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    • 4. 发明授权
    • Channel selection in a cellular communication system
    • 蜂窝通信系统中的信道选择
    • US5507034A
    • 1996-04-09
    • US114347
    • 1993-09-01
    • Roland BodinHarald KallinLars M. LindrothWalter Ghisler
    • Roland BodinHarald KallinLars M. LindrothWalter Ghisler
    • H04W16/10H04W16/14H04W74/04H04W84/04H04Q7/38
    • H04W72/06H04W16/10H04W16/14H04W84/042
    • A method in a cellular communication system provides selection of a channel for use in a pending communications operation, the selection reducing the likelihood of co-channel interference. In each co-channel cell, frequencies from the cell's frequency group are ordered in a sequence. A different frequency in each cell is designated as having a highest priority. Successively lower priorities are then assigned, in each cell, to remaining frequencies in sequence. Then, in each cell, selection is made by identifying the available frequency having the highest priority. The method may be modified to provide for even distribution of hardware use by changing the priorities in each cell periodically. The method may also be modified for use in a fully synchronized time division multiple access (TDMA) system by performing the above steps with respect to channels instead of frequencies. The method may further be modified for use in a pseudo-synchronized TDMA system (i.e., one in which the TDMA time slots of one cell are slowly shifting with respect to the time slots of another cell) by selecting, instead of the highest priority channel, one having a lower priority based on a time difference between corresponding time slots in two co-channel cells.
    • 蜂窝通信系统中的一种方法提供了在未决通信操作中使用的信道的选择,该选择降低了同信道干扰的可能性。 在每个共通道单元中,来自单元的频率组的频率按顺序排列。 每个单元中的不同频率被指定为具有最高优先级。 然后在每个单元格中依次将顺序降低的优先顺序分配给剩余的频率。 然后,在每个小区中,通过识别具有最高优先级的可用频率进行选择。 可以修改该方法以通过周期性地改变每个小区中的优先级来提供硬件使用的均匀分布。 该方法还可以通过相对于信道而不是频率执行上述步骤而被修改用于完全同步的时分多址(TDMA)系统。 该方法还可以被修改用于伪同步TDMA系统(即,一个小区的TDMA时隙相对于另一个小区的时隙缓慢移位的方式),而不是选择最高优先级信道 基于两个同信道小区中对应的时隙之间的时间差,具有较低优先权的一个。
    • 7. 发明授权
    • Method and arrangement in a mobile unit
    • 移动单元中的方法和布置
    • US6118982A
    • 2000-09-12
    • US836346
    • 1997-05-12
    • Walter GhislerAnders Khullar
    • Walter GhislerAnders Khullar
    • H04B17/00H04B7/26H04W24/00
    • H04W24/00
    • A method and an arrangement for automatically monitoring a mobile telephone unit (ME) on the occurrence of at least one predetermined event in the mobile telephone unit (ME), for instance a call release. The method comprises the steps of: storing at least one monitoring program in a program generator (PRG) in the mobile unit (ME); storing in a comparison circuit (CC) in the mobile unit (ME) signal patterns representative of different types of trigger signals (TSI); sending a trigger signal (TSI) from a trigger device (TA) in the mobile unit to the comparison circuit (CC), the trigger signal (TSI) being contingent on the occurrent event; comparing the trigger signal (TSI) with the signal patterns; selecting a monitoring program according to the result of the comparison; and executing the selected monitoring program in the mobile unit (ME).
