Processing data units for transfer over the same channel

• US 20040146067A1
• Filed: 11/04/2003
• Published: 07/29/2004
• Est. Priority Date: 11/05/2002
• Status: Abandoned Application

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Yi, Seung-June, Lee, Young-Dae, Lee, So-Young
• Application Number:
  US10/701,971
• Publication Number:
  US 20040146067A1
• Time in Patent Office: Days
• US Class Current: 370/474
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04L 69/26 Special purpose or proprietary protocols or architectures network applications for proprietary or special purpose networking environments H04L67/12
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365

Abstract

A radio communication scheme that newly defines a structure of a protocol data unit transmitted through a transport channel so as to avoid unnecessary redundant attachment of the terminal identifier (UE-ID) and the UE-ID type information. As only one terminal identifier (UE-ID) and UE-ID type exist in the header of protocol data unit being processed during one transmission time interval (TTI), the efficiency of overall data transmission is improved and waste of radio resources is remarkably reduced.

Claims

1. A method of processing data units by a terminal comprising:

concatenating two or more data units received from an upper layer for one transmission time interval (TTI); and

adding a single header to the concatenated data units.

2. The method of claim 1, wherein the upper layer is a MAC sub-layer managing resources dedicated to a specific terminal.

3. The method of claim 1, further comprising transmitting the header-added concatenated data units via an uplink channel.

4. The method of claim 3, wherein the uplink channel is a random access channel or a dedicated channel.

5. The method of claim 3, wherein the transmitting via the uplink channel occurs in-band.

6. The method of claim 1, wherein the header comprises terminal identifier information.

7. The method of claim 6, wherein the terminal identifier information comprises a terminal identification (UE-ID) and a terminal identification type (UE-ID type).

8. A method of processing data blocks by user equipment in radio communications, the method comprising:

detecting two or more data blocks sent from a higher layer entity;

performing concatenation on the detected data blocks to form a concatenated data block;

adding a single header to the concatenated data block; and

sending the header-added concatenated data block to a lower layer entity.

9. The method of claim 8, wherein the higher layer entity is a MAC entity managing resources dedicated to a specific terminal.

10. The method of claim 8, wherein the detecting step is performed for one transmission time interval (TTI).

11. The method of claim 8, wherein the steps are performed via an uplink channel.

12. The method of claim 11, wherein the uplink channel is a random access channel or a dedicated channel.

13. The method of claim 11, wherein the steps performed via the uplink channel occurs in-band.

14. The method of claim 8, wherein the header comprises terminal identifier information.

15. The method of claim 14, wherein the terminal identifier information comprises a terminal identification (UE-ID) and a terminal identification type (UE-ID type).

16. A method of processing data units comprising:

receiving a one or more service data units from an upper layer;

concatenating the received service data units to form a single medium access control payload;

adding a single header to the medium access control payload to form a medium access control protocol data unit; and

sending the medium access control protocol data unit to a lower layer.

17. The method of claim 16, wherein the upper layer is a MAC sub-layer managing resources dedicated to a specific terminal.

18. The method of claim 16, wherein the concatenating is performed on service data units received during a single transmission time interval (TTI).

19. The method of claim 16, wherein the steps are performed via an uplink channel.

20. The method of claim 19, wherein the uplink channel is a random access channel or a dedicated channel.

21. The method of claim 19, wherein the steps performed via the uplink channel occurs in-band.

22. The method of claim 16, wherein the header comprises terminal identifier information.

23. The method of claim 22, wherein the terminal identifier information comprises a terminal identification (UE-ID) and a terminal identification type (UE-ID type).

24. A medium access control (MAC) layer for a user equipment comprising:

a first entity to receive per transmission time interval (TTI) one or more of service data units from an upper layer; and

a second entity to concatenate two or more received service data units into a medium access control payload and to add a single header to the medium access control payload to form a medium access control protocol data unit, and then to send the medium access control protocol data unit to a lower layer.

