Zte ZXG10-OB06, Техническое руководство

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ZXG10-OB06 (V1.0) Integrated Outdoor GSM Base Station Technical Manual
50 Confidential and Proprietary Information of ZTE CORPORATION
Figure 28 shows the Link release failure.
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The BSC requests the release of one multi-frame-mode link layer
connection (SAPI=3) on wireless path.
The OB06 sends a DISC frame and starts the timer T200 at the same time.
If the UA or Dm frame is not received until T200 expires, it resends DISC
and the resend timer increases by one. If the failure continues, the L3
receives the Dm_DL_RELEASE_INDICATION and
MDL_ERROR_INDICATION primitives from the data link layer. The latter
primitive records the failure cause: ‘timer T200 expires for N200 + 1 times:
Execution is released abnormally’.
T r a n s p a r e n t L 3 M e s s a g e S e n d i n g a n d
R e c e i v i n g i n A c k n o w l e d g m e n t M o d e
Figure 29 shows the transmission.
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