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openairinterface5g/common/utils/lte/prach_utils.c
Robert Schmidt 8107939f08 Change OAI license to CSSL v1.0 (and others) 
- all RAN code, CI code, configuration files, dockerfiles, in CSSL v1.0
- all deployment code (openshift, charts, ancillary files like shell
  scripts), in MIT
- documentation in CC-BY-4.0
- exceptions might apply and are listed in NOTICE
- there is a new LICENSES folder with all licenses
- CONTRIBUTIONS.md has been updated accordingly

For automated changes based on OAI PL v1.1:

    perl -i~ -0pe 's/\/\*.*Licensed to the OpenAirInterface.*openairinterface.org\n#?/\/*\n * SPDX-License-Identifier: LicenseRef-CSSL-1.0\n/s' **/*.{c,h,cpp}
    perl -i~ -0pe 's/\/\*.*Licensed to the OpenAirInterface.*openairinterface.org\n#?/\/*\n * SPDX-License-Identifier: LicenseRef-CSSL-1.0\n/s' **/*.ts
    perl -i~ -0pe 's/<!--.*Licensed to the OpenAirInterface.*openairinterface.org\n.*-->/<!-- SPDX-License-Identifier: LicenseRef-CSSL-1.0 -->/s' **/*.xml

The rest (cmake, files with missing license, cmake) manually.
2026-03-27 16:36:37 +01:00

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/*
* SPDX-License-Identifier: LicenseRef-CSSL-1.0
*/
/*!
* \brief utils for PRACH common to both PHY and MAC
*/
#include <stdint.h>
#include "PHY/LTE_TRANSPORT/transport_common.h"
// This is table 5.7.1-4 from 36.211
const PRACH_TDD_PREAMBLE_MAP tdd_preamble_map[64][7] = {
// TDD Configuration Index 0
{{1, {{0, 1, 0, 2}}},
{1, {{0, 1, 0, 1}}},
{1, {{0, 1, 0, 0}}},
{1, {{0, 1, 0, 2}}},
{1, {{0, 1, 0, 1}}},
{1, {{0, 1, 0, 0}}},
{1, {{0, 1, 0, 2}}}},
// TDD Configuration Index 1
{{1, {{0, 2, 0, 2}}},
{1, {{0, 2, 0, 1}}},
{1, {{0, 2, 0, 0}}},
{1, {{0, 2, 0, 2}}},
{1, {{0, 2, 0, 1}}},
{1, {{0, 2, 0, 0}}},
{1, {{0, 2, 0, 2}}}},
// TDD Configuration Index 2
{{1, {{0, 1, 1, 2}}},
{1, {{0, 1, 1, 1}}},
{1, {{0, 1, 1, 0}}},
{1, {{0, 1, 0, 1}}},
{1, {{0, 1, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 1, 1, 1}}}},
// TDD Configuration Index 3
{{1, {{0, 0, 0, 2}}},
{1, {{0, 0, 0, 1}}},
{1, {{0, 0, 0, 0}}},
{1, {{0, 0, 0, 2}}},
{1, {{0, 0, 0, 1}}},
{1, {{0, 0, 0, 0}}},
{1, {{0, 0, 0, 2}}}},
// TDD Configuration Index 4
{{1, {{0, 0, 1, 2}}},
{1, {{0, 0, 1, 1}}},
{1, {{0, 0, 1, 0}}},
{1, {{0, 0, 0, 1}}},
{1, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 0, 1, 1}}}},
// TDD Configuration Index 5
{{1, {{0, 0, 0, 1}}},
{1, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 0, 0, 1}}}},
// TDD Configuration Index 6
{{2, {{0, 0, 0, 2}, {0, 0, 1, 2}}},
{2, {{0, 0, 0, 1}, {0, 0, 1, 1}}},
{2, {{0, 0, 0, 0}, {0, 0, 1, 0}}},
{2, {{0, 0, 0, 1}, {0, 0, 0, 2}}},
{2, {{0, 0, 0, 0}, {0, 0, 0, 1}}},
{2, {{0, 0, 0, 0}, {1, 0, 0, 0}}},
{2, {{0, 0, 0, 2}, {0, 0, 1, 1}}}},
// TDD Configuration Index 7
{{2, {{0, 0, 0, 1}, {0, 0, 1, 1}}},
