-- TS 44.060 - d60
-- 11.2.6b Packet DBPSCH Downlink Ack/Nack
-- Packet DBPSCH Downlink Ack/Nack message

< Packet DBPSCH Downlink Ack/Nack message > ::=
	< MESSAGE_TYPE : bit (6) == 000010 >
	< RB Id : bit (5) >
	{ 0	-- TCH TBF mode
		{ 0 -- All data blocks acknowledged, no retransmission requested
		| 1	< STARTING_SEQUENCE_NUMBER : bit (8) >
			< RECEIVED_BLOCK_BITMAP : bit (128) > }
	| 1	-- DCCH TBF mode
		{ 0 -- All data blocks acknowledged, no retransmission requested
		| 1	< STARTING_SEQUENCE_NUMBER : bit (4) >
			< RECEIVED_BLOCK_BITMAP : bit (8) > } }
	<padding bits > ;