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    • 4. 发明授权
    • Enhanced wireless radio channel utilization
    • 增强的无线电信道利用率
    • US06658255B1
    • 2003-12-02
    • US09517687
    • 2000-03-02
    • Stephen Clifford GossJeffrey Ross LightChung-Zin LiuOmar Hernando SalvadorGitesh P. ShahMark Kevin StockertKenneth Wayne StromCharles VarvaroRandall Joe Wilson
    • Stephen Clifford GossJeffrey Ross LightChung-Zin LiuOmar Hernando SalvadorGitesh P. ShahMark Kevin StockertKenneth Wayne StromCharles VarvaroRandall Joe Wilson
    • H04Q720
    • H04W28/02H04Q3/0029H04W4/16H04W76/10
    • Apparatus and a method for establishing a cellular mobile call. If no radio traffic (voice or data) channels are available for a calling or called mobile station (MS), then a test is made to determine the expected wait time before a channel becomes available. If the expected wait time is less than a first threshold, then the call or the call request is queued. If a channel for an incoming call to an MS does not become available before a second time threshold, then the caller is notified by an announcement that the call has been queued and is expected to be established in a short time. If the caller of an incoming call to the MS does not disconnect, then the MSC waits for an available channel and establishes a connection to the MS over that available channel. For an outgoing call from an MS, a control message is sent to the MS to trigger an indication of the queued status to the user. The indication may be one or more tones, a data display, or the playing of a pre-recorded announcement. Advantageously, the number of calls blocked because of unavailable traffic channels is reduced. Advantageously, the same arrangement can be used to reduce blocking of calls because of unavailability of trunks for a link of a call connection.
    • 用于建立蜂窝移动呼叫的装置和方法。 如果呼叫或被叫移动台(MS)没有可用的无线电业务(语音或数据)信道,则进行测试以确定信道变得可用之前的预期等待时间。 如果预期的等待时间小于第一阈值,则呼叫或呼叫请求被排队。 如果用于MS呼入呼叫的信道在第二时间阈值之前不可用,则呼叫者被通告通知呼叫已经排队并预期在短时间内被建立。 如果MS的来电呼叫方没有断开连接,则MSC等待可用信道,并通过该可用信道建立与MS的连接。 对于来自MS的去话呼叫,向MS发送控制消息以触发向用户排队状态的指示。 该指示可以是一个或多个音调,数据显示或预录制通知的播放。 有利地,由于不可用的业务信道而被阻塞的呼叫数量减少。 有利地,由于呼叫连接的链路的中继线不可用,可以使用相同的布置来减少呼叫的阻塞。