APPARATUS AND METHOD FOR TRANSMITTING UPLINK DATA IN BROADBAND WIRELESS COMMUNICATION SYSTEM

• US 20080031128A1
• Filed: 08/02/2007
• Published: 02/07/2008
• Est. Priority Date: 08/03/2006
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Jang, Jae-Hyuk, Kim, Nam-Gi, Cho, Min-Hee, Son, Jung-Je
• Application Number:
  US11/832,846
• Publication Number:
  US 20080031128A1
• Time in Patent Office: Days
• US Class Current: 370/210
• CPC Class Codes: H04W 74/004 in the uplink, i.e. towards network
• CPC Class Codes: H04W 74/0833 Random access procedures, e.g. with 4-step access
• CPC Class Codes: H04W 74/0866 using a dedicated channel for access

Abstract

An apparatus and method for transmitting uplink data by a subscriber station in a broadband wireless communication system are provided. The apparatus includes a generator for generating a random access message including uplink bandwidth allocation request information when in an idle mode, a processor for determining an uplink bandwidth allocated by analyzing a bandwidth allocation message received from a base station, and a transmitter for transmitting data by using the allocated uplink bandwidth.

Claims

1. An apparatus of a subscriber station in a wireless communication system, the apparatus comprising:

a generator for generating a random access message including uplink bandwidth allocation request information when in an idle mode;

a processor for determining an uplink bandwidth allocated by analyzing a bandwidth allocation message received from a base station; and

a transmitter for transmitting data by using the allocated uplink bandwidth.

2. The apparatus of claim 1, wherein the random access message comprises a ranging request message for initial ranging.

3. The apparatus of claim 1, wherein the random access message comprises one or more pieces of information selected from a group consisting of information indicating whether the random access message is a handover message or not, information indicating whether the random access message is location information update message or not, and information indicating whether the random access message is an uplink bandwidth request message or not.

4. The apparatus of claim 3, wherein the random access message comprises Type Length Value (TLV) elements as follows:

Name Type Length Value Ranging 6 1 Bit #0;

HO indication Purpose Bit #1;

Location Update Request Indication Bit #2;

Short Data TX Request Bit #3-7;

Reserved

5. The apparatus of claim 1, wherein the random access message comprises bandwidth request information.

6. The apparatus of claim 5, wherein the random access message comprises TLV elements as follows:

Name Type Length Value Uplink 22 2 Bit #0-10;

Bandwidth Request Bandwidth Bit #11-15;

Reserved Request

7. The apparatus of claim 1, wherein the data comprises a Short Message Service (SMS) message.

8. The apparatus of claim 1, wherein a Connection IDentifier (CID) of the data comprises at least one of an initial ranging CID and a CID defined to transmit data in the idle mode.

9. The apparatus of claim 1, wherein the uplink data is transmitted using a fast ranging region among uplink control regions.

10. The apparatus of claim 1, wherein the processor determines the allocated uplink bandwidth by using a Media Access Control (MAC) address of the subscriber station.

11. The apparatus of claim 1, wherein the transmitter transforms sub-carrier data to an Orthogonal Frequency Division Multiplexing (OFDM) symbol through an Inverse Fast Fourier Transform (IFFT) operation.

12. An apparatus of a base station in a wireless communication system, comprising:

a processor for analyzing a random access message received from a subscriber station in an idle mode and determining an uplink bandwidth allocation request of the subscriber station;

a scheduler for allocating a bandwidth according to the uplink bandwidth allocation request; and

a receiver for receiving data from the subscriber station by using the allocated bandwidth.

13. The apparatus of claim 12, wherein the random access message comprises a ranging request message for initial ranging.

14. The apparatus of claim 12, wherein the random access message comprises one or more pieces of information selected from a group consisting of information indicating whether the random access message is a handover message or not, information indicating whether the random access message is location information update message or not, and information indicating whether the random access message is an uplink bandwidth request message or not.

15. The apparatus of claim 14, wherein the random access message comprises Type Length Value (TLV) elements as follows:

Name Type Length Value Ranging 6 1 Bit #0;

HO indication Purpose Bit #1;

Location Update Request Indication Bit #2;

Short Data TX Request Bit #3-7;

Reserved Value Bit #0-10;

Bandwidth Request Bit #11-15;

Reserved

16. The apparatus of claim 12, wherein the random access message comprises bandwidth request information.

17. The apparatus of claim 16, wherein the random access message comprises TLV elements as follows:

Name Type Length Value Uplink 22 2 Bit #0-10;

Bandwidth Request Bandwidth Bit #11-15;

Reserved Request

18. The apparatus of claim 12, wherein the data comprises a Short Message Service (SMS) message.

19. The apparatus of claim 12, wherein a Connection IDentifier (CID) of the data comprises at least one of an initial ranging CID and a CID defined to transmit data in the idle mode.

