IP Library › Granted Patent US 8,359,509
Granted Patent B2
US 8,359,509 · App. 12/543,439 · Granted Jan 22, 2013

System and method for determination of reserved hybrid automatic repeat request identifiers

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Quick Facts
Patent No.
US 8,359,509
App. No.
12/543,439
Granted
Jan 22, 2013
Kind
B2
Abstract

A system and method are provided for determining a minimum number of reserved hybrid automatic repeat request (HARQ) process identifiers (IDs). The method includes, determining a minimum number of reserved HARQ Process IDs based upon a maximum transmission time and a period of a semi-persistent resource allocation.

Claims (19)

1. A system, comprising:

a processor configured to;

reserve a number of HARQ process IDs based upon a maximum transmission time and a period of a semi-persistent resource allocation; and

select HARQ process IDs from an available pool of HARQ process IDs, such that the number of selected HARQ process IDs for semi-persistent scheduled services is equal to a minimum number of reserved HARQ process IDs,

wherein the number of reserved HARQ process IDs is proportional to the maximum transmission time and is inverse proportional to the period of semi-persistent resource allocation, and

wherein the number of reserved HARQ process IDs is calculated by M=ceiling (MTT/P), where M is the number of reserved HARQ process IDs, MTT is the maximum transmission time and P is the period of a semi-persistent resource allocation.

2. The system of claim 1 , wherein the system is an access device.

3. The system of claim 1 , wherein the system is an enhanced node B.

4. The system of claim 1 , wherein the processor is further configured to transmit the number of the selected HARQ process IDs to a user agent.

5. The system of claim 4 , wherein the user agent is a user equipment.

6. A method comprising:

reserving, with a processor, a number of HARQ process IDs based upon a maximum transmission time and a period of a semi-persistent resource allocation; and

selecting HARQ process IDs from an available pool of HARQ process IDs, such that the number of selected HARQ process IDs for semi-persistent scheduled services is equal to a minimum number of reserved HARQ process IDs,

wherein the number of reserved HARQ process IDs is proportional to the maximum transmission time and is inverse proportional to the period of semi-persistent resource allocation, and

wherein the number of reserved HARQ process IDs is calculated by M=ceiling (MTT/P), where M is the number of reserved HARQ process IDs, MTT is the maximum transmission time and P is the period of a semi-persistent resource allocation.

7. The method of claim 6 , further comprising transmitting the number of selected HARQ process IDs to a user agent.

8. The method of claim 7 , wherein the user agent is a user equipment.

9. The method of claim 8 , wherein the number of selected HARQ process IDs is transmitted to the user equipment from an access device.

10. The method of claim 8 , wherein the number of selected HARQ process IDs is transmitted to the user equipment from an enhanced node B.