ghaddab
56c3197b09
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@5713 818b1a75-f10b-46b9-bf7c-635c3b92a50f
50 lines
2.6 KiB
C
50 lines
2.6 KiB
C
/*******************************************************************************
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OpenAirInterface
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Copyright(c) 1999 - 2014 Eurecom
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OpenAirInterface is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenAirInterface is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OpenAirInterface.The full GNU General Public License is
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included in this distribution in the file called "COPYING". If not,
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see <http://www.gnu.org/licenses/>.
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Contact Information
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OpenAirInterface Admin: openair_admin@eurecom.fr
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OpenAirInterface Tech : openair_tech@eurecom.fr
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OpenAirInterface Dev : openair4g-devel@eurecom.fr
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Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
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*******************************************************************************/
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#define modOrder(I_MCS,I_TBS) ((I_MCS-I_TBS)*2+2) // Find modulation order from I_TBS and I_MCS
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/** \fn unsigned char I_TBS2I_MCS(unsigned char I_TBS);
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\brief This function maps I_tbs to I_mcs according to Table 7.1.7.1-1 in 3GPP TS 36.213 V8.6.0. Where there is two supported modulation orders for the same I_TBS then either high or low modulation is chosen by changing the equality of the two first comparisons in the if-else statement.
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\param I_TBS Index of Transport Block Size
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\return I_MCS given I_TBS
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*/
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unsigned char I_TBS2I_MCS(unsigned char I_TBS);
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/** \fn unsigned char SE2I_TBS(float SE,
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unsigned char N_PRB,
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unsigned char symbPerRB);
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\brief This function maps a requested throughput in number of bits to I_tbs. The throughput is calculated as a function of modulation order, RB allocation and number of symbols per RB. The mapping orginates in the "Transport block size table" (Table 7.1.7.2.1-1 in 3GPP TS 36.213 V8.6.0)
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\param SE Spectral Efficiency (before casting to integer, multiply by 1024, remember to divide result by 1024!)
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\param N_PRB Number of PhysicalResourceBlocks allocated \sa lte_frame_parms->N_RB_DL
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\param symbPerRB Number of symbols per resource block allocated to this channel
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\return I_TBS given an SE and an N_PRB
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*/
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unsigned char SE2I_TBS(float SE,
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unsigned char N_PRB,
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unsigned char symbPerRB);
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