Methods for transmission time interval bundling in the uplink

• US 10,104,655 B2
• Filed: 09/11/2015
• Issued: 10/16/2018
• Est. Priority Date: 04/11/2008
• Status: Active Grant

• Current Assignee: InterDigital Patent Holdings, Inc. (InterDigital, Inc.)
• Original Assignee: InterDigital Patent Holdings, Inc. (InterDigital, Inc.)
• Inventors: Zhang, Guodong, Wang, Jin, Pan, Kyle Jung-Lin, Gauvreau, Jean-Louis, Terry, Stephen E.
• Primary Examiner(s): Liu, Jung
• Application Number:
  US14/851,257
• Publication Number:
  US 20160007348A1
• Time in Patent Office: 1,131 Days
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 1/1621 Group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers
• CPC Class Codes: H04L 1/1635 Cumulative acknowledgement, i.e. the acknowledgement message applying to all previous messages
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/189 Transmission or retransmission of more than one copy of a message
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/12 Wireless traffic scheduling
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management

Abstract

Methods, systems, and apparatus for supporting uplink Transmission Time Interval (TTI) bundling in Long Term Evolution (LTE) are provided. Methods, systems, and apparatus for signaling, activation/deactivation, and wireless transmit/receive unit (WTRU) behavior are also provided.

Claims

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

a memory, and;

a processor, the processor being configured to;

receive, via a physical downlink control channel, a downlink control information (DCI) associated with a bundled physical uplink shared channel (PUSCH) transmission, the DCI indicating a number of subframes to be included in a bundle for the bundled PUSCH transmission;

determine a hybrid acknowledgement repeat request (HARQ) process information from the DCI received from the physical downlink control channel; and

send the bundled PUSCH transmission in accordance with the number of subframes indicated by the DCI and the HARQ process information.

2. The WTRU of claim 1, wherein the DCI further comprises a resource block assignment.

3. The WTRU of claim 1, wherein the DCI further comprises a modulation and coding scheme (MCS).

4. The WTRU of claim 1, wherein the DCI further comprises a redundancy version (RV).

5. The WTRU of claim 1, wherein a first redundancy version (RV) is used for a first set of subframes to be bundled and a second RV is used for a second set of subframes.

6. A wireless transmit/receive unit (WTRU), the WTRU comprising:

a memory, and;

a processor, the processor being configured to;

receive, via a physical downlink control channel, a downlink control information (DCI) associated with a bundled physical uplink shared channel (PUSCH) transmission, the DCI indicating a number of subframes to be included in a bundle for the bundled PUSCH transmission, and including a modulation and coding scheme (MCS);

determine a hybrid acknowledgement repeat request (HARQ) process information from the DCI received from the physical downlink control channel; and

send the bundled PUSCH transmission in accordance with the number of subframes indicated by the DCI and the HARQ process information.

7. The WTRU of claim 6, wherein the DCI further comprises a resource block assignment.

8. The WTRU of claim 6, wherein the DCI further comprises a redundancy version (RV).

9. The WTRU of claim 8, wherein the RV is a first RV used for a first set of subframes to be bundled and a second RV is used for a second set of subframes.

10. A method for allowing a wireless transmit/receive unit (WTRU) to use transmission time interval (TTI) bundling, the method comprising:

receiving, by the WTRU via a physical downlink control channel, a downlink control information (DCI) indicating a number of subframes to be included in a bundle for the bundled PUSCH transmission;

determining a hybrid acknowledgement repeat request (HARQ) process information from the DCI received from the physical downlink control channel; and

sending the bundled PUSCH transmission in accordance with the number of subframes indicated by the DCI and the HARQ process information.

11. The method of claim 10, wherein the DCI further comprises a resource block assignment.

12. The method of claim 10, wherein the DCI further comprises a modulation and coding scheme (MCS).

13. The method of claim 10, wherein the DCI further comprises a redundancy version (RV).

14. The method of claim 10, wherein a first redundancy version (RV) is used for a first set of subframes to be bundled and a second RV is used for a second set of subframes.