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1. 发明授权

US5570353A Method of transmitting and receiving power control messages in a CDMA cellular radio system 失效
标题翻译：在CDMA蜂窝无线电系统中发送和接收功率控制消息的方法
公开(公告)号：US5570353A
公开(公告)日：1996-10-29
申请号：US522325
申请日：1995-11-03
申请人： Ilkka Keskitalo , Kari Rikkinen , Tero Ojanpera
发明人： Ilkka Keskitalo , Kari Rikkinen , Tero Ojanpera
IPC分类号： H04B7/005 , H04B7/26
CPC分类号： H04W52/54 , H04B7/2628
摘要： The invention relates to a data transmission method in a CDMA cellular radio system, which comprises in each cell at least one base station (10) communicating with mobile stations (11, 12) within its coverage area and in which system the base station adjusts the transmitting power of the mobile stations within its area by means of power control massages. To enable coherent detection at the base station, according to the method the transmission on the traffic channel is performed both in the transmission direction from the mobile station to the base station and from the base station to the mobile station by using a similar frame structure. When the base station transmits a power control message to the mobile station by using bits of the frame structure of the traffic channel, the mobile station transmits a predetermined bit pattern to the base station in the corresponding bits of the other transmission direction of the traffic channel.
摘要翻译： PCT No.PCT / FI95 / 00007 Sec。 371日期：1995年11月3日 102（e）日期1995年11月3日PCT 1995年1月11日PCT PCT。出版物WO95 / 19664 日期：1995年7月20日本发明涉及CDMA蜂窝无线电系统中的数据传输方法，其中在每个小区中包括与其覆盖区域内的移动台（11,12）通信的至少一个基站（10），并且在哪个系统基站通过功率控制按钮调整其区域内的移动台的发射功率。为了在基站中实现相干检测，根据该方法，通过使用类似的帧结构，在从移动站到基站以及从基站到移动站的传输方向上都执行业务信道上的传输。当基站通过业务信道的帧结构的比特发送功率控制消息给移动台时，移动台在业务信道的另一个发送方向的相应比特中向基站发送预定的比特模式。

2. 发明授权

US5703873A Method and apparatus for synchronizing subscriber equipment with base stations in a CDMA radio network 失效
标题翻译：用于在CDMA无线电网络中同步用户设备与基站的方法和装置
公开(公告)号：US5703873A
公开(公告)日：1997-12-30
申请号：US453242
申请日：1995-05-30
申请人： Tero Ojanpera , Ilkka Keskitalo
发明人： Tero Ojanpera , Ilkka Keskitalo
IPC分类号： H04B1/707 , H04B7/26 , H04L7/00 , H04Q11/04 , H04J13/02
CPC分类号： H04W56/0085 , H04W92/10
摘要： A base station, a subscriber equipment, and a method for synchronizing the subscriber equipment with the transmission of the base station in a digital cellular radio network utilizing the CDMA multiple access method. In each cell of the network, at least one base station communicates with the subscriber equipment within its area, in which network the base station transmits a separate pilot channel provided with a predetermined spreading code. In order to facilitate the synchronization of the subscriber equipment, the base station transmits a data-modulated signal on the pilot channel.
摘要翻译：基站，用户设备以及使用CDMA多址方法在数字蜂窝无线电网络中同步用户设备与基站的传输的方法。在网络的每个小区中，至少一个基站与其区域内的用户设备进行通信，在该网络中，基站发送具有预定扩展码的单独导频信道。为了便于用户设备的同步，基站在导频信道上发送数据调制信号。

3. 发明授权

US5649320A Automatic frequency control loop and temperature compensation for a receiver 失效
标题翻译：接收机的自动频率控制回路和温度补偿
公开(公告)号：US5649320A
公开(公告)日：1997-07-15
申请号：US730182
申请日：1996-10-15
申请人： Veijo Korhonen , Tero Ojanpera
发明人： Veijo Korhonen , Tero Ojanpera
IPC分类号： H04B1/26 , H03J1/00 , H03L1/02 , H03L7/18 , H04B1/40
CPC分类号： H03J1/0066 , H03L1/026 , H04B1/405 , H04B1/403
摘要： A receiver and a method of setting the frequency of the reference signal in the receiver, the receiver comprising a voltage controlled crystal oscillator which provides the reference frequency for a synthesizer. The synthesizer in turn produces the local oscillator frequency signal in the receiver. Temperature fluctuations in the crystal are compensated for by microprocessor control of the oscillator. The reference frequency is accurately set by incrementaly scanning the signal channel until a signal of magnitude greater than a predetermined level is detected, whereupon the receiver locks onto said detected signal and instructs the oscillator to produce a reference frequency signal of a certain frequency according to the frequency of said detected signal.
摘要翻译：一种接收机和一种在接收机中设置参考信号的频率的方法，所述接收机包括为合成器提供参考频率的压控晶体振荡器。合成器又在接收机中产生本地振荡器频率信号。晶体的温度波动通过微处理器对振荡器的控制进行补偿。通过增量扫描信号通道来精确地设定参考频率，直到检测到大于预定电平的幅度信号，接收器锁定到所述检测信号上，并指示振荡器产生一定频率的基准频率信号，根据所述检测信号的频率。

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