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来自「用C++编写的GPRS协议栈源代码」· HTML 代码 · 共 55 行
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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"><!--Converted with LaTeX2HTML 96.1 (Feb 5, 1996) by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds --><HTML><HEAD><TITLE>Packet to be received from the Air-Interface</TITLE><META NAME="description" CONTENT="Packet to be received from the Air-Interface"><META NAME="keywords" CONTENT="gprs"><META NAME="resource-type" CONTENT="document"><META NAME="distribution" CONTENT="global"><LINK REL=STYLESHEET HREF="gprs.css"></HEAD><BODY LANG="EN"> <A NAME="tex2html416" HREF="node30.html"><IMG WIDTH=37 HEIGHT=24 ALIGN=BOTTOM ALT="next" SRC="http://cbl.leeds.ac.uk/nikos/figs/next_motif.gif"></A> <A NAME="tex2html414" HREF="node22.html"><IMG WIDTH=26 HEIGHT=24 ALIGN=BOTTOM ALT="up" SRC="http://cbl.leeds.ac.uk/nikos/figs/up_motif.gif"></A> <A NAME="tex2html408" HREF="node28.html"><IMG WIDTH=63 HEIGHT=24 ALIGN=BOTTOM ALT="previous" SRC="http://cbl.leeds.ac.uk/nikos/figs/previous_motif.gif"></A> <BR><B> Next:</B> <A NAME="tex2html417" HREF="node30.html">Packet send completed</A><B>Up:</B> <A NAME="tex2html415" HREF="node22.html">Psuedocode for Packet Processing </A><B> Previous:</B> <A NAME="tex2html409" HREF="node28.html">Packet to be transmitted </A><BR> <P><H2><A NAME="SECTION00137000000000000000">Packet to be received from the Air-Interface</A></H2><P><PRE><TT> <B>Comment:</B> xxxxxxxxxxxxB<>Method:</B> <TT>rx_from_PHY ()</TT><P><B>Comment:</B> This is where a packet is received from theAir-Interface by the receiver.<P><B>Action:</B> Check if this is the PRACH and this is the BS<P> If yes, check for collision on <TT>chan0_0</TT><P> If collision<P> Drop the colliding packets<P> Decrement the <TT>coll_count</TT><P> Change the tt chan0_0 to <font size=-1><small>IDLE</small></font> when all collidingpackets have been dropped<P> Else<P> Drop packet header if marked in error<P> Find packet reception interval<P> Assert that it is non-negative but less than <TT>slot_time_</TT><P> Start the <TT>pktRxTimer</TT><P></TT></PRE><BR> <HR><P><ADDRESS><I>Richa Jain (96D07007) <BR>Tue Jul 24 22:29:53 IST 2001</I></ADDRESS></BODY></HTML>
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