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    • 3. 发明授权
    • Mobile communication system, mobile station, and base station that calculates distance from mobile station
    • 移动通信系统,移动台和计算距离移动台的基站
    • US06701132B1
    • 2004-03-02
    • US09517483
    • 2000-03-02
    • Shoji FukuzawaTetsuhiko HirataMasashi YanoNorihisa MatsumotoToshiro Suzuki
    • Shoji FukuzawaTetsuhiko HirataMasashi YanoNorihisa MatsumotoToshiro Suzuki
    • H04B1700
    • H04W64/00G01S5/10
    • A mobile communication system that can obtain mobile station location information repeatedly at short intervals, without depending on whether base stations are synchronous or asynchronous, with lower loads and suppressed use of radio resources. For obtaining location information, a mobile station receives a paging channel periodically sent from a base station (Step 100), obtains the contents and the reception timing of this paging channel. Further, if it is necessary to obtain the transmission timing of the paging channel, that transmission timing is obtained (Steps 105, 106). The propagation delay of the paging channel or propagation delay differences between a plurality of periodic paging channels are calculated from the transmission timing and the reception timing of the paging channel (Step 107). The mobile station location information is calculated from the propagation delay or propagation delay difference, and outputted (Steps 108, 109, 110).
    • 一种移动通信系统,能够以较短的间隔重复地获取移动台位置信息,而不依赖于基站是同步的还是异步的,具有较低的负载并且抑制了无线电资源的使用。 为了获得位置信息,移动站接收从基站周期性地发送的寻呼信道(步骤100),获得该寻呼信道的内容和接收定时。 此外,如果需要获得寻呼信道的发送定时,则获得发送定时(步骤105,106)。 从寻呼信道的发送定时和接收定时计算寻呼信道的传播延迟或多个周期性寻呼信道之间的传播延迟差异(步骤107)。 从传播延迟或传播延迟差计算出移动站位置信息,并输出(步骤108,109,110)。
    • 4. 发明授权
    • Mobile communication systems, mobile stations, base station controllers and packet data service nodes
    • 移动通信系统,移动台,基站控制器和分组数据业务节点
    • US07085579B2
    • 2006-08-01
    • US09823135
    • 2001-03-30
    • Mika MizutaniSusumu MatsuiTetsuhiko HirataMasashi Yano
    • Mika MizutaniSusumu MatsuiTetsuhiko HirataMasashi Yano
    • H04B7/00H04M1/00H04Q7/20H04Q7/00
    • H04W72/10H04W52/0216H04W52/0254H04W72/0413H04W76/20
    • A mobile communication system with a packet switching function which enables sharing of radio resources among mobile stations, wherein a mobile station which has generated a request for communication quality assurance periodically sends a packet for requesting preferential use of a radio channel in order to prevent timeout of the state transition timer, timeout of which would cancel radio channel assignment to the mobile station and bring it into a dormant state if a certain period elapses without transmission or reception of a signal, so that it can remain in the active state and hold the radio channel continuously. In addition, when the mobile station requesting communication quality assurance moves from one cell to another or requests radio channel assignment, the base station controller controls the radio base station so that the mobile station can be assigned a radio channel by sending a priority request packet.
    • 一种具有分组交换功能的移动通信系统,其能够在移动台之间共享无线电资源,其中已经产生通信质量保证请求的移动台周期性地发送用于请求优先使用无线电信道的分组,以便防止超时 状态转换定时器,其超时将取消对移动台的无线电信道分配,并且如果在没有发送或接收信号的情况下经过一定时间段,则使其处于休眠状态,使得其可以保持在活动状态并保持无线电 频道不断。 此外,当请求通信质量保证的移动台从一个小区移动到另一个小区或请求无线电信道分配时,基站控制器控制无线电基站,使得移动台可以通过发送优先级请求分组被分配无线电信道。