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:
Mar. 31, 2009
Filed:
Jun. 12, 2001
Sung-ho Choi, Songnam-shi, KR;
Kook-heui Lee, Songnam-shi, KR;
Hyun-woo Lee, Suwon-shi, KR;
Seong-ill Park, Gunpo-shi, KR;
Sung-oh Hwang, Yongin-shi, KR;
Jae-yoel Kim, Kunpo-shi, KR;
Byung-jae Kwak, Songnam-shi, KR;
Sung-Ho Choi, Songnam-shi, KR;
Kook-Heui Lee, Songnam-shi, KR;
Hyun-Woo Lee, Suwon-shi, KR;
Seong-Ill Park, Gunpo-shi, KR;
Sung-Oh Hwang, Yongin-shi, KR;
Jae-Yoel Kim, Kunpo-shi, KR;
Byung-Jae Kwak, Songnam-shi, KR;
Samsung Electronics Co., Ltd, , KR;
Abstract
Disclosed is an uplink random access procedure in an NB-TDD (Narrow Band Time Division Duplexing) system. To achieve an acknowledgement for data transmission from a UTRAN (UMTS Terrestrial Radio Access Network), a UE selects one of a plurality of sync codes by which the UTRAN identifies UEs that request data transmission and transmits the selected sync code in a time slot of a sub-frame to the UTRAN. Then, the UE receives the sync code information, information about the arrival time of the sync code, time update information indicating a variation in the transmission time of data, and power information indicating an adjustment to a power gain in the UE from the UTRAN on an FPACH (Fast Physical Access Channel). The UE transmits the data on a P-RACH (Physical Random Access Channel) mapped from the FPACH according to the time update information and the power information.