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(普通问题)
提问者:
• lte atTACh何时会携带imsi 2020-10-30
• 5G网络UE开机进入空闲态后，在AtTACh流程中会执行哪些操作？ 2019-09-17
• 5G网络UE开机进入空闲态后，在AtTACh流程中会执行哪些操作 2019-08-06
• atTACh附着 2018-10-12
• mate9连probe做不了AtTACh，有大神知道怎么解决 2017-03-17
• 终端进行atTACh中的pdn连接请求 2017-03-06
• 关于上发的deTAChrequest的原因 2017-03-02
• 手机上发imsideTAChindication导致掉话，求分析 2016-11-03
• 5G网络UE开机进入空闲态后，在AtTACh流程中会执行哪些操作？ 2019-09-17
• 5G网络UE开机进入空闲态后，在AtTACh流程中会执行哪些操作 2019-08-06
• atTACh附着 2018-10-12
• mate9连probe做不了AtTACh，有大神知道怎么解决 2017-03-17
• 终端进行atTACh中的pdn连接请求 2017-03-06
• 关于上发的deTAChrequest的原因 2017-03-02
• 手机上发imsideTAChindication导致掉话，求分析 2016-11-03
问题答案
( 2 )
哈哈， 我猜 paging里面是按照imsi做的paging吧 ？
回答者：
ebrain68
回答时间：2014-05-21 13:36
10
6
是IMSI，求详解
hlsfy 2014-05-21 14:11
en ,那就是了，这个paging应该是网络测出现了状况，你可以咨询epc的人，下面是这个地方的描述：
Paging for EPS services using IMSI is an abnormal procedure used for error recovery in the network.
The network may initiate paging for EPS services using IMSI with CN domain indicator set to "PS" if the S-TMSI is not available due to a network failure (see example in figure 5.6.2.2.2.1).
Figure 5.6.2.2.2.1: Paging procedure using IMSI
In S1 mode, to initiate the procedure the EMM entity in the network requests the lower layer to start paging. If the TAI list is not available due to a network failure, the network may perform the paging within all tracking areas served by the MME (see 3GPP TS 36.331 [22] and 3GPP TS 36.413 [23]).
When a UE receives a paging for EPS services using IMSI from the network before a UE initiated EMM specific procedure has been completed, then the UE shall abort the EMM specific procedure and proceed according to the description in this subclause.
Upon reception of a paging for EPS services using IMSI, the UE shall locally deactivate any EPS bearer context(s) and locally detach from EPS. Additionally the UE shall delete the following parameters: last visited registered TAI, TAI list, GUTI and KSIASME. The UE shall set the EPS update status to EU2 NOT UPDATED and change the state to EMM-DEREGISTERED.
If A/Gb mode or Iu mode is supported by the UE, the UE shall in addition handle the GMM parameters GMM state, GPRS update status, P-TMSI, P-TMSI signature, RAI, and GPRS ciphering key sequence number as specified in 3GPP TS 24.008 [13] for the case when a paging for GPRS services using IMSI is received.
After performing the local detach, the UE shall then perform an attach procedure as described in subclause 5.5.1.2. If the UE is operating in CS/PS mode 1 or CS/PS mode 2 of operation, then the UE shall perform a combined attach procedure as described in subclause 5.5.1.3.
NOTE 1: In some cases, user interaction can be required, thus the UE cannot activate the dedicated bearer context(s) automatically.
NOTE 2: The UE does not respond to the paging except with the attach request, hence timer T3413 in the network is not used when paging with IMSI.
5.6.2.2.2 Paging for EPS services through E-UTRAN using IMSI
Paging for EPS services using IMSI is an abnormal procedure used for error recovery in the network.
The network may initiate paging for EPS services using IMSI with CN domain indicator set to "PS" if the S-TMSI is not available due to a network failure (see example in figure 5.6.2.2.2.1).
Figure 5.6.2.2.2.1: Paging procedure using IMSI
In S1 mode, to initiate the procedure the EMM entity in the network requests the lower layer to start paging. If the TAI list is not available due to a network failure, the network may perform the paging within all tracking areas served by the MME (see 3GPP TS 36.331 [22] and 3GPP TS 36.413 [23]).
When a UE receives a paging for EPS services using IMSI from the network before a UE initiated EMM specific procedure has been completed, then the UE shall abort the EMM specific procedure and proceed according to the description in this subclause.
Upon reception of a paging for EPS services using IMSI, the UE shall locally deactivate any EPS bearer context(s) and locally detach from EPS. Additionally the UE shall delete the following parameters: last visited registered TAI, TAI list, GUTI and KSIASME. The UE shall set the EPS update status to EU2 NOT UPDATED and change the state to EMM-DEREGISTERED.
If A/Gb mode or Iu mode is supported by the UE, the UE shall in addition handle the GMM parameters GMM state, GPRS update status, P-TMSI, P-TMSI signature, RAI, and GPRS ciphering key sequence number as specified in 3GPP TS 24.008 [13] for the case when a paging for GPRS services using IMSI is received.
After performing the local detach, the UE shall then perform an attach procedure as described in subclause 5.5.1.2. If the UE is operating in CS/PS mode 1 or CS/PS mode 2 of operation, then the UE shall perform a combined attach procedure as described in subclause 5.5.1.3.
NOTE 1: In some cases, user interaction can be required, thus the UE cannot activate the dedicated bearer context(s) automatically.
NOTE 2: The UE does not respond to the paging except with the attach request, hence timer T3413 in the network is not used when paging with IMSI.
ebrain68 2014-05-25 00:30
此前UE做了两次TAU,UE可能是进入新的TAC,RRC进行释放;中断了同网络的连接;因此重新发起Attach请求...
回答者：
litom2004
回答时间：2014-05-21 14:39
11
10
正常的TAU都会有rrc的连接与释放的，这是信令的建立与释放，但这不影响在网状态吧。
hlsfy 2014-05-21 14:44
根据楼主的截图,UE在ATTACH之后仍在4G网络中进行信令交互,还没有收到回落2G的RRC释放消息!
litom2004 2014-05-22 15:27
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