首页> 外国专利> APPARATUS AND A METHOD FOR SWITCHING A TRANSMIT DIVERSITY MODE IN A MOBILE COMMUNICATION SYSTEM USING A TRANSMIT DIVERSITY, PARTICULARLY FOR SETTING A WEIGHT VALUE WHEN CLOSED-LOOP TRANSMIT DIVERSITY MODE IS CHANGED BY USING PREVIOUSLY USED WEIGHT VALUE INFORMATION

APPARATUS AND A METHOD FOR SWITCHING A TRANSMIT DIVERSITY MODE IN A MOBILE COMMUNICATION SYSTEM USING A TRANSMIT DIVERSITY, PARTICULARLY FOR SETTING A WEIGHT VALUE WHEN CLOSED-LOOP TRANSMIT DIVERSITY MODE IS CHANGED BY USING PREVIOUSLY USED WEIGHT VALUE INFORMATION

机译：使用传输多样性在移动通信系统中切换传输多样性模式的装置和方法，特别是当通过使用先前使用的权重信息来更改闭环传输多样性模式时，设置权重值

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PURPOSE: An apparatus and a method for switching a transmit diversity mode in a mobile communication system using a transmit diversity, particularly for setting a weight value when a closed-loop transmit diversity mode is changed by using previously used weight value information, are provided to minimize degradation of performance of a transmission diversity by reflecting a state of a radio channel. CONSTITUTION: A DPCCH(Dedicated Physical Control CHannel) and a DPDCH(Dedicated Physical Data CHannel) are multiplexed to form a DPCH(Dedicated Physical CHannel). A DPCH signal is scrambled by scrambling codes through a multiplier(904). The scrambled DPCH signal is multiplied by weight values(W1.W2) by multipliers(906,908) and each calculated signal is transmitted through antenna1(914) and antenna2(916). An FBI(FeedBack Information) message determining unit(918) analyzes an FBI message transmitted through the uplink DPCCH and transfers an analysis result to a mode change determining unit(922). The mode change determining unit(922) determines whether a transmit diversity mode has been changed. If the transmit diversity mode has been changed, the FBI message determining unit(918) determines a weight value of each antenna. A weight value generator(920) generates a pre-set weight value according to the change of the mode and transfers the generated weight value to the multipliers(906,908). The weight value generator(920) is informed that the mode has not been changed by the mode change determining unit(922), it generates a weight value to be used in a base station. The signal transmitted to the antenna1(914) and antenna2(916) are multiplied with specific pilot channel signals(CPICH1,CPICH2) set by each antenna by multipliers(910,912).

机译：目的：提供一种用于在使用发射分集的移动通信系统中切换发射分集模式的设备和方法，特别是用于当通过使用先前使用的权重值信息来改变闭环发射分集模式时设置权重值。通过反映无线电信道的状态来最小化传输分集的性能下降。组成：DPCCH（专用物理控制通道）和DPDCH（专用物理数据通道）被复用以形成DPCH（专用物理通道）。通过乘法器（904），通过加扰码对DPCH信号进行加扰。加扰器（906,908）将加扰后的DPCH信号乘以权重值（W1.W2），并且每个计算出的信号都通过天线1（914）和天线2（916）发送。 FBI（反馈信息）消息确定单元（918）分析通过上行链路DPCCH发送的FBI消息，并将分析结果传送给模式改变确定单元（922）。模式改变确定单元（922）确定发送分集模式是否已经改变。如果发送分集模式已经改变，则FBI消息确定单元（918）确定每个天线的权重值。权重值生成器（920）根据模式的改变生成预设的权重值，并将所生成的权重值传送给乘法器（906,908）。权重值生成器（920）被模式改变确定单元（922）通知模式尚未改变，其生成要在基站中使用的权重值。传输到天线1（914）和天线2（916）的信号与每个天线设置的特定导频信道信号（CPICH1，CPICH2）乘以乘法器（910,912）。

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公开/公告号KR20040098976A

专利类型
公开/公告日2004-11-26

原文格式PDF
申请/专利权人 SAMSUNG ELECTRONICS CO. LTD.;
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申请/专利号KR20030031334
发明设计人 LIM YEONG SEOK;
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申请日2003-05-16
分类号H04B7/06;
国家 KR
入库时间 2022-08-21 22:06:30

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