{2, {{0, 0, 0, 0}, {0, 0, 1, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}}},
{2, {{0, 0, 0, 0}, {0, 0, 0, 2}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}}},
{2, {{0, 0, 0, 1}, {0, 0, 1, 0}}}},
// TDD Configuration Index 8
{{2, {{0, 0, 0, 0}, {0, 0, 1, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}}},
{2, {{0, 0, 0, 0}, {0, 0, 0, 1}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}}},
{2, {{0, 0, 0, 0}, {0, 0, 1, 1}}}},
// TDD Configuration Index 9
{{3, {{0, 0, 0, 1}, {0, 0, 0, 2}, {0, 0, 1, 2}}},
{3, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 1, 1}}},
{3, {{0, 0, 0, 0}, {0, 0, 1, 0}, {1, 0, 0, 0}}},
{3, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 0, 2}}},
{3, {{0, 0, 0, 0}, {0, 0, 0, 1}, {1, 0, 0, 1}}},
{3, {{0, 0, 0, 0}, {1, 0, 0, 0}, {2, 0, 0, 0}}},
{3, {{0, 0, 0, 1}, {0, 0, 0, 2}, {0, 0, 1, 1}}}},
// TDD Configuration Index 10
{{3, {{0, 0, 0, 0}, {0, 0, 1, 0}, {0, 0, 1, 1}}},
{3, {{0, 0, 0, 1}, {0, 0, 1, 0}, {0, 0, 1, 1}}},
{3, {{0, 0, 0, 0}, {0, 0, 1, 0}, {1, 0, 1, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{3, {{0, 0, 0, 0}, {0, 0, 0, 1}, {1, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{3, {{0, 0, 0, 0}, {0, 0, 0, 2}, {0, 0, 1, 0}}}},
// TDD Configuration Index 11
{{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{3, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 1, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{3, {{0, 0, 0, 1}, {0, 0, 1, 0}, {0, 0, 1, 1}}}},
// TDD Configuration Index 12
{{4, {{0, 0, 0, 1}, {0, 0, 0, 2}, {0, 0, 1, 1}, {0, 0, 1, 2}}},
{4, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 1, 0}, {0, 0, 1, 1}}},
{4, {{0, 0, 0, 0}, {0, 0, 1, 0}, {1, 0, 0, 0}, {1, 0, 1, 0}}},
{4, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 0, 2}, {1, 0, 0, 2}}},
{4, {{0, 0, 0, 0}, {0, 0, 0, 1}, {1, 0, 0, 0}, {1, 0, 0, 1}}},
{4, {{0, 0, 0, 0}, {1, 0, 0, 0}, {2, 0, 0, 0}, {3, 0, 0, 0}}},
{4, {{0, 0, 0, 1}, {0, 0, 0, 2}, {0, 0, 1, 0}, {0, 0, 1, 1}}}},
// TDD Configuration Index 13
{{4, {{0, 0, 0, 0}, {0, 0, 0, 2}, {0, 0, 1, 0}, {0, 0, 1, 2}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{4, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 0, 2}, {1, 0, 0, 1}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{4, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 0, 2}, {0, 0, 1, 1}}}},
// TDD Configuration Index 14
{{4, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 1, 0}, {0, 0, 1, 1}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{4, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 0, 2}, {1, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{4, {{0, 0, 0, 0}, {0, 0, 0, 2}, {0, 0, 1, 0}, {0, 0, 1, 1}}}},
// TDD Configuration Index 15
{{5, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 0, 2}, {0, 0, 1, 1}, {0, 0, 1, 2}}},