25. The method of claim 24, wherein the MAC layer is a MAC sub-layer located below a MAC sub-layer managing resources dedicated to a specific terminal.

26. The method of claim 24, wherein the upper layer is a MAC sub-layer managing resources dedicated to a specific terminal.

27. A transmission system for mobile communications comprising:

a protocol layer for generating a protocol data unit (PDU) comprising a payload formed by concatenating two or more service data units (SDUS) and adding a single header thereto, and for transferring the protocol data unit (PDU) to a lower layer at a transmission time interval (TTI).

28. The system of claim 27, wherein the header includes information on an identifier of a terminal (UE-ID).

29. The system of claim 28, wherein the header additionally includes information on a type of the terminal identifier (UE-ID type).

30. The system of claim 27, wherein the header includes information on a logical channel.

31. The system of claim 27, wherein the PDU is transmitted to a lower layer through a common transport channel.

32. The system of claim 27, wherein the SDUs are transmitted from an upper layer through a dedicated logical channel.

33. The system of claim 27, wherein the SDUs have the same destination address.

34. The system of claim 27, wherein the protocol layer is a medium access control (MAC) sub-layer below a MAC sub-layer managing resources dedicated to a specific terminal.

35. The system of claim 34, wherein the MAC sub-layer is a MAC-c/sh sub-layer and the PDU is a MAC-c/sh PDU.

36. The system of claim 34, wherein the MAC sub-layer transmits only one PDU to a lower layer for a transmission time interval (TTI).

37. The system of claim 34, wherein the SDU is a MAC-c/sh service data unit (SDU).

38. The system of claim 27, wherein the PDU is transferred to a receiving end by using a physical layer service.

39. A protocol data transmission method in a mobile communication system comprising:

concatenating two or more service data units (SDUs) for a transmission time interval (TTI) to constitute a payload;

adding a header to the payload to generate a protocol data unit (PDU);

transferring the generated PDU to a lower layer; and

transmitting the transferred PDU to a receiving end via a physical layer service.

40. The method of claim 39, wherein the header includes information on an identifier of a terminal (UE-ID).

41. The method of claim 40, wherein the header additionally includes information on a type of the terminal identifier.

42. The method of claim 39, wherein the header includes information on a logical channel.

43. The method of claim 39, wherein the PDU is transferred to a lower layer via a common transport channel.

44. The method of claim 39, wherein the SDUs are transmitted from an upper layer through a dedicated logical channel.

45. The method of claim 39, wherein the SDUs have the same destination address.

46. The method of claim 39, wherein the SDU is a MAC-c/sh service data unit (SDU).

47. A receiving system of a mobile communication comprising:

a protocol layer for receiving one protocol data unit (PDU) from a lower layer at a transmission time interval (TTI), detecting a header from the received PDU, and disassembling a payload comprising protocol data units of a plurality of upper layers.

48. The method of claim 47, wherein the upper layers are MAC sub-layers managing resources dedicated to a specific terminal.

49. A protocol data transmission method in a mobile communication system comprising:

receiving one protocol data unit (PDU) from a lower layer at a transmission time interval (TTI);

separating a header and a payload from the received PDU;

disassembling the concatenated service data units (SDUs) of the payload; and

transferring the disassembled SDUs to an upper layer.

50. The method of claim 49, wherein the header includes information on an identifier of a terminal (UE-ID).

51. The method of claim 50, wherein the header additionally includes information on a type of the terminal identifier.

52. The method of claim 49, wherein if the header includes terminal identifier information, it is checked whether the terminal identifier is identical to an identifier of a terminal to which the protocol layer itself belongs to.

53. The method of claim 52, wherein if the two terminal identifiers are identical, the disassembled SDUs are respectively transferred to an upper layer entity that the header information indicates.

54. The method of claim 52, wherein if the two terminal identifiers are identical, the disassembled SDUs are transferred to an upper layer through a logical channel that the header information indicates.

55. The method of claim 52, wherein if the two terminal identifiers are not identical, the received PDU is discarded.