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Medium Access Control (MAC) and Physical Layer (PHY) - CISE

Medium Access Control (MAC) and Physical Layer (PHY) - CISE

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4-June-07 P1901_PRO_016_r0<br />

4.7.2.3 When generated<br />

The primitive is generated by the LLC layer entity when a LPDU is to be transferred.<br />

4.7.2.4 Effect of receipt<br />

The <strong>MAC</strong> layer entity starts the sending of the LPDU.<br />

4.7.3 <strong>MAC</strong>-DATA.cnf<br />

4.7.3.1 Function<br />

This primitive has local significance <strong>and</strong> provides the LLC layer with status information (sending finished) of the<br />

corresponding preceeding <strong>PHY</strong>-DATA.req primitive.<br />

4.7.3.2 Semantics of the service primitive<br />

This primitive has no parameters.<br />

4.7.3.3 When generated<br />

The primitive is passed from the <strong>MAC</strong> layer entity to the LLC layer entity to indicate that the previous LPDU has<br />

been sent.<br />

4.7.3.4 Effect of receipt<br />

The LLC layer entity is aware that the <strong>MAC</strong> is available to send new MPDUs, <strong>and</strong> can issue new <strong>MAC</strong>-DATA.req<br />

primitives.<br />

4.7.4 <strong>MAC</strong>-DATA.ind<br />

4.7.4.1 Function<br />

This primitive defines the transfer of a LPDU from the <strong>MAC</strong> layer entity to the LLC layer entity.<br />

4.7.4.2 Semantics of the service primitive<br />

<strong>MAC</strong>-DATA.ind(LPDU, lpdu_seq_number)<br />

- LPDU: LLC Protocol Data Unit<br />

- lpdu_seq_number: a sequence number that uniquily identifies this LPDU.<br />

Submission page 135 UPA-OPERA

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