{5, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 1, 0}, {0, 0, 1, 1}, {1, 0, 0, 1}}},
{5, {{0, 0, 0, 0}, {0, 0, 1, 0}, {1, 0, 0, 0}, {1, 0, 1, 0}, {2, 0, 0, 0}}},
{5, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 0, 2}, {1, 0, 0, 1}, {1, 0, 0, 2}}},
{5, {{0, 0, 0, 0}, {0, 0, 0, 1}, {1, 0, 0, 0}, {1, 0, 0, 1}, {2, 0, 0, 1}}},
{5, {{0, 0, 0, 0}, {1, 0, 0, 0}, {2, 0, 0, 0}, {3, 0, 0, 0}, {4, 0, 0, 0}}},
{5, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 0, 2}, {0, 0, 1, 0}, {0, 0, 1, 1}}}},
// TDD Configuration Index 16
{{5, {{0, 0, 0, 1}, {0, 0, 0, 2}, {0, 0, 1, 0}, {0, 0, 1, 1}, {0, 0, 1, 2}}},
{5, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 1, 0}, {0, 0, 1, 1}, {1, 0, 1, 1}}},
{5, {{0, 0, 0, 0}, {0, 0, 1, 0}, {1, 0, 0, 0}, {1, 0, 1, 0}, {2, 0, 1, 0}}},
{5, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 0, 2}, {1, 0, 0, 0}, {1, 0, 0, 2}}},
{5, {{0, 0, 0, 0}, {0, 0, 0, 1}, {1, 0, 0, 0}, {1, 0, 0, 1}, {2, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}}},
// TDD Configuration Index 17
{{5, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 0, 2}, {0, 0, 1, 0}, {0, 0, 1, 2}}},
{5, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 1, 0}, {0, 0, 1, 1}, {1, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{5, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 0, 2}, {1, 0, 0, 0}, {1, 0, 0, 1}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}}},
// TDD Configuration Index 18
{{6, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 0, 2}, {0, 0, 1, 0}, {0, 0, 1, 1}, {0, 0, 1, 2}}},
{6, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 1, 0}, {0, 0, 1, 1}, {1, 0, 0, 1}, {1, 0, 1, 1}}},
{6, {{0, 0, 0, 0}, {0, 0, 1, 0}, {1, 0, 0, 0}, {1, 0, 1, 0}, {2, 0, 0, 0}, {2, 0, 1, 0}}},
{6, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 0, 2}, {1, 0, 0, 0}, {1, 0, 0, 1}, {1, 0, 0, 2}}},
{6, {{0, 0, 0, 0}, {0, 0, 0, 1}, {1, 0, 0, 0}, {1, 0, 0, 1}, {2, 0, 0, 0}, {2, 0, 0, 1}}},
{6, {{0, 0, 0, 0}, {1, 0, 0, 0}, {2, 0, 0, 0}, {3, 0, 0, 0}, {4, 0, 0, 0}, {5, 0, 0, 0}}},
{6, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 0, 2}, {0, 0, 1, 0}, {0, 0, 1, 1}, {1, 0, 0, 2}}}},
// TDD Configuration Index 19
{{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{6, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 1, 0}, {0, 0, 1, 1}, {1, 0, 0, 0}, {1, 0, 1, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{6, {{0, 0, 0, 0}, {0, 0, 0, 1}, {0, 0, 0, 2}, {0, 0, 1, 0}, {0, 0, 1, 1}, {1, 0, 1, 1}}}},
// TDD Configuration Index 20
{{1, {{0, 1, 0, 1}}},
{1, {{0, 1, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 1, 0, 1}}},
{1, {{0, 1, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 1, 0, 1}}}},
// TDD Configuration Index 21
{{1, {{0, 2, 0, 1}}},
{1, {{0, 2, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 2, 0, 1}}},
