The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 10, 2013
Filed:
Mar. 25, 2010
Sung-hyun Hwang, Daejeon, KR;
Jin Soo Wang, Busan, KR;
Jae Chul Park, Gyeonggi-Do, KR;
Yun Hee Kim, Gyeonggi-Do, KR;
Sung-Hyun Hwang, Daejeon, KR;
Jin Soo Wang, Busan, KR;
Jae Chul Park, Gyeonggi-Do, KR;
Yun Hee Kim, Gyeonggi-Do, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Industry Academic Cooperation Foundation Kyunghee University, Gyeonggi-do, KR;
Abstract
A method and apparatus for adaptively transmitting the same data, i.e., multicast/broadcast data, according to channel quality to a receiving group including one or more terminals that request the same service in a wireless network. A base station obtains feedback on channel quality indications (CQIs) from a plurality of terminals, selects a transmission technique that satisfies desired service quality based on the CQIs, and transmits data to the terminals included in a receiving group by using the selected transmission technique. The CQIs to be transmitted from the terminals in the receiving group to the base station are transmitted through a previously allocated common CQI feedback channel. In the present invention, in order to reduce a CQI feedback channel capacity, the base station does not allocate a common CQI feedback channel with respect to each reception terminal and allocates radio resources according to CQI levels. As radio resources are allocated according to CQI levels, a CQI feedback channel capacity may not be increased even when the number of terminals in the receiving group is increased and adaptive transmission may be efficiently performed.