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US08363563B2 Apparatus and method for delay time computation and delay compensation between base station and remote radio frequency unit in broadband wireless access system 有权
标题翻译：宽带无线接入系统中基站与远程射频单元之间的延迟时间计算和延迟补偿的装置和方法
公开(公告)号：US08363563B2
公开(公告)日：2013-01-29
申请号：US12683663
申请日：2010-01-07
申请人： Tae-Hwan Ko , Wook Kim , Ik-Gon Kim , Jae-Jin Kim , Hyun-Jin Yoon , Ji-Yong Lee
发明人： Tae-Hwan Ko , Wook Kim , Ik-Gon Kim , Jae-Jin Kim , Hyun-Jin Yoon , Ji-Yong Lee
IPC分类号： H04L12/26
CPC分类号： H04L43/0852
摘要： An apparatus and method for delay time computation and delay compensation between a Base Station (BS) and a remote Radio Frequency (RF) unit in a broadband wireless access system are provided. In a method of operating an apparatus for determining a delay time to compensate for delay between a BS modem card and a remote RF unit in a wireless access system, the method includes determining a process delay time required when traffic data is output from the BS modem card to an antenna of the remote RF unit in a state where a reference cable having a length short enough to neglect a cable delay time is connected between the BS modem card and the remote RF unit, determining a cable delay time required when a sync pulse signal is transmitted through a cable used in actual system operation between the BS modem card and the remote RF unit, and determining a time for outputting traffic data at an earlier time from a modem included in the BS modem card by using the determined process delay time and cable delay time.
摘要翻译：提供了一种在宽带无线接入系统中的基站（BS）和远程射频（RF）单元之间的延迟时间计算和延迟补偿的装置和方法。在一种操作用于确定延迟时间以补偿无线接入系统中的BS调制解调器卡和远程RF单元之间的延迟的装置的方法中，所述方法包括确定当从BS调制解调器输出业务数据时所需的处理延迟时间卡到远程RF单元的天线，其中具有足够短的长度以忽略电缆延迟时间的参考电缆连接在BS调制解调器卡和远程RF单元之间，确定当同步脉冲信号通过在BS调制解调器卡和远程RF单元之间的实际系统操作中使用的电缆传输，并且通过使用确定的处理延迟时间确定从包括在BS调制解调器卡中的调制解调器在较早时间输出业务数据的时间和电缆延迟时间。

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