Service Planning

Basic Information About Microwave Links

According to the spectrum allocation on the radio network and the required radio transmission capacity, you can obtain the basic information about the microwave links, as provided in Table 1.

**Table 1** Basic information about microwave links
Parameter	Link 1	Link 2	Link 3	Link 4
Link ID	201	202	203	204
Tx high site	NE21	NE23	NE23	NE21
Tx low site	NE22	NE22	NE24	NE24
Tx frequency at the Tx high site (MHz)	14930	14958	14930	14958
Tx frequency at the Tx low site (MHz)	14510	14538	14510	14538
T/R spacing (MHz)	420	420	420	420
Channel spacing (MHz)	14	14	14	14
RF configuration mode	1+0	1+0	1+0	1+0
Polarization Direction	V (vertical polarization)	H (horizontal polarization)	H (horizontal polarization)	V (vertical polarization)

NOTE:

The planning information that is not related to the configuration of the IDU (except for the polarization direction) is not provided in this example.

Hybrid/AM Attribute Information

According to the capacity of E1 and Ethernet services and the availability requirement, you can calculate the Hybrid/AM attribute information as provided in Table 2.

**Table 2** Hybrid/AM attribute information
Parameter	Link 1	Link 2	Link 3	Link 4
Number of E1s in guaranteed capacity mode	2	2	2	2
Number of E1s in AM full capacity mode	-	-	-	-
Capacity of high-priority Ethernet services (Mbit/s)	28	28	28	28
Capacity of low-priority Ethernet services (Mbit/s)	40	40	40	40
AM enabling	Enabled	Enabled	Enabled	Enabled
AM guarantee capacity mode	16QAM	16QAM	16QAM	16QAM
AM full capacity mode	128QAM	128QAM	128QAM	128QAM
E1 priority enabling	Disabled	Disabled	Disabled	Disabled

NOTE:

In this example, E1 services are high-priority services and therefore the E1 service priority function does not need to be enabled.
According to the Hybrid ring protection scheme, each Hybrid microwave link must carry all the services on the ring.
The Hybrid radio capacity and the AM function require the appropriate license file.

Power and ATPC Information

By using the radio network planning software such as the Pathloss, you can analyze and compute the parameters of microwave links and obtain the power and ATPC information of the microwave links, as provided in Table 3.

**Table 3** Power and ATPC information
Parameter	Link 1	Link 2	Link 3	Link 4
Transmit power (dBm)	16.5(NE21) 16.5(NE22)	16.5(NE23) 16.5(NE22)	16(NE23) 16(NE24)	15(NE21) 15(NE24)
Receive power (dBm)	-42(NE21) -42(NE22)	-44(NE23) -44(NE22)	-43(NE23) -43(NE24)	-45(NE21) -45(NE24)
ATPC enabling	Disabled	Disabled	Disabled	Disabled
ATPC automatic threshold enabling	-	-	-	-
Upper threshold of ATPC adjustment (dBm)	-	-	-	-
Lower threshold of ATPC adjustment (dBm)	-	-	-	-
Maximum transmit power (dBm)	-	-	-	-

NOTE:

The transmit power is calculated in AM guaranteed capacity mode.
The receive power is calculated in AM guaranteed capacity mode.
In this example, the ATPC function is disabled.

Information About IF Boards

According to the radio type, slot priorities of IF boards, and configuration rules of the 1+1 protection, you can obtain the information about IF boards, as provided in Table 4.

**Table 4** Information about IF boards
Parameter	Link 1	Link 2	Link 3	Link 4
Main IF board	4-ISU2(NE21) 3-ISU2(NE22)	4-ISU2(NE22) 3-ISU2(NE23)	4-ISU2(NE23) 3-ISU2(NE24)	4-ISU2(NE24) 3-ISU2(NE21)
Standby IF board	-	-	-	6-ISU2(NE24) 5-ISU2(NE21)
RF configuration mode	1+0	1+0	1+0	1+1 SD
Revertive mode	-	-	-	Revertive (default value)
WTR time(s)	-	-	-	600 (default value)
Reverse switching enabling	-	-	-	Enabled

NOTE:

It is recommended that you configure the main IF board in the slot with the smaller slot number.
In 1+1 HSB configuration, it is recommended that you disable the reverse switching function. In 1+1 SD configuration, it is recommended that you enable the reverse switching function. Unless otherwise specified, it is recommended that alarms be reported by protection group.