Method for branching data in mobile communication terminal

• US 20070127432A1
• Filed: 01/31/2007
• Published: 06/07/2007
• Est. Priority Date: 10/01/1998
• Status: Active Grant

• Current Assignee: 3G Licensing S.A. (Fineur International S.A.)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Hwang, In, Shin, Sang, Ok, Myoung
• Granted Patent: US 7,782,833 B2
• Time in Patent Office: Days
• US Class Current: 370/348
• CPC Class Codes: H04W 28/065 using assembly or disassembly of packets
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management

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.

Claims

1. A method of processing data in a medium access control (MAC) layer of a sending entity in a mobile communications system, comprising the steps of:

receiving upper layer data through a plurality of logical channels from at least one upper layer;

generating at least one medium access control protocol data unit (MAC PDU) by attaching a medium access control (MAC) header to the upper layer data transferred from each of the logical channels, the MAC header including information indicative of a type of a logical channel through which the upper layer data is transferred; and

transferring the at least one MAC PDU to a lower layer through a transport channel to which the plurality of logical channels are mapped.

2. The method of claim 1, wherein the transport channel is a forward access channel (FACH) which is a downlink channel.

3. The method of claim 1, wherein the transport channel is a random access channel (RACH) which is an uplink channel.

4. The method of claim 1, wherein the transport channel is a downlink shared channel (DSCH).

5. The method of claim 2, wherein the plurality of logical channels include a common control channel (CCCH) and a dedicated control channel (DCCH).

6. The method of claim 3, wherein the plurality of logical channels include a common control channel (CCCH) and a dedicated control channel (DCCH).

7. The method of claim 6, wherein the dedicated logical channel is one of a dedicated control channel (DCCH) and a dedicated traffic channel (DTCH).

8. The method of claim 4, wherein the plurality of logical channels include a dedicated control channel (DCCH) and a dedicated traffic channel (DTCH).

9. The method of claim 5 or 8, wherein the sending entity is a network communicating with at least one mobile terminal in the mobile communications system.

10. The method of claim 6 or 7, wherein the sending entity is a mobile terminal communicating with a network in the mobile communications system.

11. A method of processing data in a medium access control (MAC) layer of a receiving entity in a mobile communications system, comprising the steps of:

receiving a plurality of medium access control protocol data units (MAC PDUs) from a lower layer through a transport channel to which a plurality of logical channels are mapped, each MAC PDU having a header including information indicative of a logical channel type; and

transferring data of each medium access control protocol data unit (MAC PDU) to an upper layer through one of the plurality of logical channels based on the information indicative of the logical channel type of each MAC header.

12. The method of claim 11, wherein the transport channel is a forward access channel which is a downlink channel.

13. The method of claim 11, wherein the transport channel is a random access channel (FACH) which is a uplink channel.

14. The method of claim 11, wherein the transport channel is a downlink shared channel (DSCH).

15. The method of claim 12, wherein the plurality of logical channels include a common control channel (CCCH) and a dedicated control channel (DCCH).

16. The method of claim 13, wherein the plurality of logical channels include a common control channel (CCCH) and a dedicated control channel (DCCH).

17. The method of claim 16, wherein the dedicated logical channel is one of a dedicated control channel (DCCH) and a dedicated traffic channel (DTCH).

18. The method of claim 14, wherein the plurality of logical channels include a dedicated control channel (DCCH) and a dedicated traffic channel (DTCH).

19. The method of claim 15 or 18, wherein the receiving entity is a mobile terminal communicating with a network in the mobile communications system.

20. The method of claim 16 or 17, wherein the receiving entity is a network communicating with at least one mobile terminal in the mobile communications system.