METHOD AND APPARATUS TO REDUCE RADIO RESOURCE OVERHEAD ASSOCIATED WITH INTERMITTENT TRAFFIC

• US 20130235830A1
• Filed: 04/22/2013
• Published: 09/12/2013
• Est. Priority Date: 08/13/2007
• Status: Active Grant

• Current Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Pelletier, Benoit, Zeira, Eldad M., Cave, Christopher R., Marinier, Paul, Roy, Vincent, Kim, In H.
• Granted Patent: US 9,730,214 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04W 52/286 during data packet transmission, e.g. high speed packet access [HSPA]
• CPC Class Codes: H04W 52/44 in connection with interruption of transmission
• CPC Class Codes: H04W 72/044 based on the type of the allocated resource
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 74/06 using polling

Abstract

A method and apparatus for requesting and releasing resources for a wireless transmit/receive unit (WTRU) and/or Node B. The WTRU may transmit a channel acquisition request to the Node B and receive a resource allocation from the Node B. The resource allocation may include a common resource. The WTRU may release the common resource. The release may be based on one or more conditions. The channel acquisition request or the resource allocation may include information related to one or more channels or resources.

Claims

1. A method for use in a wireless transmit/receive unit (WTRU), the method comprising:

the WTRU transmitting a channel acquisition request to a Node B;

the WTRU receiving a resource allocation from the Node B, wherein the resource allocation includes a common Enhanced Dedicated Channel (E-DCH) resource;

the WTRU communicating using the resource allocation; and

the WTRU releasing the common E-DCH resource.

2. The method of claim 1, wherein the channel acquisition request includes a request for Fractional Dedicated Physical Channel (F-DPCH) resources.

3. The method of claim 1, wherein the channel acquisition request includes a request for Enhanced Absolute Grant Channel (E-AGCH) resources.

4. The method of claim 1, wherein the channel acquisition request includes a request for Enhanced Relative Grant Channel (E-RGCH) resources.

5. The method of claim 1, wherein the channel acquisition request includes at least one of:

offset information, channelization codes, or signatures, associated with one or more channels.

6. The method of claim 1, wherein the resource allocation includes at least one of:

uplink code information, a frame offset, downlink code information, or signatures related to channels.

7. The method of claim 1, wherein the releasing is performed after a period of inactivity.

8. The method of claim 7, wherein the period of inactivity is signaled by higher layers or pre-determined.

9. The method of claim 1, wherein the releasing is performed on a condition that the WTRU has no data to send.

10. The method of claim 1, further comprising maintaining radio network temporary identifiers (RNTIs).

11. The method of claim 1, wherein the releasing is performed on a condition that the WTRU sends a request to the Node B.

12. The method of claim 11, wherein the request is signaled via higher layers.

13. A wireless transmit/receive unit (WTRU) comprising:

a transmitter configured to transmit a channel acquisition request to a Node B;

a receiver configured to receive a resource allocation from the Node B, wherein the resource allocation includes a common Enhanced Dedicated Channel (E-DCH) resource;

the transmitter and the receiver configured to communicate using the resource allocation; and

a processor configured to release the common E-DCH resource.

14. The WTRU of claim 13, wherein the channel acquisition request includes a request for at least one of:

Fractional Dedicated Physical Channel (F-DPCH) resources;

Enhanced Absolute Grant Channel (E-AGCH) resources;

or Enhanced Relative Grant Channel (E-RGCH) resources.

15. The WTRU of claim 13, wherein the channel acquisition request includes at least one of:

offset information, channelization codes, or signatures, associated with one or more channels.

16. The WTRU of claim 13, wherein the resource allocation includes at least one of:

uplink code information, a frame offset, downlink code information, or signatures related to channels.

17. The WTRU of claim 13, wherein the processor is configured to release the common E-DCH resource after a period of inactivity.

18. The WTRU of claim 17, wherein the period of inactivity is signaled via higher layers or pre-determined.

19. The WTRU of claim 13, wherein the processor is configured to release the common E-DCH resource on a condition that the WTRU has no data to send.

20. The WTRU of claim 13, wherein the processor is further configured to maintain radio network temporary identifiers (RNTIs).

21. The WTRU of claim 13, wherein the processor is configured to release the common E-DCH resource on a condition that the transmitter transmits a request to the Node B.

22. The WTRU of claim 21, wherein the request is signaled via higher layers.