Smartphone signaling

[banisha]

Hi all,

Evaluation of smartphone impact on network is needed.
Some advice please on which counters, and KPI to follow to best estimate this influence of smartphones on our 3G network.
Network vendor is NSN.

Ideas and advice are welcome.

Thanks!

[vsousa]

Hi Banisha,

One of most crucial impacts of the smartphones on a 3G nw is Signalling on the RNC (cpu load), and the constant change of RRC states, usually caused by chatty apps, there is already very interesting reports about this done by several vendors and other company's, you can find it here in the forum, (e.g. Signals research (very good) , Huawei, ...)
Hope it helps

[RF engineer]

Dear

can you share some huawei document about this signalling

BR

[vsousa]

You can find in attach the Huawei doc about this

29703

Regards

if it helps give reps

[tyberry]

I'm extremely interested in this posts, I'm looking to understand device performance for Smartphones on 4G LTE networks, the networks are E******* 4G LTE and Alcatel Lucent 4G LTE. I'm interested in finding if anyone can share Tektronix IrisView traffic samples of NAS EMM/ESM Failure cause codes sample files. I need to find out which devices are experiencing which types of failure cause codes and why in the network, and then finally compare between E******* and Alcatel Lucent. The list of failure cause codes associated to procedures is as follows, if any one can send any LTE traffic captures and also any experience/case studies that would be extremely helpful?

In the coming weeks I will be putting some examples together for my specific customer but i need some ideas from other networks?



Response Code Protocol
Procedure
Response Code Category
Response Code ID
Response Code Name


S1MME NAS EMM
Attach
General Failure
70000
Timeout


S1MME NAS ESM
Bearer Resource Allocation

2
IMSI unknown in HSS



Bearer Resource Modification

3
Illegal UE



Combined Attach

6
Illegal ME



Combined Tracking Area Update

7
EPS services not allowed



Dedicated EPS Bearer Context Activation
8
EPS services and non-EPS services not allowed/Operator determined barring



Default EPS Bearer Context Activation
9
UE identity cannot be derived by the network



EMM Authentication

10
Implicitly detached



EMM First Paging

11
PLMN not allowed



EMM GUTI Reallocation

12
Tracking area not allowed



EMM Identification

13
Roaming not allowed in this tracking area



EMM Paging

14
EPS services not allowed in this PLMN



EMM Security Mode Control

15
No suitable cells in tracking area



EPS Bearer Context Deactivation

16
MSC temporarily not reachable



EPS Bearer Context Modification

17
Network failure



Extended Service Request - MO Call
18
CS domain not available



Extended Service Request - MO Emergency Call
19
ESM failure



Extended Service Request - MT Call
20
MAC failure



Network Initiated Detach - IMSI Detach
21
Synch failure



Network Initiated Detach - Re-attach Not Required
22
Congestion



Network Initiated Detach - Re-attach Required
23
UE security capabilities mismatch



Normal Tracking Area Update

24
Security mode rejected, unspecified



Periodic Tracking Area Update

25
Not authorized for this CSG



Service Request

26
Insufficient resources/Non-EPS authentication unacceptable



UE Initiated Detach - Combined Detach
27
Unknown or missing access point name



UE Initiated Detach - EPS Detach

28
Unknown PDN type



UE Initiated Detach - IMSI Detach

29
User authentication failed



UE Requested PDN Connectivity - Handover
30
Request rejected by Serving GW or PDN GW



UE Requested PDN Connectivity - Initial Request
31
Request rejected, unspecified



UE Requested PDN Disconnect

32
Service option not supported





33
Requested service option not subscribed





34
Service option temporarily out of order





35
PTI already in use





37
EPS QoS not accepted





38
Network failure





39
CS domain temporarily not available





40
No EPS bearer context activated





41
Semantic error in the TFT operation





42
Syntactical error in the TFT operation





43
Invalid EPS bearer identity





44
Semantic errors in packet filter(s)





45
Syntactical error in packet filter(s)





46
EPS bearer context without TFT already activated





47
PTI mismatch





49
Last PDN disconnection not allowed





50
PDN type IPv4 only allowed





51
PDN type IPv6 only allowed





52
Single address bearers only allowed





53
ESM information not received





54
PDN connection does not exist





55
Multiple PDN connections for a given APN not allowed





56
Collision with network initiated request





59
Unsupported QCI value





81
Invalid PTI value





95
Semantically incorrect message





96
Invalid mandatory information





97
Message type non-existent or not implemented





98
Message type not compatible with protocol state





99
Information element non-existent or not implemented





100
Conditional IE error





101
Message not compatible with protocol state





111
Protocol error, unspecified





112
APN restriction value incompatible with active EPS bearer context

[tyberry]

One example I saw was E******* 4G network, they had enable a patch which improved the RRC drop rate nation wide, (change of a parameter on the Implicit Detach) the results were compared to all the devices and all had seen an improvement apart from the ******** droid model which was still experiencing a lot of problems.

