Scheduled and autonomous transmission and acknowledgement

• US 7,155,236 B2
• Filed: 08/21/2003
• Issued: 12/26/2006
• Est. Priority Date: 02/18/2003
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Tiedemann, Edward G. Jr., Chen, Tao, Jain, Avinash
• Primary Examiner(s): Feild, Joseph
• Assistant Examiner(s): Nguyen, David Q.
• Application Number:
  US10/646,955
• Publication Number:
  US 20040162083A1
• Time in Patent Office: 1,223 Days
• Field of Search: 320/328, 320/340, 320/229, 320/230, 320/230.1, 320/222, 320/228, 320/341, 320/321, 320/320, 320/335, 320/325.41, 320/441, 455/454, 455/524, 455/514, 455/84, 455/23
• US Class Current: 455/454
• CPC Class Codes: H04L 1/18 Automatic repetition systems, e.g. Van Duuren systems
• CPC Class Codes: H04W 52/286 during data packet transmission, e.g. high speed packet access [HSPA]
• CPC Class Codes: H04W 72/12 Wireless traffic scheduling
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 74/02 Hybrid access

Abstract

Techniques for efficient signaling to and from a plurality of mobile stations are disclosed. In one embodiment, a subset of mobile stations may be allocated a portion of the shared resource with one or more individual access grants, another subset may be allocated a portion of the shared resource with a single common grant, and yet another subset may be allowed to use a portion of the shared resource without any grant. In another embodiment, an acknowledge and continue command is used to extend all or a subset of the previous grants without the need for additional requests and grants, and their associated overhead. In one embodiment, a traffic to pilot ratio (T/P) is used to allocate a portion of the shared resource, allowing a mobile station flexibility in selecting its transmission format based on T/P.

Claims

1. A remote station, comprising:

a data buffer for receiving data for transmission;

a message generator for generating an access request message when the data buffer contains data for transmission;

a receiver for receiving one or more individual grant channels and one or more common grant channels from a base station;

a message decoder for decoding an access grant directed to the remote station, the access grant comprising an individual grant directed on one of the one or more individual grant channels or a common grant on one of the one or more common grant channels; and

a transmitter for transmitting the access request message and for transmitting a portion of data from the data buffer in response to a decoded access grant, wherein the transmitter further transmits a limited portion of the data in the data buffer autonomously, irrespective of whether an access grant has been received.

2. A remote station, comprising:

a data buffer for receiving data for transmission;

a message generator for generating an access request message when the data buffer contains data for transmission;

a receiver for receiving one or more individual grant channels and one or more common grant channels from a base station;

a message decoder for decoding an access grant directed to the remote station, the access grant comprising an individual grant directed on one of the one or more individual grant channels or a common grant on one of the one or more common grant channels; and

a transmitter for transmitting the access request message and for transmitting a portion of data from the data buffer in response to a decoded access grant, wherein the transmitter transmits on one of a plurality of channels subsequent to a received grant.

3. The remote station of claim 2, wherein the transmitter transmits on two or more of a plurality of channels subsequent to a received grant.

4. The remote station of claim 3, wherein the received grant is an individual grant, comprising a long grant flag, the long grant flag asserted.

5. The remote station of claim 3, wherein the received grant is a common grant.

6. A remote station, comprising:

a data buffer for receiving data for transmission;

a message generator for generating an access request message when the data buffer contains data for transmission;

a receiver for receiving one or more individual grant channels and one or more common grant channels from a base station;

a message decoder for decoding an access grant directed to the remote station, the access grant comprising an individual grant directed on one of the one or more individual grant channels or a common grant on one of the one or more common grant channels; and

a transmitter for transmitting the access request message and for transmitting a portion of data from the data buffer in response to a decoded access grant, wherein a grant comprises a T/P value.

7. The remote station of claim 6, further comprising a processor for selecting transmission parameters based on a T/P value.

8. The remote station of claim 7, wherein the transmission parameters comprise an encoder packet size.

9. The remote station of claim 7, wherein the transmission parameters comprise an expected number of subpacket transmissions.

10. The remote station of claim 9, wherein the number of expected subpacket transmissions selected is the maximum number of subpacket transmissions.

11. The remote station of claim 9, wherein the number of expected subpacket transmissions selected is less than the maximum number of subpacket transmissions.

12. The remote station of claim 7, wherein the transmission parameters comprise a modulation format.

13. The remote station of claim 7, wherein the transmission parameters comprise a transmit power level for a secondary pilot channel.

14. The remote station of claim 7, wherein the processor reduces the T/P when the transmitter has insufficient transmit power to transmit according to the unreduced T/P.

