dedicated traffic channel (DTCH), which is a logical channel, to said at least two transport channels for the MAC layer protocol, means for providing, during data transmission mode, a MAC protocol data unit (PDU) to be transmitted to a receiving side, the MAC PDU having a header and data, the header including information indicative of a logical channel type which indicates a logical channel through which the data is transferred, wherein the DCCH and the DTCH are located between a radio link control (RLC) layer and the MAC layer, and said at least two transport channels are located between the MAC layer and a physical layer. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification