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1. 发明申请

WO2011023592A1 WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统
公开(公告)号：WO2011023592A1
公开(公告)日：2011-03-03
申请号：PCT/EP2010/061960
申请日：2010-08-17
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , IBM UNITED KINGDOM LIMITED , LIN, Yong Hua , ZHU, Zhen Bo , CHEN, Lin , WANG, Qing , YAN, Rong , CHEN, Jian Wen
发明人： LIN, Yong Hua , ZHU, Zhen Bo , CHEN, Lin , WANG, Qing , YAN, Rong , CHEN, Jian Wen
IPC分类号： H04W56/00 , H04W88/08
CPC分类号： H04W56/004 , H04W56/0055 , H04W88/085
摘要： The present invention discloses a remote radio head unit, a wireless communication system base station, and a data transmission synchronization method thereof. The wireless communication system base station comprises a remote radio head (RRH) and a baseband unit (BBU) communicably connected through a network, and wherein the BBU is used to process and transmit downlink data to the RRH, said wireless communication system base station further comprises: a time-delay measurement unit in the RRH which is used to measure a time-delay for the downlink data to arrive at the RRH from the BBU; a time-delay notification unit in the RRH for notifying from the RRH to the BBU of time-delay data on the time-delay measured by the time-delay measurement unit; a synchronization unit in the BBU for advancing the starting time for the BBU to process and transmit the downlink data by an amount of time obtained based on the time-delay data notified by the time-delay notification unit. The present invention can reduce or even eliminate the RRH reception time-delay caused by the BBU processing time-delay and data transmission jitter by measuring the time-delay for the downlink data frame to arrive at the RRH of the base station, and correcting the timing pulse for starting the downlink data processing and transmission on the BBU side.
摘要翻译：本发明公开了一种远程无线电头单元，无线通信系统基站及其数据传输同步方法。无线通信系统基站包括通过网络可通信地连接的远程无线电头（RRH）和基带单元（BBU），并且其中BBU用于处理和发送下行链路数据到RRH，所述无线通信系统基站进一步包括：RRH中的时间延迟测量单元，用于测量下行链路数据从BBU到达RRH的时间延迟; RRH中的延时通知单元，用于从RRH向BBU通知由延时测量单元测量的延时数据; BBU中的同步单元，用于使BBU的开始时间提前，以基于由延时通知单元通知的时间延迟数据获得的时间量来处理和发送下行链路数据。本发明可以通过测量下行链路数据帧的时间延迟来达到基站的RRH，从而减少甚至消除由BBU处理时延和数据传输抖动引起的RRH接收延时，用于开始BBU侧的下行链路数据处理和传输的定时脉冲。

2. 发明公开

EP2443884A1 WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：无线通信系统
公开(公告)号：EP2443884A1
公开(公告)日：2012-04-25
申请号：EP10744577.7
申请日：2010-08-17
申请人： International Business Machines Corporation
发明人： LIN, Yong Hua , ZHU, Zhen Bo , CHEN, Lin , WANG, Qing , YAN, Rong , CHEN, Jian Wen
IPC分类号： H04W56/00 , H04W88/08
CPC分类号： H04W56/004 , H04W56/0055 , H04W88/085
摘要： The present invention discloses a remote radio head unit, a wireless communication system base station, and a data transmission synchronization method thereof. The wireless communication system base station comprises a remote radio head (RRH) and a baseband unit (BBU) communicably connected through a network, and wherein the BBU is used to process and transmit downlink data to the RRH, said wireless communication system base station further comprises: a time-delay measurement unit in the RRH which is used to measure a time-delay for the downlink data to arrive at the RRH from the BBU; a time-delay notification unit in the RRH for notifying from the RRH to the BBU of time-delay data on the time-delay measured by the time-delay measurement unit; a synchronization unit in the BBU for advancing the starting time for the BBU to process and transmit the downlink data by an amount of time obtained based on the time-delay data notified by the time-delay notification unit. The present invention can reduce or even eliminate the RRH reception time-delay caused by the BBU processing time-delay and data transmission jitter by measuring the time-delay for the downlink data frame to arrive at the RRH of the base station, and correcting the timing pulse for starting the downlink data processing and transmission on the BBU side.
摘要翻译：本发明公开了一种远程射频头单元，无线通信系统基站及其数据传输同步方法。无线通信系统基站包括通过网络可通信地连接的远程射频头（RRH）和基带单元（BBU），并且其中BBU用于处理下行链路数据并将其发送到RRH，所述无线通信系统基站进一步包括：RRH中的时延测量单元，用于测量下行数据从BBU到达RRH的时延; RRH中的延时通知单元，用于从RRH向BBU通知延时测量单元测量的延时的时延数据; BBU中的同步单元，用于提前BBU的开始时间，以根据延时通知单元通知的时延数据获得的时间量来处理和发送下行数据。本发明通过测量下行数据帧到达基站的RRH的时延，可以减少甚至消除BBU处理时延和数据传输抖动造成的RRH接收时延，用于启动BBU侧的下行链路数据处理和传输的定时脉冲。

3. 发明授权

EP2443884B1 WIRELESS COMMUNICATION SYSTEM 有权
公开(公告)号：EP2443884B1
公开(公告)日：2012-10-03
申请号：EP10744577.7
申请日：2010-08-17
申请人： International Business Machines Corporation
发明人： LIN, Yong Hua , ZHU, Zhen Bo , CHEN, Lin , WANG, Qing , YAN, Rong , CHEN, Jian Wen
IPC分类号： H04W56/00 , H04W88/08
CPC分类号： H04W56/004 , H04W56/0055 , H04W88/085

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