{1, {{0, 2, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 2, 0, 1}}}},
// TDD Configuration Index 22
{{1, {{0, 1, 1, 1}}},
{1, {{0, 1, 1, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 1, 1, 0}}}},
// TDD Configuration Index 23
{{1, {{0, 0, 0, 1}}},
{1, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 0, 0, 1}}},
{1, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 0, 0, 1}}}},
// TDD Configuration Index 24
{{1, {{0, 0, 1, 1}}},
{1, {{0, 0, 1, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 0, 1, 0}}}},
// TDD Configuration Index 25
{{2, {{0, 0, 0, 1}, {0, 0, 1, 1}}},
{2, {{0, 0, 0, 0}, {0, 0, 1, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}}},
{2, {{0, 0, 0, 1}, {1, 0, 0, 1}}},
{2, {{0, 0, 0, 0}, {1, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}}},
{2, {{0, 0, 0, 1}, {0, 0, 1, 0}}}},
// TDD Configuration Index 26
{{3, {{0, 0, 0, 1}, {0, 0, 1, 1}, {1, 0, 0, 1}}},
{3, {{0, 0, 0, 0}, {0, 0, 1, 0}, {1, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{3, {{0, 0, 0, 1}, {1, 0, 0, 1}, {2, 0, 0, 1}}},
{3, {{0, 0, 0, 0}, {1, 0, 0, 0}, {2, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{3, {{0, 0, 0, 1}, {0, 0, 1, 0}, {1, 0, 0, 1}}}},
// TDD Configuration Index 27
{{4, {{0, 0, 0, 1}, {0, 0, 1, 1}, {1, 0, 0, 1}, {1, 0, 1, 1}}},
{4, {{0, 0, 0, 0}, {0, 0, 1, 0}, {1, 0, 0, 0}, {1, 0, 1, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{4, {{0, 0, 0, 1}, {1, 0, 0, 1}, {2, 0, 0, 1}, {3, 0, 0, 1}}},
{4, {{0, 0, 0, 0}, {1, 0, 0, 0}, {2, 0, 0, 0}, {3, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{4, {{0, 0, 0, 1}, {0, 0, 1, 0}, {1, 0, 0, 1}, {1, 0, 1, 0}}}},
// TDD Configuration Index 28
{{5, {{0, 0, 0, 1}, {0, 0, 1, 1}, {1, 0, 0, 1}, {1, 0, 1, 1}, {2, 0, 0, 1}}},
{5, {{0, 0, 0, 0}, {0, 0, 1, 0}, {1, 0, 0, 0}, {1, 0, 1, 0}, {2, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{5, {{0, 0, 0, 1}, {1, 0, 0, 1}, {2, 0, 0, 1}, {3, 0, 0, 1}, {4, 0, 0, 1}}},
{5, {{0, 0, 0, 0}, {1, 0, 0, 0}, {2, 0, 0, 0}, {3, 0, 0, 0}, {4, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{5, {{0, 0, 0, 1}, {0, 0, 1, 0}, {1, 0, 0, 1}, {1, 0, 1, 0}, {2, 0, 0, 1}}}},
// TDD Configuration Index 29
{{6, {{0, 0, 0, 1}, {0, 0, 1, 1}, {1, 0, 0, 1}, {1, 0, 1, 1}, {2, 0, 0, 1}, {2, 0, 1, 1}}},
{6, {{0, 0, 0, 0}, {0, 0, 1, 0}, {1, 0, 0, 0}, {1, 0, 1, 0}, {2, 0, 0, 0}, {2, 0, 1, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{6, {{0, 0, 0, 1}, {1, 0, 0, 1}, {2, 0, 0, 1}, {3, 0, 0, 1}, {4, 0, 0, 1}, {5, 0, 0, 1}}},
{6, {{0, 0, 0, 0}, {1, 0, 0, 0}, {2, 0, 0, 0}, {3, 0, 0, 0}, {4, 0, 0, 0}, {5, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{6, {{0, 0, 0, 1}, {0, 0, 1, 0}, {1, 0, 0, 1}, {1, 0, 1, 0}, {2, 0, 0, 1}, {2, 0, 1, 0}}}},
// TDD Configuration Index 30
{{1, {{0, 1, 0, 1}}},
{1, {{0, 1, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 1, 0, 1}}},
