Invention Grant
- Patent Title: Method and apparatus for acquiring uplink and downlink synchronization between a plurality of base stations and a terminal in a cooperative communication network
- Patent Title (中): 用于获取多个基站和协作通信网络中的终端之间的上行链路和下行链路同步的方法和装置
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Application No.: US13841232Application Date: 2013-03-15
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Publication No.: US08937938B2Publication Date: 2015-01-20
- Inventor: Jun-Woo Kim , Hyeong Sook Park , Hoon Lee , Seungjae Bahng , Youn Ok Park
- Applicant: Electronics and Telecommunications Research Institute
- Applicant Address: KR Daejeon
- Assignee: Electronics and Telecommunications Research Institute
- Current Assignee: Electronics and Telecommunications Research Institute
- Current Assignee Address: KR Daejeon
- Agency: Rabin & Berdo, P.C.
- Priority: KR10-2012-0069449 20120627
- Main IPC: H04J3/06
- IPC: H04J3/06 ; H04W56/00 ; H04W48/20
Abstract:
There is provided a method for acquiring and modifying uplink and downlink synchronization, by which, if there is a possibility of ISI occurring due to incorrect downlink synchronization of a terminal with a base station, the terminal receives a ranging response from the base station, modifies incorrect downlink synchronization, and acquires uplink synchronization in accordance with modified downlink synchronization. The method for acquiring and modifying uplink and downlink synchronization efficiently prevents, in a cooperative communication network, discrepancy in signal transmission synchronization between the base stations, excessive attenuation of a transmitted signal, or a delay caused by a difference in reflection paths.
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