Such are examples that I'm looking for? plus any 4G traffic captures from Tek/JDSU/Anritsu...anyone basically?

[banisha]

Hi Banisha,

One of most crucial impacts of the smartphones on a 3G nw is Signalling on the RNC (cpu load), and the constant change of RRC states, usually caused by chatty apps, there is already very interesting reports about this done by several vendors and other company's, you can find it here in the forum, (e.g. Signals research (very good) , Huawei, ...)
Hope it helps

Hi,

These are the documents that I already read. I am now interested in specific counters and KPI that can be followed on NSN vendor.
The goal is to make smartphone report that can be later compared to another network with different equipment vendor and compare smartphone impact.

BR

[vsousa]

I'm extremely interested in this posts, I'm looking to understand device performance for Smartphones on 4G LTE networks, the networks are E******* 4G LTE and Alcatel Lucent 4G LTE. I'm interested in finding if anyone can share Tektronix IrisView traffic samples of NAS EMM/ESM Failure cause codes sample files. I need to find out which devices are experiencing which types of failure cause codes and why in the network, and then finally compare between E******* and Alcatel Lucent. The list of failure cause codes associated to procedures is as follows, if any one can send any LTE traffic captures and also any experience/case studies that would be extremely helpful?

In the coming weeks I will be putting some examples together for my specific customer but i need some ideas from other networks?



Response Code Protocol
Procedure
Response Code Category
Response Code ID
Response Code Name


S1MME NAS EMM
Attach
General Failure
70000
Timeout


S1MME NAS ESM
Bearer Resource Allocation

2
IMSI unknown in HSS



Bearer Resource Modification

3
Illegal UE



Combined Attach

6
Illegal ME



Combined Tracking Area Update

7
EPS services not allowed



Dedicated EPS Bearer Context Activation
8
EPS services and non-EPS services not allowed/Operator determined barring



Default EPS Bearer Context Activation
9
UE identity cannot be derived by the network



EMM Authentication

10
Implicitly detached



EMM First Paging

11
PLMN not allowed



EMM GUTI Reallocation

12
Tracking area not allowed



EMM Identification

13
Roaming not allowed in this tracking area



EMM Paging

14
EPS services not allowed in this PLMN



EMM Security Mode Control

15
No suitable cells in tracking area



EPS Bearer Context Deactivation

16
MSC temporarily not reachable



EPS Bearer Context Modification

17
Network failure



Extended Service Request - MO Call
18
CS domain not available



Extended Service Request - MO Emergency Call
19
ESM failure



Extended Service Request - MT Call
20
MAC failure



Network Initiated Detach - IMSI Detach
21
Synch failure



Network Initiated Detach - Re-attach Not Required
22
Congestion



Network Initiated Detach - Re-attach Required
23
UE security capabilities mismatch



Normal Tracking Area Update

24
Security mode rejected, unspecified



Periodic Tracking Area Update

25
Not authorized for this CSG



Service Request

26
Insufficient resources/Non-EPS authentication unacceptable



UE Initiated Detach - Combined Detach
27
Unknown or missing access point name



UE Initiated Detach - EPS Detach

28
Unknown PDN type



UE Initiated Detach - IMSI Detach

29
User authentication failed



UE Requested PDN Connectivity - Handover
30
Request rejected by Serving GW or PDN GW



UE Requested PDN Connectivity - Initial Request
31
Request rejected, unspecified



UE Requested PDN Disconnect

32
Service option not supported





33
Requested service option not subscribed





34
Service option temporarily out of order





35
PTI already in use





37
EPS QoS not accepted





38
Network failure





39
CS domain temporarily not available





40
No EPS bearer context activated





41
Semantic error in the TFT operation





42
Syntactical error in the TFT operation





43
Invalid EPS bearer identity





44
Semantic errors in packet filter(s)





45
Syntactical error in packet filter(s)





46
EPS bearer context without TFT already activated





47
PTI mismatch





49
Last PDN disconnection not allowed





50
PDN type IPv4 only allowed





51
PDN type IPv6 only allowed





52
Single address bearers only allowed





53
ESM information not received





54
PDN connection does not exist





55
Multiple PDN connections for a given APN not allowed





56
Collision with network initiated request





59
Unsupported QCI value





81
Invalid PTI value





95
Semantically incorrect message





96
Invalid mandatory information





97
Message type non-existent or not implemented





98
Message type not compatible with protocol state





99
Information element non-existent or not implemented





100
Conditional IE error





101
Message not compatible with protocol state





111
Protocol error, unspecified





112
APN restriction value incompatible with active EPS bearer context



Hi Tyberry,

any evolution regarding 4G smartphones signaling issues?

I'm trying to focus more less on the same thing, what should be the impact of the chatty apps in a 4g environment, and what should be the best approach (what link should be monitored, S1 mme? , Sgi ? ) the load caused by this kind of apps will be mainly signalling? lot´s of questions :L

anyone would like to comment
thanks