Cedric Roux
3310f5c6b0
This commit introduces an alternative RLC implementation based on 36.322 version 8. AM and UM done, TM not done. See openair2/LAYER2/rlc_v2/TODO for missing parts.
91 lines
2.8 KiB
C
91 lines
2.8 KiB
C
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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#ifndef _RLC_ENTITY_UM_H_
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#define _RLC_ENTITY_UM_H_
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#include "rlc_entity.h"
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#include "rlc_pdu.h"
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#include "rlc_sdu.h"
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typedef struct {
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char sdu[SDU_MAX]; /* sdu is reassembled here */
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int sdu_pos; /* next byte to put in sdu */
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/* decoder of current PDU */
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rlc_pdu_decoder_t dec;
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int sn;
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int sdu_head_missing;
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} rlc_um_reassemble_t;
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typedef struct {
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rlc_entity_t common;
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/* configuration */
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int t_reordering;
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int sn_field_length;
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int sn_modulus; /* 1024 for sn_field_length == 10, 32 for 5 */
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int window_size; /* 512 for sn_field_length == 10, 16 for 5 */
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/* runtime rx */
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int vr_ur;
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int vr_ux;
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int vr_uh;
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/* runtime tx */
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int vt_us;
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/* set to the latest know time by the user of the module. Unit: ms */
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uint64_t t_current;
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/* timers (stores the TTI of activation, 0 means not active) */
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uint64_t t_reordering_start;
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/* rx management */
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rlc_rx_pdu_segment_t *rx_list;
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int rx_size;
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int rx_maxsize;
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/* reassembly management */
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rlc_um_reassemble_t reassemble;
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/* tx management */
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rlc_sdu_t *tx_list;
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rlc_sdu_t *tx_end;
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int tx_size;
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int tx_maxsize;
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} rlc_entity_um_t;
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void rlc_entity_um_recv_sdu(rlc_entity_t *_entity, char *buffer, int size,
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int sdu_id);
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void rlc_entity_um_recv_pdu(rlc_entity_t *entity, char *buffer, int size);
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rlc_entity_buffer_status_t rlc_entity_um_buffer_status(
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rlc_entity_t *entity, int maxsize);
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int rlc_entity_um_generate_pdu(rlc_entity_t *_entity, char *buffer, int size);
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void rlc_entity_um_set_time(rlc_entity_t *entity, uint64_t now);
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void rlc_entity_um_discard_sdu(rlc_entity_t *entity, int sdu_id);
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void rlc_entity_um_reestablishment(rlc_entity_t *entity);
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void rlc_entity_um_delete(rlc_entity_t *entity);
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#endif /* _RLC_ENTITY_UM_H_ */
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