Method and apparatus for transmitting scheduling information in a wireless communication network

• US 8,797,873 B2
• Filed: 11/09/2010
• Issued: 08/05/2014
• Est. Priority Date: 08/21/2006
• Status: Active Grant

• Current Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Marinier, Paul
• Primary Examiner(s): Cho, Un C
• Assistant Examiner(s): Liu, Siming
• Application Number:
  US12/942,528
• Publication Number:
  US 20110110238A1
• Time in Patent Office: 1,365 Days
• Field of Search: 370/229, 370/235, 370/310, 370/329
• US Class Current: 370/235
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/266 Stopping or restarting the source, e.g. X-on or X-off
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 28/0278 using buffer status reports dynamic wireless traffic scheduling definition H04W72/12
• CPC Class Codes: H04W 72/1263 Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/52 based on load
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]

Abstract

A wireless transmit/receive unit (WTRU) and a method for a WTRU to send scheduling information (SI) is disclosed. The SI may be sent in response to the having a non-zero grant smaller than needed to send a protocol data unit (PDU).

Claims

1. A method performed by a Third Generation Partnership Project (3GPP) wireless transmit/receive unit (WTRU), the method comprising:

triggering transmission of scheduling information (SI), from the WTRU to a Node-B, in response to the WTRU having a non-zero grant smaller than needed preventing the WTRU from sending a medium access control protocol data unit (PDU) of any of a plurality of scheduled medium access control-d (MAC-d) flows.

2. The method of claim 1, wherein the SI is sent periodically.

3. The method of claim 2, wherein a period for sending the SI is pre-configured.

4. The method of claim 2, further comprising:

receiving an indication by the WTRU of a period of periodically triggering transmission of the SI.

5. The method of claim 1, wherein the MAC-d flows are managed by a scheduling grant.

6. A Third Generation Partnership Project (3GPP) wireless transmit/receive unit (WTRU) comprising:

circuitry configured to trigger transmission of scheduling information (SI), from the WTRU to a Node-B, in response to the WTRU having a non-zero grant smaller than needed preventing the WTRU of transmission of a medium access control protocol data unit (PDU) of any of a plurality of scheduled medium access control-d (MAC-d) flows.

7. The WTRU of claim 6, wherein the SI is sent periodically.

8. The WTRU of claim 7, further comprising:

circuitry configured to receive an indication of a period of periodically sending the SI.

9. The WTRU of claim 6, further comprising:

a processor configured to trigger transmission of the SI periodically using a pre-configured period.

10. The WTRU of claim 6, wherein the MAC-d flows are managed by a scheduling grant.