libosmogsm  1.3.0.107-6370
Osmocom GSM library
gsm0502.h File Reference
#include <stdint.h>
#include <osmocom/gsm/protocol/gsm_04_08.h>
#include <osmocom/gsm/protocol/gsm_08_58.h>

Go to the source code of this file.

Enumerations

enum  gsm0502_fn_remap_channel {
  FN_REMAP_TCH_F,
  FN_REMAP_TCH_H0,
  FN_REMAP_TCH_H1,
  FN_REMAP_FACCH_F,
  FN_REMAP_FACCH_H0,
  FN_REMAP_FACCH_H1,
  FN_REMAP_MAX
}
 

Functions

static unsigned int gsm0502_get_n_pag_blocks (struct gsm48_control_channel_descr *chan_desc)
 
static unsigned int gsm0502_get_ccch_group (uint64_t imsi, unsigned int bs_cc_chans, unsigned int n_pag_blocks)
 
static unsigned int gsm0502_get_paging_group (uint64_t imsi, unsigned int bs_cc_chans, int n_pag_blocks)
 
unsigned int gsm0502_calc_paging_group (struct gsm48_control_channel_descr *chan_desc, uint64_t imsi)
 
uint32_t gsm0502_fn_remap (uint32_t fn, enum gsm0502_fn_remap_channel channel)
 Calculate the frame number of the beginning of a block. More...
 
uint16_t gsm0502_hop_seq_gen (const struct gsm_time *t, uint8_t hsn, uint8_t maio, size_t n, const uint16_t *ma)
 Hopping sequence generation as per 3GPP TS 45.002, section 6.2.3. More...
 

Enumeration Type Documentation

◆ gsm0502_fn_remap_channel

Enumerator
FN_REMAP_TCH_F 
FN_REMAP_TCH_H0 
FN_REMAP_TCH_H1 
FN_REMAP_FACCH_F 
FN_REMAP_FACCH_H0 
FN_REMAP_FACCH_H1 
FN_REMAP_MAX 

Function Documentation

◆ gsm0502_calc_paging_group()

unsigned int gsm0502_calc_paging_group ( struct gsm48_control_channel_descr chan_desc,
uint64_t  imsi 
)

◆ gsm0502_fn_remap()

uint32_t gsm0502_fn_remap ( uint32_t  fn,
enum gsm0502_fn_remap_channel  channel 
)

Calculate the frame number of the beginning of a block.

Parameters
[in]fnframe number of the block ending.
[in]channelchannel type (see also enum fn_remap_channel).
Returns
frame number of the beginning of the block or input frame number if remapping was not possible.

References ARRAY_SIZE, fn_remap_table::blockend, fn_remap_table::cycle, fn_remap_table::distance, DLGLOBAL, GSM_MAX_FN, fn_remap_table::len, LOGL_ERROR, LOGP, and OSMO_ASSERT.

◆ gsm0502_get_ccch_group()

static unsigned int gsm0502_get_ccch_group ( uint64_t  imsi,
unsigned int  bs_cc_chans,
unsigned int  n_pag_blocks 
)
inlinestatic

◆ gsm0502_get_n_pag_blocks()

static unsigned int gsm0502_get_n_pag_blocks ( struct gsm48_control_channel_descr chan_desc)
inlinestatic

◆ gsm0502_get_paging_group()

static unsigned int gsm0502_get_paging_group ( uint64_t  imsi,
unsigned int  bs_cc_chans,
int  n_pag_blocks 
)
inlinestatic

◆ gsm0502_hop_seq_gen()

uint16_t gsm0502_hop_seq_gen ( const struct gsm_time t,
uint8_t  hsn,
uint8_t  maio,
size_t  n,
const uint16_t *  ma 
)

Hopping sequence generation as per 3GPP TS 45.002, section 6.2.3.

Parameters
[in]tGSM time (TDMA frame number, T1/T2/T3).
[in]hsnHopping Sequence Number.
[in]maioMobile Allocation Index Offset.
[in]nnumber of entries in mobile allocation (arfcn table).
[in]maarray of ARFCNs (sorted in ascending order) representing the Mobile Allocation.
Returns
ARFCN to use for given input parameters at time 't' or Mobile Allocation Index if ma == NULL.

References gsm_time::fn, gsm_time::t1, gsm_time::t2, and gsm_time::t3.