Mobile communication systems sharing a control channel
    3.
    发明授权
    Mobile communication systems sharing a control channel 失效
    移动通信系统共享一个控制通道

    公开(公告)号:US5884165A

    公开(公告)日:1999-03-16

    申请号:US601063

    申请日:1996-05-07

    摘要: In a mobile communication system, a data communication fixed station 3 and a voice communication fixed station 4 control a common service area, the connection between a mobile station 5 and the data communication fixed station 3 can be quickened. The data communication fixed station 3 notifies, sequentially, the voice communication fixed station 4 of channel informations (e.g., usable channels, traffic quantity). The voice communication fixed station 4 receives the channel information via a broadcast channel for voice communication, and broadcasts the channel information to the mobile stations. When the mobile station 5 is to execute packet communication with an ISDN 1 via the data communication fixed station 3, the mobile station 5 selects an appropriate channel among the channels broadcasted thereto, and notifies the data communication fixed station 3 of the selected channel. As such, since the mobile station 5 can determine the channel before the actual communication between the mobile station 5 and the data communication fixed station 3 takes place, the connection between the mobile station 5 and the data communication fixed station 3 can be quickened.

    摘要翻译: PCT No.PCT / JP95 / 02066 Sec。 371日期:1996年5月7日 102(e)日期1996年5月7日PCT提交1995年10月9日PCT公布。 公开号WO96 / 11552 日期1996年4月18日在移动通信系统中,数据通信固定站3和语音通信固定站4控制公共服务区域,可以加快移动站5与数据通信固定站3之间的连接。 数据通信固定站3顺序地通知语音通信固定站4的信道信息(例如,可用信道,业务量)。 语音通信固定站4通过用于语音通信的广播信道接收频道信息,并向频道广播频道信息。 当移动站5经由数据通信固定站3执行与ISDN 1的分组通信时,移动站5在广播的信道中选择适当的信道,并向数据通信固定站3通知所选择的信道。 这样,由于移动站5可以在进行移动站5和数据通信固定站3之间的实际通信之前确定信道,所以可以加快移动站5与数据通信固定站3之间的连接。

    Mobile communication system, network and mobile station
    7.
    发明授权
    Mobile communication system, network and mobile station 失效
    移动通信系统,网络和移动台

    公开(公告)号:US6157837A

    公开(公告)日:2000-12-05

    申请号:US786480

    申请日:1997-01-21

    IPC分类号: H04W36/08 H04Q7/20

    CPC分类号: H04W36/0061

    摘要: An object of the present invention is to reduce the control time required when a channel handover is performed in a mobile communication system. The conventional system has such shortcomings that a long time is required for re-designating a channel when a channel handover procedure results in failure. Particularly, in the common access type system, there is such a problem that since a channel handover is required to be performed several times during a channel handover procedure, an extra time is required for performing the handover procedure. The present invention has a plurality of base stations for covering the service area, and a mobile station for performing a communication with the base stations through radio channels. Here, the present invention is characterized in that the base stations notify the mobile station of a plurality of candidates when the mobile station performs a handover procedure, thereby improving the problem inherent in the conventional system that a single candidate is notified when a channel handover procedure is performed. Therefore, the present invention makes it possible to change the channel to the next candidate channel at high speed when the previous channel handover procedure results in failure.

    摘要翻译: 本发明的目的是减少在移动通信系统中执行信道切换时所需的控制时间。 常规系统具有这样的缺点:当信道切换过程导致故障时,需要很长时间来重新指定信道。 特别地,在公共接入型系统中,存在这样的问题,即由于在信道切换过程中需要多次执行信道切换,所以需要额外的时间来执行切换过程。 本发明具有用于覆盖服务区域的多个基站和用于通过无线电信道与基站进行通信的移动站。 这里,本发明的特征在于,当移动台执行切换过程时,基站通知移动台多个候选,从而改善了常规系统固有的问题,当通道切换程序 被执行。 因此,当先前的信道切换过程导致故障时,本发明使得可以以高速将信道改变为下一个候选信道。

    Apparatus for automatically forming a pointed end of raw pipe to be drawn
    10.
    发明授权
    Apparatus for automatically forming a pointed end of raw pipe to be drawn 失效
    用于自动形成要拉制的原料管尖端的装置

    公开(公告)号:US5060500A

    公开(公告)日:1991-10-29

    申请号:US603126

    申请日:1990-10-25

    IPC分类号: B21C5/00 B21J13/08

    CPC分类号: B21J13/08 B21C5/00 B21C5/003

    摘要: Apparatus for automatically forming pointed ends for raw metal pipes such as aluminum pipes subject to a drawing process, the pointed end of the pipes being of a reduced diameter convenient for the drawing process. A transporting device moves each raw pipe, which is in alignment with an axis of a pipe inlet of a swaging machine for producing the pointed ends, to a position below the inlet. Each pipe is raised by a lifting device to a height of the pipe inlet so as to be chucked by a gripping device which moves forward to insert a leading end of the pipe into the inlet. The lifting device and the raw pipe are kept out of contact with each other while the leading end is being processed to form the pointed end at the inserted end in the swaging machine whereby efficiency and productivity are improved for the process.

    摘要翻译: 用于自动形成用于诸如铝管的原料金属管的尖端的拉伸工艺的装置,管的尖端具有减小的直径,便于拉伸过程。 输送装置将与用于制造尖端的型锻机的管道入口的轴线对准的每个原料管移动到入口下方的位置。 每个管道由提升装置升高到管道入口的高度,以便通过向前移动的夹持装置夹紧管道的前端将其插入入口。 提升装置和原料管在前端被加工成彼此不接触的同时在插入端形成尖端,从而提高了加工效率和生产率。