15. A remote station, comprising:

a data buffer for receiving data for transmission;

a message generator for generating an access request message when the data buffer contains data for transmission;

a receiver for receiving one or more individual grant channels and one or more common grant channels from a base station;

a message decoder for decoding an access grant directed to the remote station, the access grant comprising an individual grant directed on one of the one or more individual grant channels or a common grant on one of the one or more common grant channels; and

a transmitter for transmitting the access request message and for transmitting a portion of data from the data buffer in response to a decoded access grant, wherein;

the receiver further receives an ACK-and-Continue command; and

the transmitter transmits an additional portion of data from the data buffer in response to a previously decoded access grant.

16. A remote station, comprising:

a data buffer for receiving data for transmission;

a message generator for generating an access request message when the data buffer contains data for transmission;

a receiver for receiving one or more individual grant channels and one or more common grant channels from a base station;

a message decoder for decoding an access grant directed to the remote station, the access grant comprising an individual grant directed on one of the one or more individual grant channels or a common grant on one of the one or more common grant channels; and

a transmitter for transmitting the access request message and for transmitting a portion of data from the data buffer in response to a decoded access grant, wherein;

the receiver further receives an ACK command; and

the transmitter ceases transmitting data from the data buffer in response to a previously decoded access grant.

17. The remote station of claim 16, wherein the transmitter further transmits a limited portion of the data in the data buffer autonomously, subsequent to a received ACK.

18. A remote station, comprising:

a data buffer for receiving data for transmission;

a message generator for generating an access request message when the data buffer contains data for transmission;

a receiver for receiving one or more individual grant channels and one or more common grant channels from a base station;

a message decoder for decoding an access grant directed to the remote station, the access grant comprising an individual grant directed on one of the one or more individual grant channels or a common grant on one of the one or more common grant channels; and

a transmitter for transmitting the access request message and for transmitting a portion of data from the data buffer in response to a decoded access grant, wherein;

the receiver further receives a NAK command; and

the transmitter retransmits the portion of data from the data buffer previously transmitted in response to a previously decoded access grant.

19. A remote station, comprising:

a data buffer for receiving data for transmission;

a message generator for generating an access request message when the data buffer contains data for transmission;

a receiver for receiving one or more individual grant channels and one or more common grant channels from a base station;

a message decoder for decoding an access grant directed to the remote station, the access grant comprising an individual grant directed on one of the one or more individual grant channels or a common grant on one of the one or more common grant channels; and

a transmitter for transmitting the access request message and for transmitting a portion of data from the data buffer in response to a decoded access grant, wherein the message generator generates an access request message conditioned on the amount of data in the data buffer exceeding a pre-determined threshold.

20. A remote station, comprising:

a data buffer for receiving data for transmission;

a message generator for generating an access request message when the data buffer contains data for transmission;

a receiver for receiving one or more individual grant channels and one or more common grant channels from a base station;

a message decoder for decoding an access grant directed to the remote station, the access grant comprising an individual grant directed on one of the one or more individual grant channels or a common grant on one of the one or more common grant channels; and

a transmitter for transmitting the access request message and for transmitting a portion of data from the data buffer in response to a decoded access grant, wherein the message generator generates an access request message conditioned on a Quality of Service (QoS) service level.

21. A remote station, comprising:

a data buffer for receiving data for transmission;

a message generator for generating an access request message when the data buffer contains data for transmission;

a receiver for receiving one or more individual grant channels and one or more common grant channels from a base station;

a message decoder for decoding an access grant directed to the remote station, the access grant comprising an individual grant directed on one of the one or more individual grant channels or a common grant on one of the one or more common grant channels; and

a transmitter for transmitting the access request message and for transmitting a portion of data from the data buffer in response to a decoded access grant, wherein the message generator generates an access request message conditioned on re-request conditions being satisfied with respect to a previously generated access request message.

22. A remote station, comprising:

a data buffer for receiving data for transmission;

a message generator for generating an access request message when the data buffer contains data for transmission;

a receiver for receiving one or more individual grant channels and one or more common grant channels from a base station;

a message decoder for decoding an access grant directed to the remote station, the access grant comprising an individual grant directed on one of the one or more individual grant channels or a common grant on one of the one or more common grant channels; and

a transmitter for transmitting the access request message and for transmitting a portion of data from the data buffer in response to a decoded access grant, wherein the message generator generates an access request message conditioned on desired data transmission latency.

23. A remote station, comprising:

a data buffer for receiving data for transmission;

a message generator for generating an access request message when the data buffer contains data for transmission;

a receiver for receiving one or more individual grant channels and one or more common grant channels from a base station;

a message decoder for decoding an access grant directed to the remote station, the access grant comprising an individual grant directed on one of the one or more individual grant channels or a common grant on one of the one or more common grant channels; and

a transmitter for transmitting the access request message and for transmitting a portion of data from the data buffer in response to a decoded access grant, wherein the message generator generates an access request message conditioned on desired data transmission throughput.