US 8,751,891 B2 · Apparatus and method for retransmitting data in wireless communication system

Abstract

An apparatus and a method for operating an Automatic Repeat reQuest (ARQ) in consideration of an operation state of a Hybrid Automatic Repeat reQuest (HARQ) in a wireless communication system. In the method, when an ARQ timer expires, operation state information of a HARQ module for controlling a HARQ is determined. Whether to delay generation of Negative ACKnowledge (NACK) information in consideration of the operation state information of the HARQ module, then determined. When determining to delay the generation of the NACK information, the generation of the NACK information is delayed for a delay time determined in consideration of the operation state information of the HARQ module.

Claims18

Dependent claims

A method for operating an Automatic Repeat reQuest (ARQ) at a reception end of a wireless communication system, the method comprising:

determining operation state information of a Hybrid Automatic Repeat reQuest (HARQ) module for controlling a HARQ, when an ARQ timer expires;
determining whether to delay generation of Negative ACKnowledge (NACK) information in consideration of the operation state information of the HARQ module;
and
when determining to delay the generation of the NACK information, delaying the generation of the NACK information for a delay time determined in consideration of the operation state information of the HARQ module.

1 more element

A reception end apparatus for operating an Automatic Repeat reQuest (ARQ) in a wireless communication system, the apparatus comprising:

a receiver for receiving data;
a Hybrid Automatic Repeat reQuest (HARQ) module for controlling a HARQ for data received via the receiver;
an ARQ timer that is driven when an ARQ module transmits ACKnowledge/Negative ACKnowledge (ACK/NACK) information;
and
the ARQ module for, when the ARQ timer expires, determining whether to delay generation of NACK information in consideration of operation state information of the HARQ module, and when determining to delay the generation of the NACK information, delaying the generation of the NACK information for a delay time determined in consideration of the operation state information of the HARQ module.

2 more elements

Dependencies are inferred from the claim text.

Apparatus and method for retransmitting data in wireless communication system

Life of this patent

Apparatus and method for retransmitting data in wireless communication system

Life of this patent

Abstract

Claims18