METHOD OF ALLOCATING RESOURCE AREA IN WIRELESS ACCESS SYSTEM

• US 20100246511A1
• Filed: 09/05/2008
• Published: 09/30/2010
• Est. Priority Date: 09/20/2007
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Lim, Jae Won, Kim, Jeong Ki, Ryu, Ki Seon, Youn, Ae Ran, Cho, Hee Jeong
• Granted Patent: US 9,084,248 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 1/00 Arrangements for detecting or preventing errors in the information received correcting synchronisation H04L7/00
• CPC Class Codes: H04L 1/1838 for semi-reliable protocols, e.g. for less sensitive applications such as streaming video buffer level management for video bitstream receiver H04N21/44004
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 65/65 Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
• CPC Class Codes: H04L 65/80 Responding to QoS
• 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
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A method of allocating a radio resource in a wireless access system is disclosed. The method includes receiving a control message associated with radio resource allocation for transmitting uplink data to the base station, wherein the control message comprises a first persistent uplink allocation information element comprising first resource allocation information associated with a first resource allocation region for transmitting the uplink data of a mobile station and transmitting an acknowledgment (ACK) message from the mobile station to the base station in response to successfully receiving the first persistent uplink allocation information element.

Claims

1. A method of allocating a radio resource in a wireless access system, the method comprising:

receiving a control message associated with radio resource allocation for transmitting uplink data to the base station, wherein the control message comprises a first persistent uplink allocation information element comprising first resource allocation information associated with a first resource allocation region for transmitting the uplink data of a mobile station; and

transmitting an acknowledgment (ACK) message from the mobile station to the base station in response to successfully receiving the first persistent uplink allocation information element.

2. The method of claim 1, further comprising:

transmitting the uplink data to the base station by the mobile station via the assigned first resource allocation region.

3. The method of claim 1, wherein the base station retransmits the first persistent uplink allocation information element if the ACK message is not received from the mobile station.

4. The method of claim 3, wherein the first persistent uplink allocation information is retransmitted after a predetermined number of frames after not receiving the ACK message.

5. The method of claim 1, wherein a payload size of the uplink data is fixed.

6. The method of claim 1, wherein the uplink data comprises an IP-based Voice over Internet Protocol (VoIP) data.

7. The method of claim 1, wherein the first resource allocation information comprises at least one of orthogonal frequency division multiplexing access (OFDMA) symbol offset, subchannel offset, and information of OFDMA slot.

8. The method of claim 1, wherein the first persistent uplink allocation information element further comprises first ACK information associated with ACK transmission region;

and

the ACK message is transmitted via an ACK transmission region which is indicated by the first ACK information.

9. The method of claim 1, wherein the first persistent uplink allocation information element further comprises a field for indicating whether the first resource allocation region is allocated or de-allocated.

10. The method of claim 1, further comprising:

receiving a second persistent uplink allocation information element comprising second resource allocation information associated with a second resource allocation region for transmitting the uplink data.

11. The method of claim 10, further comprising:

storing the second persistent uplink allocation information element; and

transmitting an acknowledgment (ACK) message from the mobile station to the base station in response to successfully receiving the second persistent uplink allocation information element.

12. The method of claim 11, further comprising:

transmitting the uplink data to the base station via the assigned second resource allocation region.

13. The method of claim 10, wherein the second persistent uplink allocation information element further comprises second ACK information associated with ACK transmission region;

and

the ACK message is transmitted via an ACK transmission region which is indicated by the second ACK information.

14. The method of claim 1, wherein the mobile station continues transmitting the uplink data to the base station via the first resource allocation region until a second persistent uplink allocation information element associated with using a second resource allocation region is received.

15. A method of allocating a radio resource in a wireless access system, the method comprising:

receiving a control message associated with radio resource allocation for receiving downlink data from the base station, wherein the control message comprises a first persistent downlink allocation information element comprising first resource allocation information associated with a first resource allocation region for receiving the downlink data from the base station; and

transmitting an acknowledgment (ACK) message from the mobile station to the base station in response to successfully receiving the first persistent downlink allocation information element.

17. The method of claim 15, wherein a payload size of the downlink data is fixed.

18. The method of claim 15, further comprising:

receiving a second persistent downlink allocation information element comprising second resource allocation information associated with a second resource allocation region for receiving downlink data.

19. The method of claim 18, further comprising:

storing the second persistent downlink allocation information element; and

transmitting an acknowledgment (ACK) signal from the mobile station to the base station in response to successfully receiving the second persistent downlink allocation information element.

20. The method of claim 19, further comprising:

receiving the downlink data from the base station via the assigned second resource allocation region.

21. The method of claim 15, wherein the first persistent downlink allocation information element further comprises ACK transmission region allocation information;

and

the ACK message is transmitted via an ACK transmission region which is indicated by the ACK transmission region allocation information.

22. The method of claim 21, wherein the first persistent downlink allocation information element further comprises a field for indicating whether the first resource allocation region is allocated or de-allocated.

23. The method of claim 15, wherein the mobile station continues receiving the downlink data from the base station via the first resource allocation region until a second persistent downlink allocation information element associated with using a second resource allocation region is received.

24. The method of claim 15, wherein the first resource persistent downlink allocation information comprises at least one of OFDMA symbol offset, subchannel offset, and information of OFDMA slot.

16. The method of claim 16, further comprising:

receiving the downlink data from the base station via the assigned first resource allocation region.

25. A method of allocating a radio resource in a wireless access system, the method comprising:

transmitting a control message associated with radio resource allocation for communicating data to a mobile station, wherein the control message comprises a first persistent allocation information element comprising first resource allocation information associated with a first resource allocation region for communicating the data; and

receiving an acknowledgment (ACK) message from the mobile station in response to successfully receiving the first persistent allocation information element.

26. The method of claim 25, further comprising:

communicating the data via the assigned first resource allocation region.

27. The method of claim 25, wherein a payload size of the data is fixed.

28. The method of claim 25, further comprising:

transmitting a second persistent allocation information element comprising second resource allocation information associated with a second resource allocation region for communicating the data.

29. The method of claim 28, further comprising:

storing the second persistent allocation information element; and

receiving an acknowledgment (ACK) signal from the mobile station in response to successfully receiving the second persistent allocation information element.

30. The method of claim 29, further comprising:

transmitting the data to the mobile station via the assigned second resource allocation region.

31. The method of claim 30, wherein the first persistent allocation information element further comprises ACK transmission region allocation information;

and

the ACK message is received via an ACK transmission region which is indicated by the ACK transmission region allocation information.

32. The method of claim 31, wherein the first persistent uplink allocation information further comprises a field for indicating whether the first resource allocation region is allocated or de-allocated.

33. The method of claim 25, wherein the base station continues communicating the data with the mobile station via the first resource allocation region until a second persistent allocation information element associated with using a second resource allocation region is transmitted to the mobile station.

34. The method of claim 25, wherein the first resource persistent downlink allocation information comprises at least one of OFDMA symbol offset, subchannel offset, and information of OFDMA slot.