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    • 5. 发明公开
    • Alternating paging scheme
    • 交替需求分页方案
    • EP1601211A3
    • 2006-06-21
    • EP05010892.7
    • 2005-05-19
    • SYMBOL TECHNOLOGIES, INC.
    • Fuccello, James
    • H04L12/28
    • H04W84/022H04W88/185
    • Architecture to reduce or mitigate interference and performance degradation between a wireless local area network (WLAN) and a wireless personal area network (WPAN) device. The architecture defines a paging system that employs a modified paging sequence. Particularly, one aspect includes a frequency selection component, a packet scheduling component and a paging component. The frequency selection component defines a frequency protocol ( e.g. , adaptive frequency hopping (AFH)), the packet scheduling component defines an alternating paging method ( e.g. , alternating wireless media access (AWMA)) and the paging component employs the defined frequency protocol and the alternating paging method to generate a modified paging scheme. Additionally, the paging system can employ any non-collaborative frequency hopping protocol, collaborative paging method or channel mask to generate the modified paging sequence. When a connection is created, AWMA can be turned on and after the connection is removed, AWMA can be turned off.
    • 7. 发明公开
    • Paging method and apparatus
    • 分页方法和设备
    • EP1471662A3
    • 2004-11-17
    • EP04077074.5
    • 1995-06-15
    • DIGICOMM LTD.
    • Wong, Gabriel K.Y.Tsui, Po S.
    • H04B7/00H04Q7/10
    • H04W72/14H04W12/06H04W12/08H04W28/26H04W36/08H04W48/08H04W56/00H04W68/00H04W68/02H04W72/04H04W72/0446H04W74/002H04W74/04H04W74/06H04W76/10H04W84/02H04W84/022H04W84/025H04W88/022H04W88/185Y02D70/00
    • A two-way paging system utilizes four local frequencies for transmissions between pager units (22) and a central control station (20). A first local frequency (f1) carries a local clock; a second local frequency (f2) carries communications packets from the central control station to paging units; a third local frequency (f3) carries communication packets from the pager units to the central control station; and a fourth local frequency (f4) carries a status or request signal from the paging units (22) to the central control station (20). Transmissions on the fourth local frequency (f4) are in accordance with a time divided slot allocation among pager units accessing the central control station (20). For a two-way paging system having a plurality of central control stations (420x) servicing a corresponding plurality of cells, a total of eight frequencies are utilized within any one cell. Four of the utilized frequencies are the local frequencies (f1-f4) [which may differ from cell to cell], and four of the utilized frequencies are lower power common frequencies or switching frequencies (C1-C4) which are used to switch or hand-off a pager unit (422) traveling from one cell to another.
    • 双向寻呼系统利用四个本地频率用于寻呼机单元(22)和中央控制站(20)之间的传输。 第一本地频率(f1)携带本地时钟; 第二本地频率(f2)从中央控制站向寻呼单元传送通信分组; 第三本地频率(f3)携带来自寻呼机单元的通信分组到中央控制站; 和第四本地频率(f4)从寻呼单元(22)向中央控制站(20)传送状态或请求信号。 第四本地频率(f4)上的传输与访问中央控制台(20)的寻呼机单元中的时分时隙分配一致。 对于具有服务相应多个小区的多个中央控制站(420x)的双向寻呼系统,在任何一个小区内总共使用八个频率。 所用频率中的四个是本地频率(f1-f4)[其可能在小区间不同],并且所用频率中的四个是低功率公共频率或用于切换或切换的切换频率(C1-C4) - 切断从一个小区到另一个小区的寻呼机(422)。