H35-510 무료 덤프문제 온라인 액세스

When the base station uses frequency hopping, the frequency selective repeater cannot be selected in any way.

• A.False
• B.True

Which of the following statements about network color code are correct? (Multiple choice)

• A.Generally, GSM PLMNs in neighboring countries choose different NCCs, so it is only necessary to negotiate BCC when planning domestic provinces and cities.
• B.The NCC and the BCC together form a Base Station Identity Code (BSIC), which is transmitted on the synchronization channel (SCH) of each cell.
• C.It must be ensured that adjacent or neighboring cells using the same BCCH carrier frequency have different BSICs. Therefore, we must pay special attention to the configuration of the communities at the junctions of provinces and cities.
• D.BCC values can range from 1 to 7.

Mobile phone first access to mobile communication network through which device?

• A.Location register
• B.Base station
• C.Switch
• D.Base station controller

900M radio waves may reflect, scatter and refract during the propagation process. It will cause interference to direct waves. The fading value of radio waves in free space is proportional to the propagation distance.

• A.False
• B.True

Unicom's GSM dual-frequency network refers to:

• A.800MHz and 1900MHz
• B.900MHz and 1800MHz
• C.800MHz and 1800MHz
• D.900MHz and 1900MHz