{1, {{0, 1, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 1, 0, 1}}}},
// TDD Configuration Index 31
{{1, {{0, 2, 0, 1}}},
{1, {{0, 2, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 2, 0, 1}}},
{1, {{0, 2, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 2, 0, 1}}}},
// TDD Configuration Index 32
{{1, {{0, 1, 1, 1}}},
{1, {{0, 1, 1, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 1, 1, 0}}}},
// TDD Configuration Index 33
{{1, {{0, 0, 0, 1}}},
{1, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 0, 0, 1}}},
{1, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 0, 0, 1}}}},
// TDD Configuration Index 34
{{1, {{0, 0, 1, 1}}},
{1, {{0, 0, 1, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 0, 1, 0}}}},
// TDD Configuration Index 35
{{2, {{0, 0, 0, 1}, {0, 0, 1, 1}}},
{2, {{0, 0, 0, 0}, {0, 0, 1, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}}},
{2, {{0, 0, 0, 1}, {1, 0, 0, 1}}},
{2, {{0, 0, 0, 0}, {1, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}}},
{2, {{0, 0, 0, 1}, {0, 0, 1, 0}}}},
// TDD Configuration Index 36
{{3, {{0, 0, 0, 1}, {0, 0, 1, 1}, {1, 0, 0, 1}}},
{3, {{0, 0, 0, 0}, {0, 0, 1, 0}, {1, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{3, {{0, 0, 0, 1}, {1, 0, 0, 1}, {2, 0, 0, 1}}},
{3, {{0, 0, 0, 0}, {1, 0, 0, 0}, {2, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{3, {{0, 0, 0, 1}, {0, 0, 1, 0}, {1, 0, 0, 1}}}},
// TDD Configuration Index 37
{{4, {{0, 0, 0, 1}, {0, 0, 1, 1}, {1, 0, 0, 1}, {1, 0, 1, 1}}},
{4, {{0, 0, 0, 0}, {0, 0, 1, 0}, {1, 0, 0, 0}, {1, 0, 1, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{4, {{0, 0, 0, 1}, {1, 0, 0, 1}, {2, 0, 0, 1}, {3, 0, 0, 1}}},
{4, {{0, 0, 0, 0}, {1, 0, 0, 0}, {2, 0, 0, 0}, {3, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{4, {{0, 0, 0, 1}, {0, 0, 1, 0}, {1, 0, 0, 1}, {1, 0, 1, 0}}}},
// TDD Configuration Index 38
{{5, {{0, 0, 0, 1}, {0, 0, 1, 1}, {1, 0, 0, 1}, {1, 0, 1, 1}, {2, 0, 0, 1}}},
{5, {{0, 0, 0, 0}, {0, 0, 1, 0}, {1, 0, 0, 0}, {1, 0, 1, 0}, {2, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{5, {{0, 0, 0, 1}, {1, 0, 0, 1}, {2, 0, 0, 1}, {3, 0, 0, 1}, {4, 0, 0, 1}}},
{5, {{0, 0, 0, 0}, {1, 0, 0, 0}, {2, 0, 0, 0}, {3, 0, 0, 0}, {4, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{5, {{0, 0, 0, 1}, {0, 0, 1, 0}, {1, 0, 0, 1}, {1, 0, 1, 0}, {2, 0, 0, 1}}}},
// TDD Configuration Index 39
{{6, {{0, 0, 0, 1}, {0, 0, 1, 1}, {1, 0, 0, 1}, {1, 0, 1, 1}, {2, 0, 0, 1}, {2, 0, 1, 1}}},
{6, {{0, 0, 0, 0}, {0, 0, 1, 0}, {1, 0, 0, 0}, {1, 0, 1, 0}, {2, 0, 0, 0}, {2, 0, 1, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{6, {{0, 0, 0, 1}, {1, 0, 0, 1}, {2, 0, 0, 1}, {3, 0, 0, 1}, {4, 0, 0, 1}, {5, 0, 0, 1}}},
{6, {{0, 0, 0, 0}, {1, 0, 0, 0}, {2, 0, 0, 0}, {3, 0, 0, 0}, {4, 0, 0, 0}, {5, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{6, {{0, 0, 0, 1}, {0, 0, 1, 0}, {1, 0, 0, 1}, {1, 0, 1, 0}, {2, 0, 0, 1}, {2, 0, 1, 0}}}},
