Method and apparatus for transmitting enhanced uplink data using a H-ARQ process

• US 10,129,871 B2
• Filed: 10/12/2015
• Issued: 11/13/2018
• 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): Orgad, Edan
• Assistant Examiner(s): Ko, Sithu
• Application Number:
  US14/880,399
• Publication Number:
  US 20160037517A1
• Time in Patent Office: 1,128 Days
• Field of Search: None
• 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 wireless transmit/receive unit (WTRU) is configured to configure a set of hybrid automatic repeat request (H-ARQ) processes. The WTRU is configured to receive information which limits a particular MAC-d flow to accessing a limited set of H-ARQ processes. The WTRU is configured to determine whether a first H-ARQ process from the set of H-ARQ processes is available for transmitting EU data in a transmit time interval (TTI). The WTRU is configured to determine whether the particular MAC-d flow has access to the first H-ARQ process, based on the information received. The WTRU is configured to transmit data from the particular MAC-d flow in the TTI using the first H-ARQ process, on a condition that the first H-ARQ process is available for transmitting EU data in the TTI and that the particular MAC-d flow has access to the first H-ARQ process.

Claims

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

a controller, operatively coupled to a transmitter and a receiver, configured to use a plurality of hybrid automatic repeat request (H-ARQ) processes;

the receiver configured to receive configuration information that identifies at least one medium access control for dedicated channel (MAC-d) flow and identifies H-ARQ processes, from the plurality of H-ARQ processes that the controller is configured to use, that data from the at least one MAC-d flow is allowed to be transmitted over;

the controller configured to identify a H-ARQ process, from the plurality of H-ARQ processes that the controller is configured to use, for transmission in a transmit time interval (TTI), wherein the identification is based on a predetermined schedule;

the controller configured to select data from at least one MAC-d flow based on the configuration information received; and

the transmitter configured to transmit the selected data in the TTI using the identified H-ARQ process.

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

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

4. The WTRU of claim 1 wherein each MAC-d flow is associated with a priority.

5. The WTRU of claim 1 wherein the selected data includes data from a MAC-d flow associated with a highest priority.

6. The WTRU of claim 1 wherein the receiver is configured to receive information from a radio network controller (RNC) that indicates a number of H-ARQ processes for the WTRU to use.

7. A method for transmitting enhanced uplink (EU) data, implemented by a wireless transmit/receive unit (WTRU), the method comprising:

using a plurality of hybrid automatic repeat request (H-ARQ) processes;

receiving configuration information that identifies at least one medium access control for dedicated channel (MAC-d) flow and identifies H-ARQ processes, from the plurality of H-ARQ processes, that data from the at least one MAC-d flow is allowed to be transmitted over;

identifying a H-ARQ process, from the plurality of H-ARQ processes, for transmitting EU data in a transmit time interval (TTI), wherein the identification is based on a predetermined schedule;

selecting data from at least one MAC-d flow based on the configuration information received; and

transmitting the selected data in the TTI using the identified H-ARQ process.

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

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

10. The method of claim 7 wherein each MAC-d flow is associated with a priority.

11. The method of claim 7 wherein the selected data includes data from a MAC-d flow associated with a highest priority.

12. The method of claim 7, further comprising receiving information from a radio network controller (RNC) that indicates a number of H-ARQ processes for the WTRU to use.