Wireless communication method of selecting an enhanced uplink transport format combination by setting a scheduling grant payload to the highest payload that can be transmitted

• US 8,000,291 B2
• Filed: 07/05/2007
• Issued: 08/16/2011
• Est. Priority Date: 07/06/2006
• Status: Active Grant

• Current Assignee: Guangdong OPPO Electronics Industry Company Limited (BBK Electronics Corp., Inc.)
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Rudolf, Marian, Pinheiro, Ana Lucia, Haim, John W.
• Primary Examiner(s): Karikari; Kwasi
• Application Number:
  US11/773,579
• Publication Number:
  US 20080069035A1
• Time in Patent Office: 1,503 Days
• Field of Search: 455/445, 455/67.11, 370/232, 370/328
• US Class Current: 370/329
• CPC Class Codes: H04L 1/1867 Arrangements specially adapted for the transmitter end
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/36 by determining packet size, e.g. maximum transfer unit [MTU]
• CPC Class Codes: H04W 28/02 Traffic management, e.g. flow control or congestion control
• CPC Class Codes: H04W 52/18 TPC being performed according to specific parameters
• CPC Class Codes: H04W 52/26 using transmission rate or quality of service QoS [Quality of Service]
• CPC Class Codes: H04W 52/265 taking into account the quality of service QoS
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/535 based on resource usage policies
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]

Abstract

The present invention is related to a method of selecting an enhanced uplink (EU) transport format combination (E-TFC). A scheduling grant payload (SGP) is set to the highest payload that may be transmitted. The SGP is calculated as follows:

$\mathrm{SGP}=K_{e,\mathrm{ref}}·\frac{\mathrm{SG}}{L_{e,\mathrm{ref}}·A_{\mathrm{ed},\mathrm{ref}}^2·{10}^{\Delta \mathrm{harq}/10}},$
where SG is a serving grant, L_e,ref is the number of EU dedicated physical data channels (E-DPDCHs) used for a selected reference E-TFC, K_e,ref is the number of data bits of the reference E-TFC, Δ_harq is a hybrid automatic repeat request (HARQ) offset for a specific data flow to be transmitted as signaled by higher layers, and A_ed,ref is a ratio derived from a parameter ΔE-DPDCH signaled by higher layers for the selected reference E-TFC.

Claims

1. A method of selecting an enhanced uplink (EU) transport format combination (E-TFC), the method comprising:

setting a scheduling grant payload (SGP) to the highest payload that can be transmitted, wherein the SGP is equal to;

2. The method of claim 1 wherein β

_ed,ref=β

_c·

A_ed,ref, where A_ed,ref is a ratio derived from a parameter Δ

E-DPDCH signaled by higher layers for the selected reference E-TFC.

3. The method of claim 2 wherein

4. The method of claim 3 wherein

6. The method of claim 1 wherein SG=MIN (SGP, TBsize).

7. The method of claim 1 further comprising:

selecting a dedicated channel medium access control (MAC-d) flow with a power offset (PO) that allows highest-priority data to be transmitted.

8. The method of claim 7 wherein on a condition that more than one MAC-d flow allows data of the same highest priority to be transmitted, the selection of the MAC-d flow is performed randomly.

9. The method of claim 7 further comprising:

based on the MAC-d flow selected, identifying the MAC-d flow(s) that can be multiplexed; and

ignoring the MAC-d flow(s) that cannot be multiplexed.

10. The method of claim 9 further comprising:

performing E-TFC restriction; and

determining the maximum supported payload that can be sent in a next transmission timing interval (TTI).

11. The method of claim 10 wherein the payload is set to a maximum EU medium access control (MAC) size.

5. A wireless transmit/receive unit (WTRU) for selecting an enhanced uplink (EU) transport format combination (E-TFC), the WTRU configured to set a scheduling grant payload (SGP) to the highest payload that can be transmitted, wherein the SGP is equal to:

12. A method of selecting an enhanced uplink (EU) transport format combination (E-TFC), the method comprising:

setting a scheduling grant payload (SGP) to the highest payload that can be transmitted, wherein the SGP is equal to;

14. The method of claim 12 wherein SG=MIN (SGP, TBsize), where TBsize is a transport block size that provides a maximum supported payload.

15. The method of claim 12 further comprising:

selecting a dedicated channel medium access control (MAC-d) flow with a power offset (PO) that allows highest-priority data to be transmitted.

16. The method of claim 15 wherein on a condition that more than one MAC-d flow allows data of the same highest priority to be transmitted, the selection of the MAC-d flow is performed randomly.

17. The method of claim 15 further comprising:

based on the MAC-d flow selected, identifying the MAC-d flow(s) that can be multiplexed; and

ignoring the MAC-d flow(s) that cannot be multiplexed.

18. The method of claim 17 further comprising:

performing E-TFC restriction; and

determining the maximum supported payload that can be sent in a next transmission timing interval (TTI).

19. The method of claim 18 wherein the payload is set to a maximum EU medium access control (MAC) size.

13. A wireless transmit/receive unit (WTRU) for selecting an enhanced uplink (EU) transport format combination (E-TFC), the WTRU configured to set a scheduling grant payload (SGP) to the highest payload that can be transmitted, wherein the SGP is equal to: