Apparatus and method for transmitting and receiving packets in a mobile communication system supporting hybrid automatic repeat request

• US 9,439,191 B2
• Filed: 06/02/2015
• Issued: 09/06/2016
• Est. Priority Date: 08/07/2007
• Status: Expired

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Soeng-Hun, Van Lieshout, Gert Jan, Kwon, Hwan-Joon, Lee, Ju-Ho
• Primary Examiner(s): Skripnikov, Alex
• Application Number:
  US14/728,582
• Publication Number:
  US 20150264686A1
• Time in Patent Office: 462 Days
• Field of Search: None
• US Class Current: 1/1
• 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 1/1845 Combining techniques, e.g. code combining
• CPC Class Codes: H04L 1/1896 ARQ related signaling
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management

Abstract

An apparatus and a method are provided for operating HARQ in a mobile communication system. The method includes receiving a number of HARQ processes of a semi-persistent resource allocation and semi-persistent resource allocation interval information for a first transmission; receiving data in the first transmission at a subframe based on the semi-persistent resource allocation interval information; calculating a HARQ process IDentifier (ID) using the number of HARQ processes of the semi-persistent resource allocation, the semi-persistent resource allocation interval information, and time information; receiving control information including the HARQ process ID on an L1 control channel; receiving data in a retransmission based on the control information including the HARQ process ID; combining the data received in the first transmission and the data received in the retransmission; and decoding the combined data.

Claims

1. A method for receiving data in a communication system, the method comprising:

acquiring a number of hybrid automatic repeat request (HARQ) processes of a semi-persistent resource allocation and semi-persistent resource allocation interval information;

identifying the semi-persistent resource allocation for a subframe based on the semi-persistent resource allocation interval information and time information;

acquiring a HARQ process identifier (ID) using the number of HARQ processes of the semi-persistent resource allocation, the semi-persistent resource allocation interval information, and the time information;

acquiring soft buffer information; and

receiving data based on the semi-persistent resource allocation for the subframe, the HARQ process ID, and the soft buffer information.

2. The method of claim 1, further comprising setting the acquired HARQ process ID to a HARQ process ID for the subframe.

3. The method of claim 1, wherein the time information includes a System Frame Number (SFN) and a sub-frame number.

4. The method of claim 1, wherein the HARQ process ID is acquired based on:

HARQ process ID=s modulo n,

where s is an integer derived from t/i, wherein t represents the time information, i represents the semi-persistent resource allocation interval information, and n represents the number of HARQ processes of the semi-persistent resource allocation.

5. A method for transmitting data in a communication system, the method comprising:

transmitting information representative of a number of hybrid automatic repeat request (HARQ) processes of a semi-persistent resource allocation and semi-persistent resource allocation interval information;

allocating the semi-persistent resource for a subframe based on the semi-persistent resource allocation interval information and time information;

acquiring a HARQ process identifier (ID) using the number of HARQ processes of the semi-persistent resource allocation, the semi-persistent resource allocation interval information, and the time information;

transmitting soft buffer information; and

transmitting data based on the semi-persistent resource allocation for the subframe, the HARQ process ID, and the soft buffer information.

6. The method of claim 5, further comprising setting the acquired HARQ process ID to a HARQ process ID for the subframe.

7. The method of claim 5, wherein the time information includes a System Frame Number (SFN) and a sub-frame number.

8. The method of claim 5, wherein the HARQ process ID is acquired based on:

HARQ process ID=s modulo n,

wherein s is an integer derived from t/i, t represents the time information, i represents the semi-persistent resource allocation interval information, and n represents the number of HARQ processes of the semi-persistent resource allocation.

9. An apparatus for receiving data in a communication system, the apparatus comprising:

a controller configured to

acquire a number of hybrid automatic repeat request (HARQ) processes of a semi-persistent resource allocation and semi-persistent resource allocation interval information,

identify the semi-persistent resource allocation for a subframe based on the semi-persistent resource allocation interval information and time information,

acquire a HARQ process identifier (ID) using the number of HARQ processes of the semi-persistent resource allocation, the semi-persistent resource allocation interval information, and the time information; and

a receiver configured to receive data based on the semi-persistent resource allocation for the subframe, the HARQ process ID, and the soft buffer information.

10. The apparatus of claim 9, wherein the controller is further configured to set the acquired HARQ process ID to a HARQ process ID for the subframe.

11. The apparatus of claim 9, wherein the time information includes a System Frame Number (SFN) and a sub-frame number.

12. The apparatus of claim 9, wherein the HARQ process ID is acquired based on:

HARQ process ID=s modulo n,

wherein s is an integer derived from t/i, t represents the time information, i represents the semi-persistent resource allocation interval information, and n represents the number of HARQ processes of the semi-persistent resource allocation.

13. An apparatus for transmitting data in a communication system, the apparatus comprising:

a transmitter configured to transmit information representative of a number of hybrid automatic repeat request (HARQ) processes of a semi-persistent resource allocation and semi-persistent resource allocation interval information, transmit soft buffer information, and transmit data based on the semi-persistent resource allocation for a subframe, the HAW) process ID, and the soft buffer information; and

a controller configured to allocate the semi-persistent resource for the subframe based on the semi-persistent resource allocation interval information and time information, and acquire a HARQ process identifier (ID) using the number of HARQ processes of the semi-persistent resource allocation, the semi-persistent resource allocation interval information, and the time information.

14. The apparatus of claim 13, wherein the controller is further configured to set the acquired HARQ process ID to a HARQ process ID for the subframe.

15. The apparatus of claim 13, wherein the time information includes a System Frame Number (SFN) and a sub-frame number.

16. The apparatus of claim 13, wherein the HARQ process ID is acquired based on:

HARQ process ID=s modulo n,

wherein s is an integer derived from t/i, t represents the time information, i represents the semi-persistent resource allocation interval information, and n represents the number of HARQ processes of the semi-persistent resource allocation.