发明名称 |
METHOD OF ASSIGNING AN UPLINK RANDOM ACCESS CHANNEL IN A CDMA MOBILE COMMUNICATION SYSTEM |
摘要 |
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. |
申请公布号 |
EP1198908(A1) |
申请公布日期 |
2002.04.24 |
申请号 |
EP20010938790 |
申请日期 |
2001.06.12 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
CHOI, Sung-Ho;LEE, Kook-Heui;LEE, Hyun-Woo;KWAK, Byung-Jae;PARK, Seong-Ill;HWANG, Sung-Oh;KIM, Jae-Yoel |
分类号 |
H04B7/005;H04W52/50;H04W56/00;H04W74/08 |
主分类号 |
H04B7/005 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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