Methods and apparatus for multi-carrier communication systems with automatic repeat request (ARQ)

• US 9,509,451 B2
• Filed: 07/10/2015
• Issued: 11/29/2016
• Est. Priority Date: 01/29/2004
• Status: Active Grant

• Current Assignee: Guangdong OPPO Mobile Telecommunications Corporation Limited
• Original Assignee: Neocific Incorporated
• Inventors: Li, Xiaodong, Huang, Haiming, Lo, Titus, Li, Kemin
• Primary Examiner(s): Ton, Dang
• Assistant Examiner(s): KAVLESKI, RYAN C
• Application Number:
  US14/796,907
• Publication Number:
  US 20150318961A1
• Time in Patent Office: 508 Days
• Field of Search: 370/320, 370/335, 370/465, 714/748
• US Class Current: 1/1
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 1/0013 Rate matching, e.g. puncturing or repetition of code symbols
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/1671 the supervisory signal being transmitted together with control information
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1816 with retransmission of the same, encoded, message
• CPC Class Codes: H04L 1/1819 with retransmission of additional or different redundancy
• CPC Class Codes: H04L 1/1822 involving configuration of automatic repeat request [ARQ] with parallel processes
• CPC Class Codes: H04L 1/1845 Combining techniques, e.g. code combining
• CPC Class Codes: H04L 2001/0092 Error control systems characterised by the topology of the transmission link
• CPC Class Codes: H04L 5/003 Arrangements for allocating sub-channels of the transmission path
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 74/002 Transmission of channel access control information

Abstract

Hybrid ARQ is employed in a multi-carrier communication system for retransmission of erroneous packets by taking advantage of time/frequency/space diversity and by combining ARQ functions at physical layer and MAC layers, making the multi-carrier system more robust in a high packet-error environment.

Claims

1. A method for a transmitter with multiple transmission antennas in a wireless communication system, the method comprising:

configuring a first subchannel and a second subchannel in the spatial domain for signal transmissions to a receiver in the communication system, the first and second subchannels containing Orthogonal Frequency Division Multiplexing (OFDM) subcarriers;

transmitting concurrently to the receiver, at a first transmission time a first data packet over the first subchannel and a second data packet over the second subchannel;

receiving a signal from the receiver, the signal indicating an error in the first data packet received by the receiver;

providing, to the receiver, information regarding a retransmission process for a data packet received in error, the information indicating a use of subchannel swapping for retransmission; and

transmitting concurrently to the receiver, at a second transmission time, a redundancy version of the first data packet over the second subchannel and a third packet over the first subchannel, the third packet being swapped from transmission over the second subchannel.

2. The method of claim 1, wherein the transmission over the first or second subchannel uses an adaptive modulation and coding scheme.

3. The method of claim 2, wherein the retransmission process uses an adaptive modulation and coding scheme for retransmission of the redundancy version of the first data packet.

4. The method of claim 1, wherein the transmission over the first or second subchannel uses a rate-matching scheme.

5. The method of claim 1, wherein the redundancy version of the first data packet is a progressive parity packet of the first data packet.

6. The method of claim 1, wherein the signal from the receiver indicating an error in the first data packet is a negative acknowledgement (NACK) from the receiver.

7. The method of claim 1, further comprising receiving a channel quality indicator (CQI) or channel measurements from the receiver.

8. A wireless communication system with multiple transmission antennas, the wireless communication system comprising:

a transmitter to;

allocate a first subchannel and a second subchannel in the spatial domain for signal transmissions to a receiver in the communication system, the first and second subchannels containing Orthogonal Frequency Division Multiplexing (OFDM) subcarriers;

transmit concurrently to the receiver, at a first transmission time, a first data packet over the first subchannel and a second data packet over the second subchannel; and

receive a signal from the receiver, the signal indicating an error in the first data packet received by the receiver; and

a scheduler to provide to the receiver information regarding a retransmission process for a data packet received in error, the control information indicating a use of subchannel swapping for retransmission;

wherein the transmitter is further configured to transmit concurrently to the receiver, at a second transmission time, a redundancy version of the first data packet over the second subchannel and a third packet over the first subchannel, the third packet being swapped from transmission over the second subchannel.

9. The system of claim 8, wherein the transmitter is further configured to receive a channel quality indicator (CQI) or channel measurements from the receiver.

10. A method for a receiver in a wireless communication system, the method comprising:

concurrently receiving from a transmitter, at a first reception time, a first data packet over a first subchannel and a second data packet over a second subchannel, wherein the first and second subchannels have different spatial configurations;

transmitting a signal to the transmitter, the signal indicating an error in the first data packet received by the receiver;

receiving information regarding a retransmission process for a data packet received in error, the information indicating a use of subchannel swapping for retransmission by the transmitter; and

concurrently receiving, at a second reception time, a redundancy version of the first data packet over the second subchannel and a third packet over the first subchannel, the third packet being swapped from transmission over the second subchannel.

11. The method of claim 10, wherein the reception over the first or second subchannel uses an adaptive modulation and coding scheme.

12. The method of claim 11, wherein the retransmission process uses an adaptive modulation and coding scheme for retransmission of the redundancy version of the first data packet.

13. The method of claim 10, wherein the reception over the first or second subchannel uses a rate-matching scheme.

14. The method of claim 10, wherein the redundancy version of the first data packet is a progressive parity packet of the first data packet.

15. The method of claim 10, wherein the transmitted signal to the transmitter is a negative acknowledgement (NACK).

16. The method of claim 10, further comprising transmitting a channel quality indicator (CQI) or channel measurements to the transmitter.

17. A wireless communication system, the wireless communication system comprising:

a receiver to concurrently receive from a transmitter, at a first reception time, a first data packet over a first subchannel and a second data packet over a second subchannel, wherein the first and second subchannels have different spatial configurations; and

an acknowledgement transmitter configured to transmit a signal to the transmitter, the signal indicating an error in the first data packet received by the receiver;

wherein the receiver is further configured to;

receive information regarding a retransmission process for a data packet received in error, the information indicating a use of subchannel swapping for retransmission by the transmitter; and

concurrently receive, at a second reception time, a redundancy version of the first data packet over the second subchannel and a third packet over the first subchannel, the third packet being swapped from transmission over the second subchannel.

18. The system of claim 17, wherein the acknowledgement transmitter is further configured to transmit a channel quality indicator (CQI) or channel measurements to the transmitter.