Apparatus and method for automatic retransmission request (ARQ) feedback in wireless communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsYoung-Bin Chang, Taori Rakesh, Agiwal Anil
Life of this patent
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Abstract
An apparatus and a method for Automatic Repeat reQuest (ARQ) feedback in a wireless communication system are provided. A method for the ARQ feedback at a receiving end includes when receiving an ARQ block from the transmitting end, checking for error in the ARQ block, when the ARQ block has no error, initializing and driving a timer used for determining whether to perform the ARQ feedback according to reception of a next ARQ block, when receiving the next ARQ block without error before the timer expires, initializing and driving the timer, and when the timer expires, performing the ARQ feedback in relation to at least one ARQ block received without error.
Claims22
A method for performing Automatic Repeat reQuest (ARQ) feedback to transmit an indication of one of success and failure of reception of at least one ARQ block to a transmitting end at a receiving end in a wireless communication system, the method comprising:
- when receiving a first new ARQ block from the transmitting end, initializing a timer;
- when receiving a second new ARQ block from the transmitting end, initializing the timer;
- and
- when the timer expires, performing the ARQ feedback.
A method for identifying Automatic Repeat reQuest (ARQ) feedback information indicative of one of reception success and failure of at least one ARQ block transmitted from a receiving end, at a transmitting end in a wireless communication system, the method comprising:
- to transmit the ARQ block, initializing a timer;
- and
- when the timer expires, requesting the ARQ feedback to the receiving end.
A method for identifying Automatic Repeat reQuest (ARQ) feedback information indicative of one of reception success and failure of at least one ARQ block transmitted from a receiving end, at a transmitting end in a wireless communication system, the method comprising:
- to transmit the ARQ block, identifying the number of ARQ blocks transmitted to the receiving end but not identified with the ARQ feedback information or an elapsed time from a transmission time of a first ARQ block to the transmission time of the ARQ block;
- estimating the ARQ feedback time of the receiving end by taking into account the number of ARQ blocks or the elapsed time;
- when the ARQ feedback time of the receiving end arrive, initializing a timer;
- and
- when the timer expires, requesting the ARQ feedback to the receiving end.
An apparatus for performing Automatic Repeat reQuest (ARQ) feedback to transmit an indication of one of success and failure of reception of at least one ARQ block to a transmitting end at a receiving end in a wireless communication system, the apparatus comprising:
- a receiver for receiving the ARQ block;
- a timer for initializing, when receiving a new ARQ block from the transmitting end;
- a ARQ controller for controlling to perform the ARQ feedback when the timer is expired;
- and
- a transmitter for transmitting the ARQ feedback information to the transmitting end under control of the ARQ controller,
- wherein the timer initializes when receiving a new ARQ block before the timer expires.
An apparatus for identifying Automatic Repeat reQuest (ARQ) feedback information indicative of one of reception success and failure of at least one ARQ block transmitted from a receiving end, at a transmitting end in a wireless communication system, the apparatus comprising:
- an ARQ controller for generating one or more ARQ blocks, for assigning a sequence to the ARQ blocks, and for controlling to request ARQ feedback to the receiving end when expired a timer;
- a transmitter for transmitting the ARQ blocks;
- and
- the timer for initializing when the transmitter transmits the ARQ blocks.
An apparatus for identifying Automatic Repeat reQuest (ARQ) feedback information indicative of one of reception success and failure of at least one ARQ block transmitted from a receiving end, at a transmitting end in a wireless communication system, the apparatus comprising:
- a transmitter for transmitting the ARQ blocks;
- an ARQ variable controller for estimating an ARQ feedback time of the receiving end by taking into account the number of ARQ blocks transmitted to the receiving end but not identified with the ARQ feedback information or an elapsed time from a transmission time of a first ARQ block to the transmission time of the ARQ block;
- a timer for initializing when the ARQ feedback time of the receiving end arrive;
- and
- an ARQ controller for controlling to request ARQ feedback to the receiving end when a timer expires.
Dependencies are inferred from the claim text.