20. The apparatus of claim 12, wherein the scheduler allocates a fast ranging region for an uplink bandwidth allocation request by using the random access message.

21. The apparatus of claim 12, wherein the scheduler allocates an uplink bandwidth by using a Media Access Control (MAC) address of the subscriber station.

22. The apparatus of claim 12, wherein the receiver transforms an Orthogonal Frequency Division Multiplexing (OFDM) symbol to sub-carrier data through a Fast Fourier Transform (FFT) operation.

23. A method of transmitting data by a subscriber station in a wireless communication system, the method comprising:

generating a random access message including uplink bandwidth allocation request information when in an idle mode;

determining an uplink bandwidth allocated by analyzing a bandwidth allocation message received from a base station; and

transmitting data by using the allocated uplink bandwidth.

24. The method of claim 23, wherein the random access message comprises a ranging request message for initial ranging.

25. The method of claim 23, wherein the random access message comprises one or more pieces of information selected from a group consisting of information indicating whether the random access message is a handover message or not, information indicating whether the random access message is location information update message or not, and information indicating whether the random access message is an uplink bandwidth request message or not.

26. The method of claim 25, wherein the random access message comprises Type Length Value (TLV) elements as follows:

Name Type Length Value Ranging 6 1 Bit #0;

HO indication Purpose Bit #1;

Location Update Request Indication Bit #2;

Short Data TX Request Bit #3-7;

Reserved

27. The method of claim 23, wherein the random access message comprises bandwidth request information.

28. The method of claim 27, wherein the random access message comprises TLV elements as follows:

Name Type Length Value Uplink 22 2 Bit #0-10;

Bandwidth Request Bandwidth Bit #11-15;

Reserved Request

29. The method of claim 23, wherein the data comprises a Short Message Service (SMS) message.

30. The method of claim 23, wherein a Connection IDentifier (CID) of the data comprises at least one of an initial ranging CID and a CID defined to transmit data in the idle mode.

31. The method of claim 23, wherein the uplink data is transmitted using a fast ranging region among uplink control regions.

32. The method of claim 23, wherein the determining of the uplink bandwidth allocated comprises determining the allocated uplink bandwidth by using a Media Access Control (MAC) of the subscriber station.

33. The method of claim 23, wherein the transmitting of the data comprises transforming sub-carrier data to an Orthogonal Frequency Division Multiplexing (OFDM) symbol through an Inverse Fast Fourier Transform (IFFT) operation.

34. A method of receiving data by a base station in a wireless communication system, the method comprising:

determining an uplink bandwidth allocation request of a subscriber station by analyzing a random access message received from the subscriber station in an idle mode;

allocating a bandwidth according to the uplink bandwidth allocation request; and

receiving data from the subscriber station by using the allocated bandwidth.

35. The method of claim 34, wherein the random access message comprises a ranging request message for initial ranging.

36. The method of claim 34, wherein the random access message comprises one or more pieces of information selected from a group consisting of information indicating whether the random access message is a handover message or not, information indicating whether the random access message is location information update message or not, and information indicating whether the random access message is an uplink bandwidth request message or not.

37. The method of claim 36, wherein the random access message comprises Type Length Value (TLV) elements as follows:

Name Type Length Value Ranging 6 1 Bit #0;

HO indication Purpose Bit #1;

Location Update Request Indication Bit #2;

Short Data TX Request Bit #3-7;

Reserved

38. The method of claim 34, wherein the random access message comprises bandwidth request information.

39. The method of claim 38, wherein the random access message comprises TLV elements as follows:

Name Type Length Value Uplink 22 2 Bit #0-10;

Bandwidth Request Bandwidth Bit #11-15;

Reserved Request

40. The method of claim 34, wherein the data comprises a Short Message Service (SMS) message.

41. The method of claim 34, wherein a Connection IDentifier (CID) of the data comprises at least one of an initial ranging CID and a CID defined to transmit data in the idle mode.

42. The method of claim 34, wherein the determining of the uplink bandwidth allocation request comprises allocating a fast ranging region for an uplink bandwidth allocation request by using the random access message.

43. The method of claim 34, wherein the allocating of the bandwidth comprises allocating an uplink bandwidth by using a Media Access Control (MAC) address of the subscriber station.

44. The method of claim 34, wherein the receiving of the data comprises transforming an Orthogonal Frequency Division Multiplexing (OFDM) symbol to sub-carrier data through a Fast Fourier Transform (FFT) operation.