Method for branching data in mobile communication terminal

• US 8,000,311 B2
• Filed: 11/14/2008
• Issued: 08/16/2011
• Est. Priority Date: 10/01/1998
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Hwang, In Tae, Ok, Myoung Jin, Shin, Sang Rim
• Primary Examiner(s): Tran; Pablo N
• Application Number:
  US12/271,171
• Publication Number:
  US 20090092121A1
• Time in Patent Office: 1,005 Days
• Field of Search: 370/348, 370/338, 370/310, 370/352, 370/353, 370322-324, 370384-388, 370/376, 370334-335, 370382-383, 370329-332, 370/442, 455/452.1, 455450-453, 455/445, 455/510, 455/511, 455 62- 633, 455/67.11, 455/509, 455/426.1
• 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, the method comprising:

receiving upper layer data through a plurality of logical channels from a radio link control (RLC) layer;

generating at least one medium access control protocol data unit (MAC PDU) by attaching at least one medium access control (MAC) header to the upper layer data transferred from the RLC layer through the plurality of logical channels, the at least one 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 physical layer through a transport channel to which the plurality of logical channels are mapped, wherein the plurality of logical channels are located between the RLC layer and the MAC layer, and wherein the transport channel is located between the MAC layer and the physical layer.

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

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

5. The method of claim 4, wherein the plurality of logical channels include a dedicated logical channel.

6. The method of claim 5, wherein the dedicated logical channel is one of a dedicated control channel (DCCH) and a dedicated traffic channel (DTCH).

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

8. The method of claim 1, wherein the plurality of logical channels include a dedicated control channel (DCCH) and a dedicated traffic channel (DTCH).

9. The method of claim 1, wherein the sending entity is a network communicating with at least one mobile terminal in the mobile communications system.

10. The method of claim 1, wherein the sending entity is a mobile terminal communicating with a network in the mobile communications system.

11. An apparatus for processing data to be transmitted to a receiving side in a mobile communications system, the apparatus comprising:

a radio link control (RLC) layer;

a medium access control (MAC) layer; and

a physical layer,

wherein the MAC layer is adapted to;

receive upper layer data through a plurality of logical channels from the RLC layer;

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

transfer the at least one MAC PDU to the physical layer through a transport channel to which the plurality of logical channels are mapped, wherein the plurality of logical channels are located between the RLC layer and the MAC layer, and wherein the transport channel is located between the MAC layer and the physical layer.

12. The apparatus of claim 11, wherein the transport channel is a forward access channel (FACH) which is a downlink channel.

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

14. The apparatus of claim 11, wherein the transport channel is a random access channel (RACH) which is an uplink channel.

15. The apparatus of claim 14, wherein the plurality of logical channels include a dedicated logical channel.

16. The apparatus of claim 15, wherein the dedicated logical channel is one of a dedicated control channel (DCCH) and a dedicated traffic channel (DTCH).

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

18. The apparatus of claim 11, wherein the plurality of logical channels include a dedicated control channel (DCCH) and a dedicated traffic channel (DTCH).

19. The apparatus of claim 11, wherein the apparatus is a network communicating with at least one mobile terminal in the mobile communications system.

20. The apparatus of claim 11, wherein the apparatus is a mobile terminal communicating with a network in the mobile communications system.