Method and apparatus for dynamically allocating H-ARQ processes

• US 9,161,337 B2
• Filed: 06/10/2013
• Issued: 10/13/2015
• Est. Priority Date: 06/10/2004
• Status: Active Grant

• Current Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Terry, Stephen E.
• Primary Examiner(s): LE, DANH C
• Application Number:
  US13/913,878
• Publication Number:
  US 20130272243A1
• Time in Patent Office: 855 Days
• Field of Search: 370/328, 370/329, 370/349, 455/452.1
• US Class Current: 1/1
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04W 28/04 Error control
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/56 based on priority criteria
• CPC Class Codes: H04W 74/00 Wireless channel access
• CPC Class Codes: H04W 88/12 Access point controller devices

Abstract

A method and wireless transmit/receive unit (WTRU) for supporting enhanced uplink (EU) transmissions are disclosed. A WTRU is configured to provide hybrid automatic repeat request (H-ARQ) processes for supporting transmission over an enhanced uplink (EU) channel, to receive configuration information, wherein the configuration information indicates which H-ARQ processes are associated with a particular MAC-d flow, to allocate an H-ARQ process for transmission of data from the MAC-d flow, wherein the allocated H-ARQ process is from one of the associated H-ARQ processes, and to transmit data from the MAC-d flow over the EU channel using the allocated H-ARQ process.

Claims

1. A method for supporting enhanced uplink (EU) transmissions implemented by a wireless transmit/receive unit (WTRU), the method comprising:

providing hybrid automatic repeat request (H-ARQ) processes for supporting transmission over an EU channel;

receiving configuration information, wherein the configuration information indicates which H-ARQ processes are associated with a particular dedicated channel medium access control (MAC-d) flow, wherein the association indicates that data from the particular MAC-d flow is allowed to be transmitted using an associated H-ARQ process;

for a transmission time interval (TTI), providing data from the MAC-d flow for transmission using a first H-ARQ process, on a condition that the first H-ARQ process is from one of the associated H-ARQ processes; and

transmitting data from the MAC-d flow over the EU channel using the first H-ARQ process.

2. The method of claim 1 wherein configuration information is received for each MAC-d flow configured for the WTRU.

3. The method of claim 1 wherein the configuration information is received via radio resource control (RRC) signaling.

4. The method of claim 1 wherein the configuration information is received from a radio network controller (RNC).

5. The method of claim 1 wherein the configuration information limits the H-ARQ processes associated with a MAC-d flow.

6. The method of claim 1 wherein H-ARQ operation is synchronous between the WTRU and a Node-B.

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

circuitry configured to provide hybrid automatic repeat request (H-ARQ) processes for supporting transmission over an enhanced uplink (EU) channel;

circuitry configured to receive configuration information, wherein the configuration information indicates which H-ARQ processes are associated with a particular dedicated channel medium access control (MAC-d) flow, wherein the association indicates that data from the particular MAC-d flow is allowed to be transmitted using an associated H-ARQ process;

circuitry configured to provide, for a transmission time interval (TTI), data from the MAC-d flow for transmission using a first H-ARQ process, on a condition that the first H-ARQ process is from one of the associated H-ARQ processes; and

circuitry configured to transmit data from the MAC-d flow over the EU channel using the first H-ARQ process.

8. The WTRU of claim 7 wherein configuration information is received for each MAC-d flow configured for the WTRU.

9. The WTRU of claim 7 wherein the configuration information is received via radio resource control (RRC) signaling.

10. The WTRU of claim 7 wherein the configuration information is received from a radio network controller (RNC).

11. The WTRU of claim 7 wherein the configuration information limits the H-ARQ processes associated with a MAC-d flow.

12. The WTRU of claim 7 wherein H-ARQ operation is synchronous between the WTRU and a Node-B.