// TDD Configuration Index 40
{{1, {{0, 1, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 1, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 1, 0, 0}}}},
// TDD Configuration Index 41
{{1, {{0, 2, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 2, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 2, 0, 0}}}},
// TDD Configuration Index 42
{{1, {{0, 1, 1, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}}},
// TDD Configuration Index 43
{{1, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{1, {{0, 0, 0, 0}}}},
// TDD Configuration Index 44
{{1, {{0, 0, 1, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}}}},
// TDD Configuration Index 45
{{2, {{0, 0, 0, 0}, {0, 0, 1, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}}},
{2, {{0, 0, 0, 0}, {1, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}}},
{2, {{0, 0, 0, 0}, {1, 0, 0, 0}}}},
// TDD Configuration Index 46
{{3, {{0, 0, 0, 0}, {0, 0, 1, 0}, {1, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{3, {{0, 0, 0, 0}, {1, 0, 0, 0}, {2, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{3, {{0, 0, 0, 0}, {1, 0, 0, 0}, {2, 0, 0, 0}}}},
// TDD Configuration Index 47
{{4, {{0, 0, 0, 0}, {0, 0, 1, 0}, {1, 0, 0, 0}, {1, 0, 1, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{4, {{0, 0, 0, 0}, {1, 0, 0, 0}, {2, 0, 0, 0}, {3, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{0, {{0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}, {0, 0, 0, 0}}},
{4, {{0, 0, 0, 0}, {1, 0, 0, 0}, {2, 0, 0, 0}, {3, 0, 0, 0}}}}};
uint8_t get_prach_fmt(int prach_ConfigIndex,int frame_type) {
if (frame_type == FDD) // FDD
return(prach_ConfigIndex>>4);
else {
if (prach_ConfigIndex < 20)
return (0);
if (prach_ConfigIndex < 30)
return (1);
if (prach_ConfigIndex < 40)
return (2);
if (prach_ConfigIndex < 48)
return (3);
else
return (4);
}
}
uint8_t get_prach_prb_offset(int frame_type,
int tdd_config,
int N_RB_UL,
uint8_t prach_ConfigIndex,
uint8_t n_ra_prboffset,
uint8_t tdd_mapindex, uint16_t Nf) {
uint8_t n_ra_prb;
uint8_t f_ra,t1_ra;
uint8_t prach_fmt = get_prach_fmt(prach_ConfigIndex,frame_type);
uint8_t Nsp=2;
if (frame_type == TDD) { // TDD
if (tdd_preamble_map[prach_ConfigIndex][tdd_config].num_prach==0) {
LOG_E(PHY, "Illegal prach_ConfigIndex %"PRIu8"", prach_ConfigIndex);
return(-1);
}
// adjust n_ra_prboffset for frequency multiplexing (p.36 36.211)
f_ra = tdd_preamble_map[prach_ConfigIndex][tdd_config].map[tdd_mapindex].f_ra;
if (prach_fmt < 4) {
if ((f_ra&1) == 0) {
n_ra_prb = n_ra_prboffset + 6*(f_ra>>1);
} else {
n_ra_prb = N_RB_UL - 6 - n_ra_prboffset + 6*(f_ra>>1);
}
} else {
if ((tdd_config >2) && (tdd_config<6))
Nsp = 2;
t1_ra = tdd_preamble_map[prach_ConfigIndex][tdd_config].map[0].t1_ra;
