DOWNLINK CONTROL CHANNEL SIGNALING IN WIRELESS COMMUNICATION SYSTEMS

• US 20080049690A1
• Filed: 08/23/2006
• Published: 02/28/2008
• Est. Priority Date: 08/23/2006
• Status: Active Grant

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Talukdar, Anup K., Nory, Ravikiran, Love, Robert T., Stewart, Kenneth A., Sun, Yakun, Kuchibhotla, Ravi, Classon, Brian K., Sartori, Philippe J.
• Granted Patent: US 8,400,998 B2
• Time in Patent Office: Days
• US Class Current: 370/338
• CPC Class Codes: H04B 7/2615 using hybrid frequency-time division multiple access [FDMA-TDMA]
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management

Abstract

A method in a wireless communication terminal (103) including receiving a plurality of sub-frames having time-frequency resource elements and resource allocation fields associated with a corresponding sub-frame, wherein the resource allocation fields indicate a resource assignment. In another embodiment, terminal receives a radio frame comprising a plurality of sub-frames and a frequency diverse allocation field indicating frequency diverse resource allocations in multiple sub-frames of the radio frame.

Claims

1. A method in a wireless communication device, the method comprising:

receiving a plurality of sub-frames, each sub-frame having time-frequency resource elements, at least one of the sub-frames having a control channel,

the control channel including a plurality of resource allocation fields, each resource allocation field associated with at least one corresponding sub-frame,

the plurality of resource allocation fields indicating a resource assignment to the wireless communication device.

2. The method of claim 1,

the plurality of sub-frames forming a continuum of concatenated sub-frames,

each of the plurality of resource allocation fields indicating a resource assignment in a corresponding sub-frame of the continuum of concatenated sub-frames.

3. The method of claim 2, referencing individual resource assignments in one or more corresponding sub-frames of the continuum of concatenated sub-frames via a look-up table.

4. The method of claim 1, indicating frequency diverse allocations for the resource assignments indicated by a frequency diverse allocation field.

5. The method of claim 4, indicating the diverse allocations on the control channel.

6. The method of claim 4, indicating the frequency diverse allocations using signaling other than the control channel.

7. The method of claim 1, indicating frequency diverse allocations for the resource assignments with a common network environment.

8. The method of claim 4, indicating the frequency diverse allocations based on an order of resource allocation to the wireless communication device.

9. The method of claim 4, indicating the frequency diverse allocations based on sub-frame numbering or system frame numbering information.

10. The method of claim 1, receiving a downlink assignment on a different sub-frame than a sub-frame in which an uplink assignment is received.

15. The method of claim 10 wherein the control channel contains an assignment on resources that are not designated as frequency diverse on the frequency diverse allocation field.

16. The method of claim 15, further comprising sending a channel quality report for resources not including the resources that are designated frequency diverse on the frequency diverse allocation field.

11. A method in a wireless communication device, the method comprising:

receiving a radio frame comprising a plurality of sub-frames, each sub-frame having time-frequency resource elements, at least one of the sub-frames having a control channel,

a frequency diverse allocation field residing on a single control channel,

the frequency diverse allocation field for indicating frequency diverse resource allocations in multiple sub-frames of the radio frame.

12. The method of claim 11, receiving a mapping of frequency diverse and frequency non-diverse resources in a sub-frame

13. The method of claim 11, indicating the frequency diverse resource allocation in a bit map.

14. The method of claim 11, indicating the frequency diverse resource allocation by encoding one or more bits in a bit map.

17. A method in a wireless communication scheduling entity, the method comprising:

allocating a first radio resource comprising at least one time-frequency resource block of a first minimum size, and

allocating a second radio resource comprising at least one time-frequency resource block of a second minimum size,

the first and second radio resources allocated from a common set of time-frequency radio resources.

18. The method of claim 17, allocating the first and second radio resources for use by at least one wireless communication terminal during a common transmit time interval,

the transmit time interval constituting at least one sub-frame.

19. The method of claim 18, the transmit time interval constituting a concatenated series of at least two sub-frames.

20. The method of claim 17, allocating the first and second radio resources to a common wireless communication terminal.

21. The method of claim 17, allocating the first and second radio resources to different wireless communication terminals.