    • PCT No.PCT / SE95 / 01301 Sec。 371日期:1997年5月12日 102(e)日期1997年5月12日PCT提交1995年11月3日PCT公布。 公开号WO96 / 16523 日期:1996年5月30日一种在移动电话单元(ME)中发生至少一个预定事件(例如呼叫释放)时自动监视移动电话单元(ME)的方法和装置。 该方法包括以下步骤:将至少一个监控程序存储在移动单元(ME)中的程序生成器(PRG)中; 存储在表示不同类型的触发信号(TSI)的移动单元(ME)中的比较电路(CC)中的信号模式; 从移动单元中的触发装置(TA)向比较电路(CC)发送触发信号(TSI),所述触发信号(TSI)取决于所发生的事件; 将触发信号(TSI)与信号模式进行比较; 根据比较结果选择监控程序; 以及在所述移动单元(ME)中执行所选择的监视程序。
    • 8. 发明授权
    • Method and an arrangement relating to telecommunication systems
    • 与电信系统有关的方法和安排
    • US5960355A
    • 1999-09-28
    • US799039
    • 1997-02-10
    • Kenneth EkmanAnders HedlundRikard LundqvistWalter Ghisler
    • Kenneth EkmanAnders HedlundRikard LundqvistWalter Ghisler
    • G01S1/02G01S5/00G01S5/10H04W64/00H04Q7/20
    • H04W64/00G01S5/0009G01S5/10G01S1/022
    • The present invention teaches a method, system, terminals and service node for geographically positioning a first mobile radio terminal (MS1) within a radio network (100) comprising unsynchronised radio base stations by using a plurality of second fixed radio terminals (MS2) whereby the positions of the radio base stations and the second fixed radio terminals are known. First and second radio terminals (MS1,MS2) measure the relative receive times between the timing signals downlink (113-118) received from at least three radio base stations (BS1,BS2,BS3) and the second fixed radio terminals (MS2)send them to a service node (107) in the network (100) using them for calculating the transmission time offsets of the timing signals downlink. Calculating the position of the first mobile radio terminal (MS1) is performed either in the service node (107) in the network (100) or in the terminal (MS1) itself, after respectively sending relative receive time measurements from the first mobile radio terminal (MS1) to the service node (107), or broadcasting transmission time offset values and known positions from the service node (107) to the first radio terminal (MS1) to be positioned.
    • 本发明教导了一种用于通过使用多个第二固定无线电终端(MS2)在包括不同步的无线电基站的无线电网络(100)内对第一移动无线电终端(MS1)进行地理位置定位的方法,系统,终端和服务节点, 无线基站和第二固定无线终端的位置是已知的。 第一和第二无线电终端(MS1,MS2)测量从至少三个无线电基站(BS1,BS2,BS3)和第二固定无线终端(MS2)发送的下行链路(113-118)的定时信号之间的相对接收时间 它们使用它们用于计算下行链路的定时信号的传输时间偏移的网络(100)中的服务节点(107)。 在分别从第一移动无线电终端发送相对接收时间测量值之后,在网络(100)中的服务节点(107)或终端(MS1)本身中,执行计算第一移动无线电终端(MS1)的位置 (MS1)到服务节点(107),或者从服务节点(107)到第一无线终端(MS1)的发送时间偏移值和已知位置的广播被定位。
    • 10. 发明授权
    • Reestablishment
    • 重建
    • US5544224A
    • 1996-08-06
    • US402391
    • 1995-03-10
    • Bjorn E. R. JonssonWalter Ghisler
    • Bjorn E. R. JonssonWalter Ghisler
    • H04W76/02H04Q7/20
    • H04W76/028
    • A method and apparatus for reestablishing a call after a call has been disconnected or after the quality of the call has become bad is disclosed. A disconnected mobile station scans the signal strength of surrounding base stations and accesses the base station with the highest signal strength. The mobile station then initiates a new call back to a service node. The base station then assigns the mobile station a traffic channel and the service node reconnects the call. In addition, a method for reestablishing a call in any communication network after the call has been terminated in a normal fashion is disclosed.
    • 公开了一种在呼叫之后重新建立呼叫已经断开或在呼叫质量变差之后的方法和装置。 断开的移动台扫描周围基站的信号强度,并以最高的信号强度访问基站。 移动台然后发起一个新的呼叫回服务节点。 然后,基站向移动台分配业务信道,业务节点重新连接呼叫。 另外,公开了一种在通话结束后以任何通信网络重新建立呼叫的方法。