Method and apparatus for selecting multiple transport formats and transmitting multiple transport blocks simultaneously with multiple H-ARQ processes

• US 9,985,768 B2
• Filed: 09/12/2014
• Issued: 05/29/2018
• Est. Priority Date: 12/29/2005
• Status: Active Grant

• Current Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Terry, Stephen E., Wang, Jin, Chandra, Arty
• Primary Examiner(s): Nguyen, Brian D
• Application Number:
  US14/485,125
• Publication Number:
  US 20150003429A1
• Time in Patent Office: 1,355 Days
• CPC Class Codes: H04L 1/0025 Transmission of mode-switching indication
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/1678 where the control information is for timing, e.g. time stamps
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1822 involving configuration of automatic repeat request [ARQ] with parallel processes
• CPC Class Codes: H04L 1/1825 Adaptation of specific ARQ protocol parameters according to transmission conditions
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/1893 Physical mapping arrangements physical resource mapping in general H04L5/00
• CPC Class Codes: H04L 5/0057 Physical resource allocation for CQI
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/542 using measured or perceived quality

Abstract

A method and apparatus for selecting multiple transport formats and transmitting multiple transport blocks (TBs) in a transmission time interval simultaneously with multiple hybrid automatic repeat request (H-ARQ) processes in a wireless communication system are disclosed. Available physical resources and H-ARQ processes associated with the available physical resources are identified and channel quality of each of the available physical resources is determined. Quality of service (QoS) requirements of higher layer data to be transmitted are determined. The higher layer data is mapped to at least two H-ARQ processes. Physical transmission and H-ARQ configurations to support QoS requirements of the higher layer data mapped to each H-ARQ process are determined. TBs are generated from the mapped higher layer data in accordance with the physical transmission and H-ARQ configurations of each H-ARQ process, respectively. The TBs are transmitted via the H-ARQ processes simultaneously.

Claims

1. A wireless transmit/receive unit (WTRU) configured to receive a plurality of transport blocks (TBs) in a transmission time interval (TTI), the WTRU comprising:

a transmitter configured to send a channel quality indicator (CQI) feedback message including a CQI for each of a plurality of sets of sub-carriers;

a receiver configured to receive an allocation of radio resources that includes at least two sets of physical resources, wherein the allocation is based on the CQI feedback message;

the receiver further configured to receive the plurality of TBs in the TTI using the at least two sets of physical resources, wherein each set of the at least two sets of physical resources has associated hybrid automatic repeat request (H-ARQ) process information, a modulation and coding scheme (MCS), a transport block size, and a redundancy version;

the transmitter further configured to transmit an indication that an at least one TB of the plurality of TBs was not received; and

the receiver further configured to receive a retransmission of the at least one TB.

2. The WTRU of claim 1 wherein each CQI represents an MCS.

3. The WTRU of claim 1 wherein each set of the at least two sets of physical resources is for a different MIMO stream.

4. The WTRU of claim 3 wherein each MIMO stream is a spatial stream.

5. The WTRU of claim 1 wherein each set of the at least two sets of physical resources is for a different set of sub-carriers.

6. The WTRU of claim 1 wherein each TB of the plurality of TBs has an associated cyclic redundancy check (CRC).

7. A method for receiving a plurality of transport blocks (TBs) in a transmission time interval (TTI), the method comprising:

sending a channel quality indicator (CQI) feedback message including a CQI for each of a plurality of sets of sub-carriers;

receiving an allocation of radio resources that includes at least two sets of physical resources, wherein the allocation is based on the CQI feedback message;

receiving the plurality of TBs in the TTI using the at least two sets of physical resources, wherein each set of the at least two sets of physical resources has associated hybrid automatic repeat request (H-ARQ) process information, a modulation and coding scheme (MCS), a transport block size, and a redundancy version;

transmitting an indication that an at least one TB of the plurality of TBs was not received; and

receiving a retransmission of the at least one TB.

8. The method of claim 7 wherein each CQI represents an MCS.

9. The method of claim 7 wherein each set of the at least two sets of physical resources is for a different MIMO stream.

10. The method of claim 9 wherein each MIMO stream is a spatial stream.

11. The method of claim 7 wherein each set of the at least two sets of physical resources is for a different set of sub-carriers.

12. The method of claim 7 wherein each TB of the plurality of TBs has an associated cyclic redundancy check (CRC).

13. An evolved NodeB (eNB) comprising:

a receiver configured to receive a channel quality indicator (CQI) feedback message including a CQI for each of a plurality of sets of sub-carriers;

a transmitter configured to transmit an allocation of radio resources that includes at least two sets of physical resources, wherein the allocation is based on the CQI feedback message;

the transmitter further configured to transmit a plurality of transport blocks (TBs) in a transmission time interval (TTI) using the at least two sets of physical resources, wherein each set of the at least two sets of physical resources has associated hybrid automatic repeat request (H-ARQ) process information, a modulation and coding scheme (MCS), a transport block size, and a redundancy version;

the receiver further configured to receive an indication that an at least one TB of the plurality of TBs was not received; and

the transmitter further configured to transmit the at least one TB.

14. The eNB of claim 13 wherein each CQI represents an allowed MCS.

15. The eNB of claim 13 wherein each set of the at least two sets of physical resources is for a different MIMO stream.

16. The eNB of claim 15 wherein each MIMO stream is a spatial stream.

17. The eNB of claim 13 wherein each set of the at least two sets of physical resources is for a different set of sub-carriers.

18. The eNB of claim 13 wherein each TB of the plurality of TBs has an associated cyclic redundancy check (CRC).