DTX detection when ACK/NACK is transmitted with scheduling request

• US 20090219897A1
• Filed: 02/03/2009
• Published: 09/03/2009
• Est. Priority Date: 02/05/2008
• Status: Active Grant

• Current Assignee: Nokia Solutions and Networks US LLC (Nokia Corporation)
• Original Assignee: Nokia Solutions and Networks US LLC (Nokia Corporation)
• Inventors: Lindholm, Jari, Pajukoski, Kari, Tiirola, Esa, Hooli, Kari
• Granted Patent: US 8,121,082 B2
• Time in Patent Office: Days
• US Class Current: 370/336
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 2001/125 Arrangements for preventing errors in the return channel

Abstract

A method for signaling between a mobile apparatus (10) and a network node (12) is described. The method includes generating a message that includes a scheduling request. Determining whether a second indication (e.g., an acknowledgment) is to be transmitted in a sub-frame with the first indication is also included. The method includes, in response to a determination that the second indication is not to be included, the message is configured in a first configuration and, in response to a determination that the second indication is to be included, the message also includes the second indication and the message is configured in a second configuration. The first configuration is distinct from the second configuration. The method also includes sending the message, via a wireless transmitter, in the sub-frame. Apparatus and computer-readable media are also described.

Claims

1. A method comprising:

generating a message comprising a first indication of a scheduling request,

determining whether a second indication is to be transmitted in a sub-frame with the first indication, where the second indication indicates that a downlink resource allocation grant has succeeded and that each of at least one corresponding codeword has been detected correctly;

in response to a determination that the second indication is not to be included, the message is configured in a first configuration, and

in response to a determination that the second indication is to be included, the message further comprises the second indication and the message is configured in a second configuration,

where the first configuration is distinct from the second configuration; and

sending the message, via a wireless transmitter, in the sub-frame.

2. The method of claim 1, the method further comprising:

determining whether a third indication is to be transmitted in a sub-frame with an indication of a scheduling request, where the third indication indicates that a downlink resource allocation grant has succeeded and that each of the at least one corresponding codeword has not been detected correctly;

in response to a determination that the third indication is to be included, the message further comprises the third indication and the message is configured in a third configuration.

3. The method of claim 2, where when the message is configured in one of the second configuration and the third configuration, the message is sent using:

acknowledge/negative-acknowledge physical uplink control channel resources when the scheduling request is a negative scheduling request, and

scheduling request physical uplink control channel resources when the scheduling request is a positive scheduling request.

4. The method of claim 2, where when the message is configured in one of the second configuration and the third configuration, the message is sent using one of:

a pilot part of the scheduling request resources and a data part of acknowledgement resources, and

a pilot part of the acknowledgement resources and a data part of the scheduling request resources.

5. The method of claim 2, where the first configuration is identical to the third configuration.

6. The method of claim 2, where the first configuration is distinct from the third configuration, and the second configuration is distinct from the third configuration.

7. The method of claim 2, where the first configuration, second configuration and third configuration are represented using a single modulation symbol.

8. The method of claim 2, where the first configuration, second configuration and third configuration are represented using two modulation symbols.

9. The method of claim 2, where when the message is configured in one of the second configuration and the third configuration, the message is sent using periodic resources.

10. The method claim 1, where the at least one corresponding codeword comprises at least two corresponding codewords,

the method further comprising:

determining whether a fourth indication is to be transmitted in a sub-frame with an indication of a scheduling request, where the fourth indication indicates that a downlink resource allocation grant has succeeded, that at least one corresponding codeword of the at least two corresponding codewords has not been detected correctly and that at least one corresponding codeword of the at least two corresponding codewords has been detected correctly; and

in response to a determination that the fourth indication is to be included, the message further comprises the fourth indication and the message is configured in a fourth configuration.

11. An apparatus comprising:

a message generating module configured to generate a message comprising a scheduling request; and

a determination module configured to determine whether an acknowledgement is to be transmitted in a same sub-frame as the message;

where the message generating module is further configured;

in response to a determination that the acknowledgement is not to be included, to configure the message in a first configuration, and

in response to a determination that the acknowledgement is to be included, to configure the message in a second configuration that comprises the acknowledgement,

where the first configuration is distinct from the second configuration.

12. The apparatus of claim 11, where the determination module is further configured to determine whether a negative-acknowledgement is to be transmitted in the same sub-frame as the message;

and

the message generating module is further configured to configure the message in a third configuration that comprises the negative-acknowledgement in response to a determination that the negative-acknowledgement is to be included.

13. The apparatus of claim 12, further comprising a transmitter configured to, in response to the message being configured in one of the second configuration and the third configuration, send the message using:

acknowledge/negative-acknowledge physical uplink control channel resources when the scheduling request is a negative scheduling request, and

scheduling request physical uplink control channel resources when the scheduling request is a positive scheduling request.

14. The apparatus of claim 12, further comprising a transmitter configured to, in response to the message being configured in one of the second configuration and the third configuration, send the message using:

a pilot part of the scheduling request resources and a data part of acknowledgement resources, and

a pilot part of the acknowledgement resources and a data part of the scheduling request resources.

20. The apparatus of claim 12, where the negative-acknowledgement indicates that a downlink resource allocation grant has succeeded and that each of at least one corresponding codeword has not been detected correctly.

21. The apparatus of claim 11, where the acknowledgement indicates that a downlink resource allocation grant has succeeded and that each of at least one corresponding codeword has been detected correctly.

15-19. -19. (canceled)

22. (canceled)

23. A computer-readable medium tangibly encoding a computer program comprising program instructions, execution of the program instructions resulting in operations comprising:

generating a message comprising a scheduling request,

determining whether an acknowledgement is to be transmitted in a same sub-frame as the scheduling request;

in response to a determination that the acknowledgement is not to be included, the message is configured in a first configuration, and

in response to a determination that the acknowledgement is to be included, the message is configured in a second configuration comprising the acknowledgement,

where the first configuration is distinct from the second configuration.

24. The computer-readable medium of claim 23, where the operations further comprise:

determining whether a negative-acknowledgement is to be transmitted in the same sub-frame as the message; and

in response to a determination that the negative-acknowledgement is to be included, the message is configured in a third configuration comprising the negative-acknowledgement.

25-34. -34. (canceled)

35. An apparatus comprising:

message generation means for generating a message comprising a scheduling request; and

first determining means for determining whether an acknowledgement is to be transmitted in a same sub-frame as the message;

where the message generation means is further for;

configuring the message in a first configuration in response to a determination that the acknowledgement is not to be included, and

configuring the message in a second configuration comprising the acknowledgement in response to a determination that the acknowledgement is to be included,

where the first configuration is distinct from the second configuration.

36. The apparatus of claim 35, further comprising:

second determining means for determining whether a negative-acknowledgement is to be transmitted in the same sub-frame as the message,

where the message generation means is further for configuring the message in a third configuration comprising the negative-acknowledgement in response to a determination that the negative-acknowledgement is to be included.

37-46. -46. (canceled)