USRE50056EActiveUtility

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

63
Assignee: SAMSUNG ELECTRONICS CO LTDPriority: Aug 7, 2007Filed: Sep 27, 2019Granted: Jul 23, 2024
Est. expiryAug 7, 2027(~1 yrs left)· nominal 20-yr term from priority
Inventors:Soeng-Hun KimGert Jan Van LieshoutHwan-Joon KwonJu-Ho Lee
H04L 1/1845H04L 5/0055H04L 1/1896H04W 72/11H04L 1/1812H04L 1/1822H04W 72/20H04W 72/0446
63
PatentIndex Score
0
Cited by
64
References
32
Claims

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

exact text as granted — not AI-modified
What is claimed is: 
     
       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 HARQ) 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.   
     
     
       17. A method for receiving data in a communication system, the method comprising:
 acquiring information on a quantity of hybrid automatic repeat request (HARQ) processes for a semi-persistent resource allocation and information indicating an interval of resources for the semi-persistent resource allocation, wherein consecutive HARQ process identifiers (IDs) from 0 to N−1 are used for the semi-persistent resource allocation in case that the quantity of HARQ processes for the semi-persistent resource allocation is N;   identifying a HARQ process ID by using the quantity of HARQ processes for the semi-persistent resource allocation, the interval for the semi-persistent resource allocation, and a system frame number; and   receiving data for an initial transmission, associated with the semi-persistent resource allocation, corresponding to the identified HARQ process ID.   
     
     
       18. The method of  claim 17 , wherein resource information for the semi-persistent resource allocation is acquired at a timing of data reception. 
     
     
       19. The method of  claim 17 , wherein the HARQ process ID is identified based on a modulo function for the interval for the semi-persistent resource allocation and the system frame number by the quantity of HARQ processes for the semi-persistent resource allocation. 
     
     
       20. The method of  claim 17 , further comprising identifying a size of a soft buffer for the data. 
     
     
       21. A method for transmitting data in a communication system, the method comprising:
 transmitting information representative of a quantity of hybrid automatic repeat request (HARQ) processes for a semi-persistent resource allocation and information indicating an interval of resources for the semi-persistent resource allocation, wherein consecutive HARQ process identifiers (IDs) from 0 to N−1 are used for the semi-persistent resource allocation in case that the quantity of HARQ processes for the semi-persistent resource allocation is N; and   transmitting data for an initial transmission, associated with the semi-persistent resource allocation, corresponding to a HARQ process ID,   wherein the HARQ process ID is based on the quantity of HARQ processes for the semi-persistent resource allocation, the interval for the semi-persistent resource allocation, and a system frame number.   
     
     
       22. The method of  claim 21 , wherein resource information for the semi-persistent resource allocation is acquired at a timing of data transmission. 
     
     
       23. The method of  claim 21 , wherein the HARQ process ID is identified based on a modulo function for the interval for the semi-persistent resource allocation and the system frame number by the quantity of HARQ processes for the semi-persistent resource allocation. 
     
     
       24. The method of  claim 21 , further comprising identifying a size of a soft buffer for the data. 
     
     
       25. An apparatus for receiving data in a communication system, the apparatus comprising:
 a controller configured to:
 acquire information on a quantity of hybrid automatic repeat request (HARQ) processes for a semi-persistent resource allocation and information indicating an interval of resources for the semi-persistent resource allocation, wherein consecutive HARQ process identifiers (IDs) from 0 to N−1 are used for the semi-persistent resource allocation in case that the quantity of HARQ processes for the semi-persistent resource allocation is N, and 
 identify a HARQ process ID by using the quantity of HARQ processes for the semi-persistent resource allocation, the interval for the semi-persistent resource allocation, and a system frame number; and 
   a receiver configured to receive data for an initial transmission, associated with the semi-persistent resource allocation, corresponding to the identified HARQ process ID.   
     
     
       26. The apparatus of  claim 25 , wherein resource information for the semi-persistent resource allocation is acquired at a timing of data reception. 
     
     
       27. The apparatus of  claim 25 , wherein the HARQ process ID is identified based on a modulo function for the interval for the semi-persistent resource allocation and the system frame number by the quantity of HARQ processes for the semi-persistent resource allocation. 
     
     
       28. The apparatus of  claim 25 , wherein the controller is further configured to identify a size of a soft buffer for the data. 
     
     
       29. An apparatus for transmitting data in a communication system, the apparatus comprising:
 a transmitter configured to:
 transmit information representative of a quantity of hybrid automatic repeat request (HARQ) processes for a semi-persistent resource allocation and information indicating an interval of resources for the semi-persistent resource allocation, wherein consecutive HARQ process identifiers (IDs) from 0 to N−1 are used for the semi-persistent resource allocation in case that the quantity of HARQ processes for the semi-persistent resource allocation is N, and 
 transmit data for an initial transmission, associated with the semi-persistent resource allocation, corresponding to a HARQ process ID, 
   wherein the HARQ process ID is based on the quantity of HARQ processes for the semi-persistent resource allocation, the interval for the semi-persistent resource allocation, and a system frame number.   
     
     
       30. The apparatus of  claim 29 , wherein resource information for the semi-persistent resource allocation is acquired at a timing of data transmission. 
     
     
       31. The apparatus of  claim 29 , wherein the HARQ process ID is identified based on a modulo function for the interval for the semi-persistent resource allocation and the system frame number by the quantity of HARQ processes for the semi-persistent resource allocation. 
     
     
       32. The apparatus of  claim 29 , wherein the controller is further configured to identify a size of a soft buffer for the data.

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