Wireless communication method of selecting an enhanced uplink transport format combination

• US 8,243,676 B2
• Filed: 08/15/2011
• Issued: 08/14/2012
• Est. Priority Date: 07/06/2006
• Status: Active Grant

• Current Assignee: Guangdong OPPO Electronics Industry Company Limited (BBK Electronics Corp., Inc.)
• Original Assignee: Nufront Mobile Communications Technology Company Limited
• Inventors: Pinheiro, Ana Lucia, Rudolf, Marian, Haim, John
• Primary Examiner(s): Karikari, Kwasi
• Application Number:
  US13/210,049
• Publication Number:
  US 20110299497A1
• Time in Patent Office: 365 Days
• Field of Search: 455/450, 455/455, 455/67.11, 370/332, 370/329, 370/238, 370/232
• 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

Methods of selecting an enhanced uplink (EU) transport format combination (E-TFC) are disclosed. A maximum number of bits of scheduled data for an upcoming transmission may be determined, wherein the highest value is lower or equal to:

$K_{e,\mathrm{ref}}·\frac{SG}{L_{e,\mathrm{ref}}·A_{\mathrm{ed},\mathrm{ref}}^2·{10}^{\Delta \mathrm{harq}/10}},$
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:

determining a maximum number of bits of scheduled data for an upcoming transmission calculated from K_e,ref, wherein the highest value is lower or equal to;

2. The method of claim 1, wherein a power offset (PO) for the upcoming transmission is the PO from a HARQ profile of a medium access control (MAC-d) flow that allows highest-priority data to be transmitted.

3. The method of claim 2, 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.

4. The method of claim 1, wherein SG=MIN(SGP, TBsize), where SGP is the maximum number of bits of scheduled data for an upcoming transmission and TBsize is a transport block size that provides a maximum supported payload.

5. The method of claim 1, further comprising:

performing E-TFC restriction; and

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

6. A wireless transmit/receive unit (WTRU) configured to select an enhanced uplink (EU) transport format combination (E-TFC), the WTRU configured to:

determine a maximum number of bits of scheduled data for an upcoming transmission calculated from K_e,ref, wherein the highest value is lower or equal to;

7. The WTRU of claim 6, wherein the WTRU is further configured to:

select a power offset (PO) for the upcoming transmission as the PO from a HARQ profile of a medium access control (MAC-d) flow that allows highest-priority data to be transmitted.

8. The WTRU 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 WTRU is further configured to select the MAC-d flow randomly.

9. The WTRU of claim 6, wherein SG=MIN(SGP, TBsize), where SGP is the maximum number of bits of scheduled data for an upcoming transmission and TBsize is a transport block size that provides a maximum supported payload.

10. The WTRU of claim 6, wherein the WTRU is further configured to:

perform E-TFC restriction; and

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

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

determining a maximum number of bits of scheduled data for an upcoming transmission, wherein the highest value is lower or equal to a product of;

a ratio of the serving grant (SG) over the number of EU dedicated physical data channels (E-DPDCHs) used for a selected reference E-TFC, a hybrid automatic repeat request (HARQ) offset for a specific data flow to be transmitted as signaled by higher layers, and a ratio derived from a parameter Δ

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

the number of data bits of the reference E-TFC.

12. The method of claim 11, wherein a power offset (PO) for the upcoming transmission is the PO from a HARQ profile of a medium access control (MAC-d) flow that allows highest-priority data to be transmitted.

13. The method of claim 12, 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.

14. The method of claim 11, wherein SG=MIN(SGP, TBsize), where SGP is the maximum number of bits of scheduled data for an upcoming transmission and TBsize is a transport block size that provides a maximum supported payload.

15. The method of claim 11, further comprising:

performing E-TFC restriction; and

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