Method and apparatus for a reverse link supplemental channel scheduling

• US 20030210664A1
• Filed: 05/10/2002
• Published: 11/13/2003
• Est. Priority Date: 05/10/2002
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Ho, Sai Yiu Duncan, Sinnarajah, Ragulan, Achour, Baaziz
• Granted Patent: US 7,480,270 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A method and apparatus provide for scheduling reverse link transmission for a mobile station in a timely manner. A base station (101) may transmit on a forward link high rate channel and a forward link low rate channel to a mobile station during a common time slot. The high rate and low rate channels may be respectively the F-PDCH and the F-PDCCH. The base station may transmit a reverse link transmission scheduling information on the low rate channel. The mobile station may schedule transmission on the reverse link channel, such as R-SCH, based on the data received on the low rate channel. Since the low rate channel has only scheduling data (16 bits) and the high rate channel may have no data (null data) at all, the base station may decide to transmit the reverse link scheduling information to the mobile station very quickly on the forward link.

Claims

1. A method for transmitting a reverse link supplemental channel scheduling information for a mobile station in a communication system, comprising:

incorporating said reverse link supplemental channel scheduling information onto a forward link packet data control channel;

transmitting said forward link packet data control channel and a forward link packet data channel during a common burst transmission to said mobile station.

2. The method as recited in claim 1, wherein said transmitting forward link packet data channel includes transmitting null data.

3. The method as recited in claim 1 further comprising:

receiving said reverse link supplemental channel scheduling information on said transmission of said forward link packet data control channel;

scheduling transmission of said reverse link supplemental channel based on said received scheduling information.

4. A method for scheduling transmission on a supplemental channel from a mobile station, comprising:

receiving a reverse link supplemental channel scheduling information on a transmission of a forward link packet data control channel from a base station;

scheduling transmission of said reverse link supplemental channel based on said received scheduling information.

5. An apparatus for transmitting a reverse link supplemental channel scheduling information for a mobile station in a communication system, comprising:

means for incorporating said reverse link supplemental channel scheduling information onto a forward link packet data control channel;

a transmitter for transmitting said forward link packet data control channel and a forward link packet data channel during a common burst transmission to said mobile station.

6. The apparatus as recited in claim 5, wherein said transmission of said forward link packet data channel includes transmission of null data on said forward link packet data channel.

7. The apparatus as recited in claim 5 further comprising:

a receiver for receiving said reverse link supplemental channel scheduling information on said transmission of said forward link packet data control channel;

means for scheduling transmission of said reverse link supplemental channel based on said received scheduling information.

8. An apparatus for scheduling transmission on a supplemental channel from a mobile station, comprising:

a receiver for receiving a reverse link supplemental channel scheduling information on a transmission of a forward link packet data control channel from a base station;

means for scheduling transmission of said reverse link supplemental channel based on said received scheduling information.

9. A method for transmitting a reverse link supplemental channel scheduling information for a mobile station in a communication system, comprising:

transmitting a forward link high rate channel and a forward link low rate channel to said mobile station during a common burst of transmission;

transmitting said reverse link supplemental channel scheduling information on said low rate channel.

10. The method as recited in claim 9 wherein said transmission of said high rate channel includes transmission of null data on said high rate channel.

11. The method as recited in claim 9 further comprising:

receiving said low rate channel and said high rate channel;

scheduling transmission on said reverse link supplemental channel based on data received on said low rate channel.

12. A method for scheduling transmission of a reverse link supplemental channel for a mobile station in a communication system, comprising:

receiving a low rate channel and a high rate channel from a base station;

scheduling transmission on said reverse link supplemental channel based on data received on said low rate channel.

13. An apparatus for transmitting a reverse link supplemental channel scheduling information for a mobile station in a communication system, comprising:

a transmitter for transmitting a forward link high rate channel and a forward link low rate channel to said mobile station during a common burst of transmission, wherein said reverse link supplemental channel scheduling information is transmitted on said low rate channel.

14. The apparatus as recited in claim 13 wherein said transmission of said high rate channel includes transmission of null data on said high rate channel.

15. The apparatus as recited in claim 13 further comprising:

a receiver for receiving said low rate channel and said high rate channel;

means for scheduling transmission on said reverse link supplemental channel based on data received on said low rate channel.

16. An apparatus for scheduling transmission of a reverse link supplemental channel for a mobile station in a communication system, comprising:

a receiver for receiving a low rate channel and a high rate channel from a base station;

means for scheduling transmission on said reverse link supplemental channel based on data received on said low rate channel.