蜂窝移动通讯系统主要是由交换网路子系统（NSS）、无线基站子系统(BSS)和移动台（MS）三大多数构成，如图2－1所示。其间NSS与BSS之间的接口为“A”接口，BSS与MS之间的接口为“Um”接口。

(The cellular mobile communication system is mainly composed of switching network subsystem (NSS), wireless base station subsystem (BSS) and mobile station (MS), as shown in Figure 2-1. The interface between the NSS and the BSS is the "A" interface, and the interface between the BSS and the MS is the "Um" interface.)

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蜂窝移动通讯系统主要是由交换网路子系统（NSS）、无线基站子系统(BSS)和移动台（MS）三大多数构成，如图2－1所示。其间NSS与BSS之间的接口为“A”接口，BSS与MS之间的接口为“Um”接口。

(The cellular mobile communication system is mainly composed of switching network subsystem (NSS), wireless base station subsystem (BSS) and mobile station (MS), as shown in Figure 2-1. The interface between the NSS and the BSS is the "A" interface, and the interface between the BSS and the MS is the "Um" interface.)

[下载]19475643687.rar

2022-8-1 19:47 上传

文件大小: 286 KB
下载次数: 0