Recent posts under tag mme

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UE context release request and signal loss

posted Feb 18, 2021 by Jane Austen

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Does NAS messages affected while doing Hand over procedure in LTE or 5G ?

posted Dec 1, 2020 by anonymous

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MME not send detach to eNB during cancell location from HSS in case of ESM-idle

posted Feb 19, 2020 by Aleksei

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What is CGI report during HO?Is this mean cell group ID?

posted Feb 3, 2020 by Akhilesh

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Diameter S6a: Delete subscriber data from HSS

posted Dec 19, 2019 by Michael Semama

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Could any please tell the Nas messages and security impact during s1 hand over in lte?

posted Nov 6, 2019 by Rakesh Kumar Suman

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Does NAS affected while doing HO procedure ? if affected, which NAS messages ?

posted Oct 17, 2019 by Rakesh Kumar Suman

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what is the procedure to fail the PGW initiated dedicated radio bearer, after attach in LTE

posted Aug 6, 2019 by anonymous

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imsi in attach request mesage going?exactly which message

posted Jun 6, 2019 by Narasimha K

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HO: If target ENB is not serviced by source MME then How source MME sends HO request?

posted May 24, 2019 by Bharat Kumar

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PDN GW address provided by the HSS in S6a-IDR

posted May 21, 2019 by Michael Semama

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When NAS security mode fails, which procedure should we follow?

posted May 20, 2019 by Narasimha K

+1 vote

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volte call failed with Unknown NAS message

posted Mar 19, 2019 by Sivakumar.d

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During initial attach why MME assigns EPS bearer id 5 Is there any reason?

posted Feb 28, 2019 by Gnanendra Reddy

+1 vote

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LTE: How does international roaming work ?

posted Jan 13, 2019 by Harshita

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LTE: How does UE selects attach type in attach request message ?

posted Jan 11, 2019 by Harshita

+2 votes

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How PGW reconfigures default bearer if it supports multiple APN?

posted Jan 3, 2019 by Akhilesh

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Is it possible any scenario when sctp communication is up between mme and eNodeB but s1ap wil not be up ?

posted Nov 30, 2018 by anonymous

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Does anybody know how to recognize LT-M traffic on MME, since there is no specific RAB Type?

posted Nov 15, 2018 by anonymous

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LTE: What action should be taken by MME if UE re-attach without detaching from network ?

posted Oct 24, 2018 by Vikram Singh

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LTE: How SMS service is provided in LTE network in both the cases when UE does combined or LTE only attach ?

posted Oct 11, 2018 by Vikram Singh

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LTE: How the uplink and downlink data flow through indirect data forwarding tunnels in S1- handover ?

posted Oct 5, 2018 by Vikram Singh

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Is it mandatory that X2 connection established between cell have single MME ?

posted Sep 30, 2018 by Rakesh Kumar Suman

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What restricts in india to make an emergency call without SIM?

posted Sep 3, 2018 by Jaganathan

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Modification of the Default APN

posted Aug 12, 2018 by Michael Semama

+1 vote

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Getting " requested service option not subscribed" in attach reject While requesting with pdn request type as "handover

posted Aug 2, 2018 by Jaganathan

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LTE: When SGW triggers "stop paging" message to MME ?

posted Jul 28, 2018 by Harshita

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LTE: Why MME UE S1AP ID is of length 32 bits and eNodeB UE S1AP ID of length 24 bits only ?

posted Jul 17, 2018 by Harshita

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Calculating Active timer, periodic TAU timer value during PSM(Power saving Mode) at EPC/MME

posted Jul 12, 2018 by Althi Rajeswararao

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In Which scenario ENB sends DETACH request with EPS service not allowed?

posted Jul 11, 2018 by Jaganathan

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LTE: Why MME sends Update Location Request message after enabling the security ?

posted Jul 8, 2018 by Harshita

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LTE: Either "ECGI" or "TAI", which one is considered by a MME to make SGW selection for CS request ?

posted Jul 6, 2018 by Harshita

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LTE: What is the use of served party IP address AVP in Update Location Answer message ?

posted Jul 6, 2018 by Harshita

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What happens after RLC Reset during handover procedure ?

posted Jun 18, 2018 by Jaganathan

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Diameter S6a CLR to MME on transition to 3G registration

posted Jun 18, 2018 by Michael Semama

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LTE: When an operator starts to broadcast multiple PLMNs in a LTE cell ?

posted Jun 9, 2018 by Harshita

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LTE: Does the encoding steps for PLMN vary in case of two and three digits MNC at eNodeB ?

posted Jun 1, 2018 by Vimal Kumar Mishra

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LTE: How a MME find out current serving plmn for an UE as selected plmn is communicated in RRC message ?

posted May 28, 2018 by Vikram Singh

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LTE: How many S1-links are established by an eNodeB with MME(s) ?

posted May 20, 2018 by Harshita

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LTE: Why Linked Bearer Identity (LBI) is associated with a dedicated bearer ?

posted May 18, 2018 by Harshita

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LTE: Which cause MME sends in s1-setup failure when TAI received in S1-setup request not found at MME ?

posted May 18, 2018 by Vimal Kumar Mishra

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LTE: Why presence of Tracking Area Identity (TAI) and E-UTRAN CGI (ECGI) IEs is mandatory in Uplink NAS Transport ?

posted May 16, 2018 by Vimal Kumar Mishra

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LTE: What is the use of different types of tracking area list for an UE provided by MME ?

posted May 15, 2018 by Harshita

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LTE: How does MME find PGW IP address serving an APN so that it can send CS Request to right PGW ?

posted May 11, 2018 by Ganesh

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LTE: Why does SGW include S5/S8 interface PGW-C F-TEID in Create Session Response message to MME ?

posted Apr 29, 2018 by Ganesh

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LTE: Why MME does replay of UE Security Capabilities in the Security mode command message ?

posted Apr 29, 2018 by Harshita

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LTE: What MME does when it receives Regional-Subscription-Zone-Code AVP in the Update-Location-Answer message ?

posted Apr 28, 2018 by Harshita

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LTE: When MME asks HSS to provide more than one authentication vectors in Authentication-Information-Answer message ?

posted Apr 27, 2018 by Vikram Singh

+3 votes

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"Homogeneous Support of IMS Voice Over PS Sessions" in S6a ULR

posted Apr 23, 2018 by Michael Semama

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X2 HO preparation success rate suddenly decreased with root cause as invalid MME Group ID and MME Group ID is unique?

posted Apr 17, 2018 by anonymous