专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US6026115A Rake receiver 失效
标题翻译：耙式接收机
公开(公告)号：US6026115A
公开(公告)日：2000-02-15
申请号：US912569
申请日：1997-08-18
申请人： Akihiro Higashi , Koji Ohno , Seizou Onoe
发明人： Akihiro Higashi , Koji Ohno , Seizou Onoe
IPC分类号： H04B1/707 , H04B15/00
CPC分类号： H04B1/7115
摘要： A RAKE receiver which is employed in a direct sequence spread spectrum communication system, and which can effectively receive multipath signals. A path searcher measures the amplitude of each path, selects N paths with larger amplitudes in descending order of magnitude, where N is the number of despreaders, and assigns the despreaders to the selected paths to despread the signals of the paths. This assignment of the despreaders to the paths is carried out such that a path with a large amplitude and a path with a small amplitude are assigned to adjacent despreaders and are input to the same pre-detection combiner. The outputs of the despreaders are combined by the pre-detection combiners, and detected by detectors whose outputs are RAKE combined by a post-detection combiner.
摘要翻译：一种RAKE接收机，用于直接序列扩频通信系统，可以有效地接收多径信号。路径搜索器测量每条路径的幅度，选择具有较大幅度的N个路径，其幅度按降序排列，其中N是去扩展器的数量，并将解扩展器分配给所选路径以对路径的信号进行解扩。解扩器到路径的这种分配被执行，使得具有大幅度的路径和具有小幅度的路径被分配给相邻的解扩器，并被输入到相同的预检测组合器。解扩器的输出由预检测组合器组合，并由检测器组合器进行RAKE组合的检测器检测。

2. 发明授权

US06339589B1 Frequency utilization method in mobile communication 有权
标题翻译：移动通信中的频率利用方法
公开(公告)号：US06339589B1
公开(公告)日：2002-01-15
申请号：US09145218
申请日：1998-09-01
申请人： Shinji Uebayashi , Etsuhiro Nakano , Seizou Onoe
发明人： Shinji Uebayashi , Etsuhiro Nakano , Seizou Onoe
IPC分类号： H04Q700
CPC分类号： H04W16/10
摘要： A method of frequency utilization in mobile communication which is capable of realizing efficient frequency utilization in the case where widths of the uplink communication frequency bandwidth and the downlink communication frequency bandwidth are different in mobile communication is disclosed. Two pieces of carriers U1 and U2 among the uplink carriers U1 to U6 are selected as selected carriers, carriers U1 to U6 of the uplink bandwidth Wu and carriers D1,1 to D1,6 of the first downlink bandwidth Wd1 are set in one-to-one correspondence, the selected carriers U1 and U2 and carriers D2,1 and D2,2 of the second downlink bandwidth Wd2 are set in one-to-one correspondence, the communications are carried out by using D1,1 and D2,1 as downlink carriers in the case of using the selected carrier U1 as an uplink carrier, and the communication are carried out by using only a corresponding carrier in the first downlink bandwidth Wd1 as a downlink carrier in the case of using a carrier other than the selected carrier as an uplink carrier.
摘要翻译：公开了一种移动通信中的频率利用方法，其能够在移动通信中上行通信频带宽度和下行通信频带宽度不同的情况下实现有效的频率利用。选择上行链路载波U1至U6中的两个载波U1和U2作为选择的载波，将上行链路带宽Wu的载波U1至U6和第一下行链路带宽Wd1的载波D1,1至D1,6设置为一个 - 一个对应，所选择的载波U1和U2以及第二下行链路带宽Wd2的载波D2,1和D2,2被一一对应地设置，通信使用D1,1和D2,1作为在使用选择的载波U1作为上行链路载波的情况下的下行链路载波，并且在使用除所选载波之外的载波的情况下，仅使用第一下行链路带宽Wd1中的相应载波作为下行链路载波来执行通信作为上行链路载波。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式