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:
Nov. 27, 2012
Filed:
Jun. 19, 2008
Dong-hahk Lee, Seoul, KR;
Ra-mi Lee, Seoul, KR;
Seong-soo Park, Seoul, KR;
Sang-shin Lee, Seoul, KR;
Jae-hwang Yu, Seoul, KR;
Jong-tae Ihm, Gyeonggi-do, KR;
Duk-kyung Kim, Incheon, KR;
Dong-Hahk Lee, Seoul, KR;
Ra-Mi Lee, Seoul, KR;
Seong-Soo Park, Seoul, KR;
Sang-Shin Lee, Seoul, KR;
Jae-Hwang Yu, Seoul, KR;
Jong-Tae Ihm, Gyeonggi-do, KR;
Duk-Kyung Kim, Incheon, KR;
SK Telecom Co., Ltd., , KR;
Abstract
Disclosed is a method and system for estimating an adaptive joint channel in a CDMA system based on TDD. The method includes the steps of a) receiving activity information of a mobile terminal; b) parsing the activity information, and transmitting a midamble sequence to the mobile terminal when a result of the parsing shows that the mobile terminal is in an ON state; c) conducting adaptive joint channel estimation by using the midamble sequence in the mobile terminal; and d) conducting adaptive joint detection by using a channel impulse response of the mobile terminal, obtained as a result of conducting the adaptive joint channel estimation. The method and system decreases the complexity in channel estimation and additionally increases the accuracy of channel estimation by reducing transmission power consumption and eliminating unnecessary interference.