Apparatus and method for rate control in a broadband wireless communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsKi-Hwan Hwang, Sung-Kwon Jo, Jae-Hyok Lee, Myong-Hee Park
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Abstract
An apparatus and method for rate control in a wireless communication system are provided. The apparatus includes a preprocessor, a rate controller, a determiner, and a transmitter. The preprocessor determines feedback information on a physical layer packet using a feedback message of MAC ARQ. The rate controller updates a CQI reported from a receiver using the determined feedback information. The determiner determines an MCS using the updated CQI. The transmitter transmits data using the determined MCS.
Claims18
An apparatus for rate control in a wireless communication system, the apparatus comprising:
- a preprocessor configured to determine feedback information on a physical layer packet using a feedback message of a Media Access Control (MAC) Automatic Repeat reQuest (ARQ);
- a rate controller configured to update a Channel Quality Indicator (CQI) reported from a receiver using the determined feedback information;
- a determiner configured to determine a Modulation and Coding Scheme (MCS) using the updated Channel Quality Indicator;
- and
- a transmitter configured to transmit data using the determined Modulation and Coding Scheme,
- wherein the preprocessor is further configured to determine the feedback information on the physical layer packet based on a comparison of a size of at least one MAC Protocol Data Unit corresponding to a Negative ACKnowledgement with a size of at least one MAC Protocol Data Unit corresponding to an ACKnowledgement.
A method for rate control in a wireless communication system, the method comprising:
- determining feedback information on a physical layer packet using a feedback message of a Media Access Control (MAC) Automatic Repeat reQuest (ARQ);
- updating a Channel Quality Indicator (CQI) reported from a receiver using the determined feedback information;
- determining a Modulation and Coding Scheme (MCS) using the updated CQI;
- and
- transmitting data using the determined Modulation and Coding Scheme,
- wherein determining the feedback information on the physical layer packet further comprises:
- determining the feedback information on the physical layer packet based on a comparison of a size of at least one MAC Protocol Data Unit corresponding to a Negative ACKnowledgement with a size of at least one MAC Protocol Data Unit corresponding to an ACKnowledgement.
Dependencies are inferred from the claim text.