Reverse link data rate control method in mobile communication system

• US 7,486,620 B2
• Filed: 08/31/2004
• Issued: 02/03/2009
• Est. Priority Date: 09/01/2003
• Status: Expired due to Fees

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Seol, Jee Woong
• Primary Examiner(s): Pham; Chi H
• Assistant Examiner(s): BOAKYE, ALEXANDER O
• Application Number:
  US10/929,415
• Publication Number:
  US 20050047344A1
• Time in Patent Office: 1,617 Days
• Field of Search: 370/235, 370/229, 370/230, 370/329, 370/282, 370/253, 370/320, 370/317, 370/318, 370/252, 370/322, 370/331, 370/332, 370/342, 370/441, 370/458, 370/491, 370/395.4, 455/500, 455/507, 455/127.2
• US Class Current: 370/235
• CPC Class Codes: H04L 1/0002 by adapting the transmission rate
• CPC Class Codes: H04L 1/0025 Transmission of mode-switching indication
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04W 28/22 Negotiating communication rate
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 52/0206 in access points, e.g. base stations access point devices per se H04W88/08
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method of controlling a reverse link data rate, A method of controlling reverse link data rate in a mobile communication system supporting hybrid automatic retransmission request (HARQ) transmission is provided, by which a single grant message is transmitted via a forward grant channel to control a reverse link data rate of a plurality of subchannels of a reverse packet data channel. The method includes steps of generating rate control information for determining a data rate for transmission by a mobile station via a reverse traffic channel; and transmitting to the mobile station a message including the generated rate control information and subchannel information, the message corresponding to a series of subchannel transmissions to which the determined data rate will be applied.

Claims

1. A method of controlling reverse link data rate in a mobile communication system supporting hybrid automatic retransmission request (HARQ) transmission, the method comprising:

generating rate control information to be used for a mobile station to determine a data rate for transmission via a reverse traffic channel; and

transmitting to the mobile station a message including the generated rate control information and subchannel information, the subchannel information including a duration indicator which indicates a number of subchannels on the reverse traffic channel to which the generated rate control information is applicable, wherein the generated rate control information is to be applied to a plurality of subchannels.

2. The method of claim 1, wherein the subchannel information comprises a predetermined number of bits of varying place value, each place value indicative of an applicability of the generated rate control information to a subchannel corresponding to the place value.

3. The method of claim 1, wherein the message further includes a flag indicating whether the mobile station is to follow the subchannel information.

4. The method of claim 1, wherein the reverse traffic channel is a reverse packet data channel.

5. The method of claim 1, wherein the message is transmitted via a forward grant channel.

6. The method of claim 5, wherein the message is a grant message.

7. The method of claim 1, wherein the rate control information is a maximum traffic-to-pilot power ratio.

8. A method of controlling reverse link data rate in a mobile communication system supporting hybrid automatic retransmission request (HARQ) transmission, the method comprising:

receiving a message including rate control information for transmission on a reverse traffic channel and subchannel information, subchannel information including a duration indicator which indicates a number of subchannels on the reverse traffic channel to which the generated rate control information is applicable, wherein the generated rate control information is to be applied to a plurality of subchannels;

determining, based on the rate control information, a data rate for the plurality of subchannels on the reverse traffic channel; and

transmitting reverse link data at the determined data rate via one of the plurality of subchannels.

9. The method of claim 8, wherein the subchannel information comprises a predetermined number of bits of varying place value, each place value indicative of an applicability of the rate control information to a subchannel corresponding to the place value.

10. The method of claim 8, wherein the message further includes a flag indicating whether the mobile station is to follow the subchannel information.

11. The method of claim 8, wherein the reverse traffic channel is a reverse packet data channel.

12. The method of claim 8, wherein the message is received via a forward grant channel.

13. The method of claim 12, wherein the message is a grant message.

14. The method of claim 8, wherein the rate control information is a maximum traffic-to-pilot power ratio.