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    • 7. 发明申请
    • ACCESS TO A WIRELESS NETWORK BASED ON A LINK COST METRIC
    • 基于链路成本计算方式访问无线网络
    • WO03049470A3
    • 2003-09-04
    • PCT/CA0201944
    • 2002-12-06
    • RESEARCH IN MOTION LTDZHAO WENJIN XIN
    • ZHAO WENJIN XIN
    • H04L12/28H04L12/56H04W4/24H04W36/00H04W48/16H04W48/20H04Q7/32
    • H04W48/20H04W4/24H04W24/02H04W48/16
    • A method of system access from a wireless device to a wireless network, the network having a plurality of base stations includes the steps of: selecting at least one reverse link cost metric from a list of predetermined reverse link cost metrics; (220) determining a reverse link cost according to the selected at least one reverse link cost metric; (220) selecting a candidate base station from the plurality of base stations; (230) sending a probe signal at the reverse link cost to the candidate base station; (240) waiting for a response from the candidate base station within a timeout period; (250) and repeating steps (280, 240, 250, 270) until timeout, or until the condition that a response is received from at least one candidate base station so that at least one candidate base station can be used to provide system access from the wireless device to the wireless network; increasing reverse link cost (300); and repeating the steps after (230) until either system access to the wireless network has been provided or the reverse link cost exceeds a predetermined link cost treshold (290).
    • 一种从无线设备到无线网络的系统接入的方法,所述具有多个基站的网络包括以下步骤:从预定的反向链路成本度量的列表中选择至少一个反向链路成本度量; (220)根据所选择的至少一个反向链路成本度量来确定反向链路成本; (220)从所述多个基站中选择候选基站; (230)以所述反向链路成本向所述候选基站发送探测信号; (240)在超时期间等候候选基站的响应; (250)和重复步骤(280,240,250,270)直到超时,或直到从至少一个候选基站接收到响应的条件,使得至少一个候选基站可以用于提供从 无线设备到无线网络; 增加反向链路成本(300); 并且重复(230)之后的步骤,直到已经提供了对无线网络的系统访问或者反向链路成本超过预定链路成本阈值(290)。