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

• US 9,083,500 B2
• Filed: 10/29/2013
• Issued: 07/14/2015
• 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:
  US14/066,597
• Publication Number:
  US 20140056261A1
• Time in Patent Office: 623 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 in a communication system, the method comprising:

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

transmitting, 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 indicating an error in the first data packet received by the receiver; and

transmitting, at a second transmission time, a redundancy version of the first data packet over the second subchannel and a third data packet originally scheduled for the second subchannel over the first subchannel, wherein the first subchannel and second subchannels have different spatial configurations.

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 1, wherein the transmission over the first or second subchannel uses a rate-matching scheme.

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

5. 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.

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

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

receiving resource allocation information of first and second subchannels from a transmitter in the communication system, the subchannels containing Orthogonal Frequency Division Multiplexing (OFDM) subcarriers;

receiving from the transmitter, at a first reception time, a first data packet over the first subchannel and a second data packet over the second subchannel;

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

receiving from the transmitter, at a second reception time, a redundancy version of the first data packet over the second subchannel and a third data packet originally scheduled for the second subchannel over the first subchannel, wherein the first subchannel and second subchannels have different spatial configurations; and

combining the data received over the first subchannel at the first reception time and the data received over the second subchannel at the second reception time to recover the first data packet.

8. The method of claim 7, wherein the reception of the data packets over the first or second subchannel are performed in accordance with an adaptive modulation and coding scheme.

9. The method of claim 7, wherein the reception of the data packets over the first or second subchannel are performed in accordance with a rate-matching scheme.

10. The method of claim 7, wherein the redundancy version of the first data packet is a progressive parity packet of the first data packet.

11. The method of claim 7, wherein the signal to the transmitter indicating an error in the received first data packet is a negative acknowledgement (NACK).

12. The method of claim 7, further comprising transmitting a channel quality indicator (CQI), channel measurements, or both to the transmitter.

13. A transmitter for a communication system, the transmitter comprising:

an apparatus configured to allocate first and second subchannels for signal transmissions, the subchannels containing Orthogonal Frequency Division Multiplexing (OFDM) subcarriers;

an apparatus configured to transmit, at a first transmission time, a first data packet over the first subchannel and a second data packet over the second subchannel;

an apparatus configured to receive a signal indicating an error in the first data packet received by a receiver; and

an apparatus configured to transmit, at a second transmission time, a redundancy version of the first data packet over the second subchannel and a third data packet originally scheduled for the second subchannel over the first subchannel, wherein the first subchannel and second subchannels have different spatial configurations.

14. A receiver for a communication system, the receiver comprising:

an apparatus configured to receive resource allocation information of first and second subchannels from a transmitter in the communication system, the subchannels containing Orthogonal Frequency Division Multiplexing (OFDM) subcarriers;

an apparatus configured to receive from the transmitter, at a first reception time, a first data packet over the first subchannel and a second data packet over the second subchannel;

an apparatus configured to transmit a signal to the transmitter indicating an error in the received first data packet;

an apparatus configured to receive, at a second reception time, a redundancy version of the first data packet over the second subchannel and a third data packet originally scheduled for the second subchannel over the first subchannel, wherein the first subchannel and second subchannels have different spatial configurations; and

an apparatus configured to combine the data received over the first subchannel at the first reception time and the data received over the second subchannel at the second reception time to recover the first data packet.