diff options
Diffstat (limited to 'doc/ms-channel-request.msc')
-rw-r--r-- | doc/ms-channel-request.msc | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/doc/ms-channel-request.msc b/doc/ms-channel-request.msc deleted file mode 100644 index 1c5b4bfb3..000000000 --- a/doc/ms-channel-request.msc +++ /dev/null @@ -1,59 +0,0 @@ -msc { - hscale=2; - ms [label="MS"], bts [label="BTS"], bsc[label="BSC"], bsc_lchan[label="BSC lchan FSM"]; - - ms note bsc_lchan [label="lchan allocation sequence for RSL Channel Request"]; - - ms => bts [label="RR Channel Request"]; - bts => bsc [label="RSL Channel Request"]; - bsc box bsc [label="rsl_rx_chan_rqd()"]; - bsc note bsc [label="Obtain RACH data from Request: - Reference - Access Delay (TA) - - Request Reason - Channel Type"]; - bsc note bsc [label="If the reason is PDCH, the RACH Request is forwarded to PCU and BSC is no - longer concerned (rsl_rx_pchan_rqd())."]; - bsc note bsc [label="Always try to allocate an SDCCH regardless of the requested type, only if no - SDCCH is available, look for the actually requested channel type."]; - bsc box bsc [label="lchan_select_by_type(SDCCH)"]; - - --- [label="IF no lchan is available (neither SDCCH nor requested type)"]; - bsc note bsc [label="Figure out T3122 value from bts->T3122, network->T3122 or - GSM_T3122_DEFAULT"]; - bsc box bsc [label="rsl_send_imm_ass_rej(wait_ind=T3122)"]; - bsc note bsc [label="..."]; - bts <= bsc [label="RR Immediate Assign Reject"]; - ms <= bts [label="RR Immediate Assign Reject (possibly grouped with up to 4 others)"]; - bsc note bsc [label="rsl_rx_pchan_rqd() exits, no channel is allocated."]; - --- [label="END: no lchan is available"]; - - bsc box bsc [label="Store RACH data in lchan->rqd_ref, rqd_ta"]; - bsc -> bsc_lchan [label="lchan_allocate(FOR_MS_CHANNEL_REQUEST)"]; - bsc_lchan abox bsc_lchan [label="LCHAN_ST_WAIT_ACTIV_ACK\nT3103"]; - bsc_lchan note bsc_lchan [label="The lchan FSM knows that FOR_MS_CHANNEL_REQUEST is about - Immediate Assignment."]; - bts <= bsc_lchan [label="RSL Chan Activ (Immediate Assignment)"]; - ...; - --- [label="on any error"]; - bts <= bsc_lchan [label="RR Immediate Assign Reject"]; - ms <= bts [label="RR Immediate Assign Reject (possibly grouped with up to 4 others)"]; - ---; - ...; - bts => bsc_lchan [label="RSL Chan Activ ACK"]; - bsc_lchan abox bsc_lchan [label="LCHAN_ST_WAIT_\nRLL_ESTABLISH\ncontinue T3103"]; - ...; - --- [label="on timeout"]; - bsc_lchan box bsc_lchan [label="lchan_error_release(deact_sacch=true)"]; - bsc_lchan abox bsc_lchan [label="LCHAN_ST_WAIT_RF_RELEASE_ACK"]; - bts <= bsc_lchan [label="RLL Release Request (Local End)..."]; - bts <= bsc_lchan [label="...for all SAPIs including [0]"]; - bts <= bsc_lchan [label="RSL Deactivate SACCH"]; - bts <= bsc_lchan [label="RSL RF Channel Release"]; - ...; - bts => bsc_lchan [label="RSL RF Channel Release ACK"]; - bsc_lchan abox bsc_lchan [label="LCHAN_ST_WAIT_AFTER_ERROR"]; - ...; - bsc_lchan abox bsc_lchan [label="LCHAN_ST_UNUSED"]; - ---; - ms => bsc_lchan [label="RLL Establish Ind"]; - bsc_lchan box bsc_lchan [label="associate lchan FSM with new conn FSM"]; - bsc_lchan abox bsc_lchan [label="LCHAN_ST_ACTIVE"]; -} |