Harald Welte
2ae45aba3f
Random access is allowed on VGCS / VBS channels to access the uplink or to detect listeners. Uplink Access from a listener is only reported once after activating the channel. Uplink Access from a talker is reported each time the uplink becomes occupied. RSL TALKER/LISTENER DETECT messages are sent to the bsc. The VGCS UPLINK GRANT message is sent by the BTS itself. Timer T3115 is used to repeat the message up to NY2 times until one valid frame is received from the MS (CM service request). The UPLINK BUSY / UPLINK FREE message must be sent by the BSC. The uplink is released by UPLINK RELEASE message from the MS or from the BSC. Afterwards the UPLINK FREE message causes the MS to leave the uplink without any acknowlege. An RSL REL-REQ must be used to terminate the link locally. (Without layer 2 DISC procedure.) Change-Id: I1bd07ab6802341b09a06e89df356665ffaf6d2bf Related: OS#4851 |
||
|---|---|---|
| .. | ||
| common | ||
| osmo-bts-lc15 | ||
| osmo-bts-oc2g | ||
| osmo-bts-octphy | ||
| osmo-bts-omldummy | ||
| osmo-bts-sysmo | ||
| osmo-bts-trx | ||
| osmo-bts-virtual | ||
| Makefile.am | ||