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問題已開啟
(普通問題)
提問者:
• lte atTACh何時(shí)會攜帶imsi 2020-10-30
• 5G網(wǎng)絡(luò)UE開機(jī)進(jìn)入空閑態(tài)后，在AtTACh流程中會執(zhí)行哪些操作？ 2019-09-17
• 5G網(wǎng)絡(luò)UE開機(jī)進(jìn)入空閑態(tài)后，在AtTACh流程中會執(zhí)行哪些操作 2019-08-06
• atTACh附著 2018-10-12
• mate9連probe做不了AtTACh，有大神知道怎么解決 2017-03-17
• 終端進(jìn)行atTACh中的pdn連接請求 2017-03-06
• 關(guān)于上發(fā)的deTAChrequest的原因 2017-03-02
• 手機(jī)上發(fā)imsideTAChindication導(dǎo)致掉話，求分析 2016-11-03
• 5G網(wǎng)絡(luò)UE開機(jī)進(jìn)入空閑態(tài)后，在AtTACh流程中會執(zhí)行哪些操作？ 2019-09-17
• 5G網(wǎng)絡(luò)UE開機(jī)進(jìn)入空閑態(tài)后，在AtTACh流程中會執(zhí)行哪些操作 2019-08-06
• atTACh附著 2018-10-12
• mate9連probe做不了AtTACh，有大神知道怎么解決 2017-03-17
• 終端進(jìn)行atTACh中的pdn連接請求 2017-03-06
• 關(guān)于上發(fā)的deTAChrequest的原因 2017-03-02
• 手機(jī)上發(fā)imsideTAChindication導(dǎo)致掉話，求分析 2016-11-03
問題答案
( 2 )
哈哈， 我猜 paging里面是按照imsi做的paging吧 ？
回答者：
ebrain68
回答時(shí)間：2014-05-21 13:36
10
6
是IMSI，求詳解
hlsfy 2014-05-21 14:11
en ,那就是了，這個(gè)paging應(yīng)該是網(wǎng)絡(luò)測出現(xiàn)了狀況，你可以咨詢epc的人，下面是這個(gè)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做了兩次TAU,UE可能是進(jìn)入新的TAC,RRC進(jìn)行釋放;中斷了同網(wǎng)絡(luò)的連接;因此重新發(fā)起Attach請求...
回答者：
litom2004
回答時(shí)間：2014-05-21 14:39
11
10
正常的TAU都會有rrc的連接與釋放的，這是信令的建立與釋放，但這不影響在網(wǎng)狀態(tài)吧。
hlsfy 2014-05-21 14:44
根據(jù)樓主的截圖,UE在ATTACH之后仍在4G網(wǎng)絡(luò)中進(jìn)行信令交互,還沒有收到回落2G的RRC釋放消息!
litom2004 2014-05-22 15:27
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