PCF5083 datasheet(91/136 Pages) PHILIPS

91 / 136 page

1996 Oct 29

Philips Semiconductors

Objective speciﬁcation

GSM signal processing IC

PCF5083

9.4.2

TRANSMITTING A CCH BLOCK

This example shows how to transmit a CCH block. The transmission is performed in the TDMA frames N to N + 3. Only

one message has to be sent in order to transmit a CCH block.

Table 68 Procedures to be started for transmitting a CCH block

Note

1. Procedures to be started via EXEC_PROC in TDMA frame FN.

9.4.3

FB SEARCH FOR TIMING SYNCHRONIZATION

This example shows how to achieve time synchronization when the mobile is in IDLE mode or is on a channel with a

51 multiframe structure.

Table 69 Procedures to be started for FB search for timing synchronization

Note

1. Procedures to be started via EXEC_PROC in TDMA frame FN.

PROCEDURES(1)

− 1

CP_tx_CCH (tsc, cch_msg)

−−−

−−

−

156

−

N + 1

−−

−

156

−

N+2

−−

−

156

−

N+3

−−

−

156

−

PROCEDURES(1)

FB_search_fcb_init(15)

FB_search_fcb( )

−−−

N+11, N+22

FB_search_fcb( )

−−−

N+1, N+12, N+23

−−−

1404

N+2, N+13, N+24

FB_search_fcb( )

−−

N+3, N+14, N+25

−−−

1404

N+4, N+15, N+26

FB_search_fcb( )

−−

N+5, N+16, N+27

−−−

1404

N+6, N+17, N+28

FB_search_fcb( )

−−

N+7, N+18, N+29

−−−

1404

N+8, N+19, N+30

FB_search_fcb( )

−−

N+9, N+20, N+31

−−−

1404

N+10, N+21, N+32

−−−

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