Nortel Networks 411-2021-111 MHz cellular band, Channel assignment for 800 MHz cellular systems

1-4Introduction

The 800 MHz cellular band

In an 800 MHz North American cellular system, a frequency spectrum of 50 MHz is available for service. Operating from 824 to 894 MHz, including the expanded spectrum, the system conforms to the AMPS IS-54 protocol.

Typically this range is divided into 832 radio frequency (RF) channelsThe. 832 RF channels are divided into two bands,A and B. The two bands are identified as follows:

•Band A—for Non-Wireline Operators

•Band B—for Wireline Operators.

Each frequency band has 416 RF channels. Of these 416 RF channels, typically 21 (depending on the frequency plan) are assigned as the Control Channels (CCH) and the remaining 395 are Voice Channels (VCH). See Figure 1-4 and Table 1-1.

Figure 1-4

Channel assignment for 800 MHz cellular systems

			Base Station Frequency (MHz)
RX	824	825	A-Band CCH	835	B-Band CCH	835	846.5	849	851
TX	869	870		880		890	891.5	894	896

Band

A"

A

B

A'

B'

R

991	1	333				666	716	799
1023		Channel Number						R=Reserved
	Channel assignment		Band A (416 channels)			Band B (416 channels)
	Control channels		313	- 333 (21)		334 - 354 (21)
	Optional—TDMA secondary		688	- 708	(21)	737 - 757		(21)
	control channels
	Voice channels		001 - 312		(312)	355 - 666		(312)
			667	- 716	(50)	717 - 799		(83)
			991	- 1023 (33)

411-2021-111 Standard 01.01 June 1996