if ((((Nf&1)*(2-Nsp)+t1_ra)&1) == 0) {
n_ra_prb = 6*f_ra;
} else {
n_ra_prb = N_RB_UL - 6*(f_ra+1);
}
}
} else { //FDD
n_ra_prb = n_ra_prboffset;
}
return(n_ra_prb);
}
int is_prach_subframe0(int tdd_config,int frame_type,uint8_t prach_ConfigIndex,uint32_t frame, uint8_t subframe) {
uint8_t t0_ra;
uint8_t t1_ra;
uint8_t t2_ra;
int prach_mask = 0;
if (frame_type == FDD) { //FDD
//implement Table 5.7.1-2 from 36.211 (Rel-10, p.41)
if ((((frame&1) == 1) && (subframe < 9)) ||
(((frame&1) == 0) && (subframe == 9))) // This is an odd frame, ignore even-only PRACH frames
if (((prach_ConfigIndex&0xf)<3) || // 0,1,2,16,17,18,32,33,34,48,49,50
((prach_ConfigIndex&0x1f)==18) || // 18,50
((prach_ConfigIndex&0xf)==15)) // 15,47
return(0);
switch (prach_ConfigIndex&0x1f) {
case 0:
case 3:
if (subframe==1) prach_mask = 1;
break;
case 1:
case 4:
if (subframe==4) prach_mask = 1;
break;
case 2:
case 5:
if (subframe==7) prach_mask = 1;
break;
case 6:
if ((subframe==1) || (subframe==6)) prach_mask=1;
break;
case 7:
if ((subframe==2) || (subframe==7)) prach_mask=1;
break;
case 8:
if ((subframe==3) || (subframe==8)) prach_mask=1;
break;
case 9:
if ((subframe==1) || (subframe==4) || (subframe==7)) prach_mask=1;
break;
case 10:
if ((subframe==2) || (subframe==5) || (subframe==8)) prach_mask=1;
break;
case 11:
if ((subframe==3) || (subframe==6) || (subframe==9)) prach_mask=1;
break;
case 12:
if ((subframe&1)==0) prach_mask=1;
break;
case 13:
if ((subframe&1)==1) prach_mask=1;
break;
case 14:
prach_mask=1;
break;
case 15:
if (subframe==9) prach_mask=1;
break;
}
} else { // TDD
AssertFatal(prach_ConfigIndex<64,
"Illegal prach_ConfigIndex %d for ",prach_ConfigIndex);
AssertFatal(tdd_preamble_map[prach_ConfigIndex][tdd_config].num_prach>0,
"Illegal prach_ConfigIndex %d for ",prach_ConfigIndex);
t0_ra = tdd_preamble_map[prach_ConfigIndex][tdd_config].map[0].t0_ra;
t1_ra = tdd_preamble_map[prach_ConfigIndex][tdd_config].map[0].t1_ra;
t2_ra = tdd_preamble_map[prach_ConfigIndex][tdd_config].map[0].t2_ra;
#ifdef PRACH_DEBUG
LOG_I(PHY,"[PRACH] Checking for PRACH format (ConfigIndex %d) in TDD subframe %d (%d,%d,%d)\n",
prach_ConfigIndex,
subframe,
t0_ra,t1_ra,t2_ra);
#endif
if ((((t0_ra == 1) && ((frame &1)==0))|| // frame is even and PRACH is in even frames
((t0_ra == 2) && ((frame &1)==1))|| // frame is odd and PRACH is in odd frames
(t0_ra == 0)) && // PRACH is in all frames
(((subframe<5)&&(t1_ra==0)) || // PRACH is in 1st half-frame
(((subframe>4)&&(t1_ra==1))))) { // PRACH is in 2nd half-frame
if ((prach_ConfigIndex<48) && // PRACH only in normal UL subframe
(((subframe%5)-2)==t2_ra)) prach_mask=1;
else if ((prach_ConfigIndex>47) && (((subframe%5)-1)==t2_ra)) prach_mask=1; // PRACH can be in UpPTS
}
}
return(prach_mask);
}
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