PREVENCIÓN DE LA HIPOTENSIÓN DURANTE LA SESIÓN DE

Counter Description Condition MO Class

pmNoOfNonHoReqDeniedHs (HSDPA Interactive RAB

Number of Interactive RAB establishments

Incremented by one when admission is

Counter Description Condition MO Class Failures due to Admission Control) on a (High Speed) HS configuration rejected by admission control. rejected.

Note: The counter is not incremented when admission is rejected in a DRNC cell.

pmNoRabEstBlockNodePsInt HsBest (HS Int RAB Block - Node Congestion/Failure (Best Cell) Number of RAB establishment attempts for RAB-type PS

Interactive for HS that are blocked due to node congestion or node failure, counted on the best cell.

This counter is stepped when the establishment of a PS Interactive RAB for HS RAB fails due to node configuration error, node limitation or transport network layer service unavailability. UtranCell pmNoRabEstBlockTnPsIntHs (HS Int RAB Block - TN Congestion/Failure (Blocking cell)

Number of RAB

establishment attempts for RAB-type PS

Interactive for HS that are blocked due to TN congestion or TN failure, counted on the blocking cell.

This counter is stepped when the establishment of a PS Interactive RAB for HS, fails due to congestion on the user plane (AAL2) or control plane (UniSaal or SCTP) of the transport network layer as a result of user dimensioned transport network capacity. UtranCell pmNoRabEstBlockTnPsIntHsB est (HS Int RAB Block - TN Congestion/Failure (Best Cell)

Number of RAB

establishment attempts for RAB-type PS

Interactive for HS that are blocked due to TN congestion or TN failure, counted on the best cell.

This counter is stepped when the establishment of a PS Interactive RAB fails due to UNI-SAAL or AAl2 congestion, IP resource limitations or blocking as a result of user dimensioned transport network configured capacity. The counter is stepped for the best cell in the active set but only if the cell is in the SRNC.

UtranCell

pmNoFailedREstAttExcConnLi mit (PS RAB failures - Exceeded connection Number of failed PS RAB establishment attempts due to exceeding the Counter is stepped when admission control fails with reject reason value

Counter Description Condition MO Class

limit) configured connection limit when allocating Spreading Factor ('SF Histogram' in Admission Reject signal) SF8, SF16, or SF32. The counter is stepped for the best cell in the active set in the SRNC for both R99 & HS RABs .

To calculate the values for HSDPA RAB failures due to radio reasons, we can use the following formula

HS RAB access failures (Radio Reasons) =

(Total HS RAB access failures) –(HS RAB Setup failures)

Aadditional counters are also available to provide insight on RAB accessibility failures but these are pegged for both CS & PS RABS, hence a fair estimation is required to correlate these reasons to HS Interactive RAB access failures.

RAB Setup Failures Counters: (Pegged for CS + PS calls together)

Counter Description Condition MO

Class PmNoFailedRabEstAttemptLackDlPwr

(RAB failures - Lack of DL power)

Number of failed RAB establishment attempts due to lack of DL power

Counter is stepped when admission control fails with reject reason lack of DL power.

UtranCel l

pmNoFailedRabEstAttemptLackDlCh nlCode (RAB failures - Lack of DL Channelization code)

Number of failed RAB establishment attempts due to lack of DL channelization codes. Number of failed RAB establishment attempts due to lack of DL channelization codes. UtranCel l PmNoFailedRabEstAttemptLackDlAse (RAB failures - Lack of DL ASE)

Number of failed RAB establishment attempts due to lack of DL ASE

Counter is stepped when admission control fails with reject reason lack of DL ASE.

UtranCel l

pmNoFailedRabEstAttemptLackUlAse (RAB failures - Lack of UL

Number of failed RAB establishment Number of failed RAB establishment UtranCel l

Counter Description Condition MO Class

ASE) attempts due to lack

of UL ASE

attempts due to lack of UL ASE. pmNoFailedRabEstAttemptLackUlHw

Best (RAB failures - Lack of UL hardware resources- Best cell)

Number of failed RAB establishment attempts due to lack of UL hardware resources, for the best cell in the active set.

The counter is stepped for the IubLink containing the best cell in the active set.

UtranCel l

pmNoFailedRabEstAttemptLackDlHw Best (RAB failures - Lack of DL hardware resources- Best cell)

Number of failed RAB establishment attempts due to lack of DL hardware resources, for the best cell in the active set.

The counter is stepped for the IubLink containing the best cell in the active set.

UtranCel l

pmNoFailedRabEstAttemptLackUlHw (RAB failures - Lack of UL hardware resources)

Number of failed RAB establishment attempts due to lack of UL hardware resources.

The counter is stepped for the IubLink containing the first cell to fail admission in the active set

UtranCel l

pmNoRabEstablishFailureUeCapabilit y (RAB failures due to UE Capability) Number of failed RAB establishments due to insufficient UE capabilities When the Ue Capability check fails for the state to which it is established, the counter is incremented. UtranCel l

There 1 more counter available also which are pegged for both CS + PS calls and Setup + Radio access failures together. So, this counter can be used more for information & trending instead of troubleshooting. (already mentioned in CS RRC access failure part of this report)

RAB Failures Counter: (Pegged for CS + PS calls and Setup + Radio

Access failures together)

Counter Description Condition MO

Class pmNoFailedAfterAdm

(RRC+RAB) Failures after Admission Control