METHOD OF UTILIZING RESOURCES EFFICIENTLY IN A REVERSE LINK TRANSMISSION

• US 20080084841A1
• Filed: 07/06/2007
• Published: 04/10/2008
• Est. Priority Date: 07/07/2006
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Sun, Li-Hsiang, Kim, Hobin, Kim, Sang G., Wang, Shu, Yoon, Young, Lee, Suk
• Granted Patent: US 9,008,069 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 1/0002 by adapting the transmission rate
• CPC Class Codes: H04L 1/0007 by modifying the frame length
• CPC Class Codes: H04L 1/0009 by adapting the channel coding H04L1/1812 takes precedence
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/0078 Avoidance of errors by organising the transmitted data in a format specifically designed to deal with errors, e.g. location forward error control, e.g. FEC, CRC H04L1/004; adaptive formatting H04L1/0006; mappings H04L27/00
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/1268 of uplink data flows

Abstract

A method of transmitting data by at least one access terminal (AT) in a wireless communication system is disclosed. More specifically, the method includes ceasing all transmissions by the at least one AT during a duration corresponding to a duration used by an access node (AN) to transmit a superframe preamble, wherein the superframe comprises a plurality of physical frames.

Claims

1. A method of transmitting data by at least one access terminal (AT) in a wireless communication system, the method comprising ceasing all transmissions by the at least one AT during a duration corresponding to a duration used by an access node (AN) to transmit a superframe preamble, wherein the superframe comprises a plurality of physical frames.

2. The method of claim 1, wherein each of the plurality of physical frames comprises a plurality of orthogonal frequency division multiplexing (OFDM) symbols.

3. The method of claim 1, wherein the transmission is ceased periodically.

4. The method of claim 3, wherein the periodic ceasing of the transmission is informed by a system parameter.

5. The method of claim 1, further comprising transmitting a request message from the AT during the duration corresponding to the duration used by the AN to transmit the superframe preamble.

6. The method of claim 1, further comprising transmitting a channel quality feedback from the AT during the duration corresponding to the duration used by the AN to transmit the superframe preamble.

7. The method of claim 1, further comprising transmitting a multi input, multi output (MIMO) channel quality feedback from the AT during the duration corresponding to the duration used by the AN to transmit the superframe preamble.

8. The method of claim 1, further comprising transmitting a beamforming channel quality feedback from the AT during the duration corresponding to the duration used by the AN to transmit the superframe preamble.

9. The method of claim 1, further comprising transmitting a sub-band channel feedback from the AT during the duration corresponding to the duration used by the AN to transmit the superframe preamble.

10. The method of claim 1, wherein the transmissions are ceased periodically according to a command from the AN.

11. The method of claim 1, further comprising transmitting any one of a reverse link acknowledgement channel (R-ACKCH), reverse link data channel (R-DCH), or reverse link code division multiple access (CDMA) control segment during a duration in which transmission is not ceased.

12. A method of measuring data for load control by an access node (AN) in a wireless communication system, the method comprising measuring noise variance during a duration in which all transmissions from at least one access terminal (AT) is ceased and the duration corresponds to a duration used by the AN to transmit a superframe preamble, wherein the superframe comprises a plurality of physical frames.

13. The method of claim 12, wherein the transmission is ceased periodically.

14. The method of claim 12, further comprising transmitting a command to at least one AT to cease transmission periodically.

15. The method of claim 12, wherein each of the plurality of physical frames comprises a plurality of orthogonal frequency division multiplexing (OFDM) symbols.

16. The method of claim 12, further comprising receiving a request message from the AT during a duration corresponding to the duration of the used by the AN to transmit the superframe preamble.

17. The method of claim 12, further comprising receiving a multi input, multi output (MIMO) channel quality feedback from the AT during a duration corresponding to the duration used by the AN to transmit the superframe preamble.

18. The method of claim 12, further comprising receiving a beamforming channel quality feedback from the AT during a duration corresponding to the duration used by the AN to transmit the superframe preamble.

19. The method of claim 12, further comprising receiving a sub-band channel feedback from the AT during a duration corresponding to the duration used by the AN to transmit the superframe preamble.

20. A structure of a superframe, comprising a plurality of reverse link (RL) physical frames which correspond to a plurality of forward link (FL) physical frames and a preamble, wherein a first part of a RL physical frame corresponding to the FL preamble is devoid of data and a second part of RL physical frames corresponding to other FL physical frames are occupied with data.