Method and system for supporting multiple hybrid automatic repeat request processes per transmission time interval
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04L-001/18
G08C-025/02
H04B-007/0413
H04B-007/06
H04L-001/16
H04L-005/00
H04W-072/04
출원번호
US-0018227
(2016-02-08)
등록번호
US-9608776
(2017-03-28)
발명자
/ 주소
Terry, Stephen E.
Olesen, Robert L.
Wang, Jin
Chandra, Arty
출원인 / 주소
InterDigital Technology Corporation
대리인 / 주소
Volpe and Koenig, P.C.
인용정보
피인용 횟수 :
0인용 특허 :
16
초록▼
A method and apparatus may be used for supporting multiple hybrid automatic repeat request (H-ARQ) processes per transmission time interval (TTI). A transmitter and a receiver may include a plurality of H-ARQ processes. Each H-ARQ process may transmit and receive one TB per TTI. The transmitter may
A method and apparatus may be used for supporting multiple hybrid automatic repeat request (H-ARQ) processes per transmission time interval (TTI). A transmitter and a receiver may include a plurality of H-ARQ processes. Each H-ARQ process may transmit and receive one TB per TTI. The transmitter may generate a plurality of TBs and assign each TB to a H-ARQ process. The transmitter may send control information for each TB, which may include H-ARQ information associated TBs with the TBs. The transmitter may send the TBs using the associated H-ARQ processes simultaneously per TTI. After receiving the TBs, the receiver may send feedback for each of the H-ARQ processes and associated TBs indicating successful or unsuccessful receipt of each of the TBs to the transmitter. The feedback for multiple TBs may be combined for the simultaneously transmitted H-ARQ processes, (i.e., TBs).
대표청구항▼
1. A wireless transmit/receive unit (WTRU) for receiving multiple transport blocks (TB)s, the WTRU comprising: a receiver configured to, in one transmission time interval (TTI), receive control information for each of a plurality of TBs, and to utilize the control information to receive the pluralit
1. A wireless transmit/receive unit (WTRU) for receiving multiple transport blocks (TB)s, the WTRU comprising: a receiver configured to, in one transmission time interval (TTI), receive control information for each of a plurality of TBs, and to utilize the control information to receive the plurality of TBs;a processor configured to process the plurality of TBs, to generate a feedback message that includes a channel quality indicator (CQI) and indicates successful or unsuccessful receipt of each of the plurality of TBs, to determine whether to include a cyclic redundancy check (CRC) with the feedback message, and based on the amount of feedback, to select a coding scheme for the feedback message; anda transmitter configured to transmit the generated feedback message. 2. The WTRU of claim 1, wherein the receiver is further configured to receive a separate cyclic redundancy check (CRC) for each of the plurality of TBs. 3. The WTRU of claim 1, wherein the feedback message includes a channel quality indicator (CQI) for each of a plurality of multiple-input multiple-output (MIMO) streams. 4. The WTRU of claim 1, wherein the control information includes, for each TB of the plurality of TBs, a modulation and coding scheme (MCS) and Hybrid automatic repeat request (HARQ) information, wherein the HARQ information for each TB includes a redundancy version. 5. The WTRU of claim 1, wherein the control information includes an allocation for each TB of the plurality of TBs to a different spatial stream. 6. The WTRU of claim 1, wherein feedback for each TB of the plurality of TBs is concatenated in feedback message. 7. The WTRU of claim 1, wherein a more robust coding scheme is selected as the number of feedback increases. 8. The WTRU of claim 1, wherein the amount of feedback is based on the number of ACK/NACKs in the feedback message. 9. A Node-B configured to transmit multiple transport blocks (TB)s, the Node-B comprising: a transmitter and processor configured to, in one transmission time interval (TTI), transmit control information for each of a plurality of TBs, and to utilize the control information to transmit the plurality of TBs; anda receiver and processor configured to receive and decode a feedback message that includes a channel quality indicator (CQI) and indicates successful or unsuccessful receipt of each of the plurality of TBs at a wireless transmit/receive unit (WTRU), wherein the feedback message is received and decoded based on a modulation and coding scheme that is associated with the amount of feedback. 10. The Node-B of claim 9, wherein the transmitter and processor is further configured to transmit a separate cyclic redundancy check (CRC) for each of the plurality of TBs. 11. The Node-B of claim 9, wherein the feedback message includes a channel quality indicator (CQI) for each of a plurality of multiple-input multiple-output (MIMO) streams. 12. The Node-B of claim 9, wherein the control information includes, for each TB of the plurality of TBs, a modulation and coding scheme (MCS) and Hybrid automatic repeat request (HARQ) information, wherein the HARQ information for each TB includes a redundancy version. 13. The Node-B of claim 9, wherein the control information includes an allocation for each TB of the plurality of TBs to a different spatial stream. 14. The Node-B of claim 9, wherein feedback for each TB of the plurality of TBs is concatenated in feedback message. 15. The Node-B of claim 9, wherein a more robust modulation and coding scheme is selected at the WTRU as the number of feedback increases. 16. The Node-B of claim 9, wherein the amount of feedback is based on the number of ACK/NACKs in the feedback message. 17. A method performed by wireless transmit/receive unit (WTRU) for receiving multiple transport blocks (TB)s, the method comprising: receiving a control information for each of a plurality of TBs in a transmission time interval (TTI);utilizing the control information to receive the plurality of TBs the TTI;generating a feedback message that includes a channel quality indicator (CQI) and indicates successful or unsuccessful receipt of each of the plurality of TBs;determining whether to include a cyclic redundancy check (CRC) with the feedback message;based on the amount of feedback, selecting a coding scheme for the feedback message; andtransmitting the feedback message using the selected coding scheme. 18. The method of claim 17, further comprising: receiving a separate cyclic redundancy check (CRC) for each of the plurality of TBs. 19. The method of claim 17, wherein the feedback message includes a channel quality indicator (CQI) for each of a plurality of multiple-input multiple-output (MIMO) streams. 20. The method of claim 17, wherein the control information includes, for each TB of the plurality of TBs, a modulation and coding scheme (MCS) and Hybrid automatic repeat request (HARQ) information, wherein the HARQ information for each TB includes a redundancy version. 21. The method of claim 17, wherein the control information includes an allocation for each TB of the plurality of TBs, to a different spatial stream. 22. The method of claim 17, wherein feedback for each TB of the plurality of TBs is concatenated in feedback message. 23. The method of claim 17, wherein a more robust coding scheme is selected as the number of feedback increases. 24. The method of claim 17, wherein the amount of feedback is based on the number of ACK/NACKs in the feedback message.
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