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下面是协议25.321 V7.10.0中的一段,求各位神仙帮我简单理解一下,我是通信菜鸟
提问者:ewinda1989   |  提问时间:2012-10-12 10:11
11.6.2.3.2 Reordering functionality If no timer T1 is active: - thetimer T1 shall be started when a MAC-hs PDU with TSN > next_expected_TSN iscorrectly received. - T1_TSNshall be set to the TSN of this MAC-hs PDU. If a timer T1 is already active: - noadditional timer shall be started, i.e. only one timer T1 may be active at agiven time. The timer T1 shall be stopped if: - theMAC-hs PDU with TSN = T1_TSN can be delivered to the disassembly entity beforethe timer expires. When the timer T1expires and T1_TSN >next_expected_TSN: - allcorrectly received MAC-hs PDUs with TSN > next_expected_TSN up to andincluding T1_TSN-1 shall be delivered to the disassembly entity; - allcorrectly received MAC-hs PDUs up to the next not receivedMAC-hs PDU shall be delivered to the disassembly entity. - next_expected_TSNshall be set to the TSN of the next not received MAC-hs PDU. When the timer T1 is stopped or expires,and there still exist some received MAC-hs PDUs that can not be delivered tohigher layer: - timerT1 is started - setT1_TSN to the highest TSN among those of the MAC-hs PDUs that can not bedelivered.
too difficutl ot understand
回答时间:2012-10-16 09:39
 
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