mac802_16pkt.cc

This documentation is based on the following versions:- pre-release of the wimax model developed by

/* This class contains helpers for manipulating 802.16 messages
 * and getting the packet size.
 * This software was developed at the National Institute of Standards and
 * Technology by employees of the Federal Government in the course of
 * their official duties. Pursuant to title 17 Section 105 of the United
 * States Code this software is not subject to copyright protection and
 * is in the public domain.
 * NIST assumes no responsibility whatsoever for its use by other parties,
 * and makes no guarantees, expressed or implied, about its quality,
 * reliability, or any other characteristic.
 * <BR>
 * We would appreciate acknowledgement if the software is used.
 * <BR>
 * NIST ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION AND
 * DISCLAIM ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING
 * FROM THE USE OF THIS SOFTWARE.
 * </PRE></P>
 * @author  rouil
 */

#include "mac802_16pkt.h"

/**
 * Return the size of the MOB_NBR-ADV frame
 * @param frame The frame 
 */
int Mac802_16pkt::getMOB_NBR_ADV_size(mac802_16_mob_nbr_adv_frame *frame)
{
  int size = 4; //min size
  if ((frame->skip_opt_field & 0x1) == 0)
    size +=3; //add operator id
  
  for (int i = 0 ; i < frame->n_neighbors ; i++) {
    size += 4; //min size for neighbor info
    if (frame->nbr_info[i].phy_profile_id.FAindex & 0x1)
      size++;
    if (frame->nbr_info[i].phy_profile_id.bs_eirp & 0x1)
      size++;
    if ((frame->skip_opt_field & 0x2) == 0)
      size +=3; //contain neighbor bs id
    if ((frame->skip_opt_field & 0x4) == 0)
      size ++; //contain HO process optimization
    if ((frame->skip_opt_field & 0x8) == 0)
      size ++; //contain neighbor bs id
    if (frame->nbr_info[i].dcd_included)
      size += 2+GET_DCD_SIZE (frame->nbr_info[i].dcd_settings.nb_prof); 
    if (frame->nbr_info[i].ucd_included)
      size += 2+GET_UCD_SIZE (frame->nbr_info[i].ucd_settings.nb_prof); 
    if (frame->nbr_info[i].phy_included)
      size += 2;
  }

  return size;
}

/**
 * Return the size of the MOB_SCN-REQ 
 * @param frame The frame 
 */
int Mac802_16pkt::getMOB_SCN_REQ_size(mac802_16_mob_scn_req_frame *frame)
{
  int size=6;

  if (frame->n_recommended_bs_index != 0)
    size ++;
  int tmp = 11*(frame->n_recommended_bs_index+frame->n_recommended_bs_full);
  size += tmp/8;
  if ((tmp%8)!=0)
    size ++;

  return size;
}

/**
 * Return the size of the MOB_SCN-RSP 
 * @param frame The frame 
 */
int Mac802_16pkt::getMOB_SCN_RSP_size(mac802_16_mob_scn_rsp_frame *frame)
{
  int size=6;

  if (frame->scan_duration!=0) {
    size += 3;
    if (frame->n_recommended_bs_index!=0)
      size ++;
    int tmp = 0;
    for (int i = 0 ; i < frame->n_recommended_bs_index ; i++) {
      tmp+=11;
      if (frame->rec_bs_index[i].scanning_type==2 ||
	  frame->rec_bs_index[i].scanning_type==3)
	tmp+=24;
    }
    for (int i = 0 ; i < frame->n_recommended_bs_index ; i++) {
      tmp+=51;
      if (frame->rec_bs_index[i].scanning_type==2 ||
	  frame->rec_bs_index[i].scanning_type==3)
	tmp+=24;
    }
    size += tmp/8;
    if ((tmp%8)!=0)
      size ++;  
  }

  return size;
}

/**
 * Return the size of the MOB_MSHO-REQ 
 * @param frame The frame 
 */
int Mac802_16pkt::getMOB_MSHO_REQ_size(mac802_16_mob_msho_req_frame *frame)
{
  int size=4;
  int tmp, tmpB;

  tmp = 0;
  tmpB = 0;

  if (frame->n_new_bs_index !=0) 
    size++;

  if (frame->report_metric & 0x1) tmp++;
  if (frame->report_metric & 0x2) tmp++;
  if (frame->report_metric & 0x4) tmp++;

  for (int i = 0 ; i < frame->n_new_bs_index ; i++) {
    tmpB += 20 + 8*tmp;    
    if (frame->bs_index[i].arrival_time_diff_ind & 0x1)
      tmpB += 4;
  }
  //n_new_bs_full
  for (int i = 0 ; i < frame->n_new_bs_full ; i++) {
    tmpB += 20 + 8*tmp;
    if (frame->bs_full[i].arrival_time_diff_ind & 0x1)
      tmpB += 4;
  }
  tmpB += 4;
  //N_current
  if (frame->report_metric & 0x8) tmp++;
  for (int i = 0 ; i < frame->n_current_bs ; i++) {
    tmpB += 4 + 8*tmp;
  }
  //increase size
  size += tmp/8;
  if ((tmp%8)!=0)
    size ++;  //includes padding
  
  return size;
}

/**
 * Return the size of the MOB_MSHO-REQ 
 * @param frame The frame 
 */
int Mac802_16pkt::getMOB_BSHO_RSP_size(mac802_16_mob_bsho_rsp_frame *frame)
{
  int size=4;

  return size;
}

/**
 * Return the size of the MOB_HO-IND 
 * @param frame The frame 
 */
int Mac802_16pkt::getMOB_HO_IND_size(mac802_16_mob_ho_ind_frame *frame)
{
  int size=4;

  return size;
}