Generic selectors
Exact matches only
Search in title
Search in content
Search in posts
Search in pages

HO

Viewing 8 posts - 1 through 8 (of 8 total)
  • Author
    Posts
  • #53730 Reply
    MKT
    Guest

    Hi,

    With regard to intra cell HO….

    If the cause of triggering is UL or DL RxQual then, do we have the choice to enable/disable the same? I mean the intracell handovers due to RXQUAL are by default or by choice?

    Regards.

    #53731 Reply
    pix
    Guest

    intracell ho can be disabled.
    the main causes for intracell ho are called “interference”, when RXLEV is good but RXQUAL is bad.
    there is a type of handover, an intercell HO, called “bad quality”, which is based on conditions RXLEV is bad AND RXQUAL is bad.

    I’m not sure i understand your question though, but maybe that helped ?

    #53732 Reply
    MKT
    Guest

    Thanks for reply,

    my vendor is Nokia

    In the handover control parameters of a particular cell we have,

    Intra HO due to UL interference = No

    Intra HO due to DL interference = No

    I wonders if the intra cell handover due to interference is not allowed then
    how it is happening due to Rxqual(which is nothing but the child of interference).

    That is why I asked whether Intracell HO due RXQUAL are by default or can be by choice.

    Regards

    #53733 Reply
    RH
    Guest

    Hi MKT,
    For HO,RxQual has the more priority then Interference.
    Network will set the HO cause as follow:
    rx_qual HO allowed? -> check rx_qual thresold ->interference_HO allowed?(if yes,then it will check for intracell_ho threshold,if rxlev greater then the threshold then ıntracell ho will occur.otherwise not and HO cause should be rx_qual)..(if interference_HO not allowed..then set the cause Rx_qual and intercell HO will occur).

    So its amazing that ur interference ho are disabled but they are occurring.

    #53734 Reply
    pix
    Guest

    i think MKT is confusing interference HO and quality HO. They are different species of HO.
    interf HO based on high rxlev and poor rxqual
    qual HO based on low rxlev and poor rxqual

    you see, they are working together, additionally.

    #53735 Reply
    MKT
    Guest

    Hi, Pix and RH

    I am not saying that Intracell Handovers are occurring in the cell even though the same feature is disabled.
    what i am saying is that in my cell i have intracell handovers due to interfernce are disabled, yet the intracell handovers due to Rxqual are occurring.

    I am of the impression that interference leads to BER and hence bad Rxqual. Then how it is possible anything which depends on interference is enabled or working while the root itself(interference ) is disabled.

    Any way here is the HO parameters of the cell I am referring .

    It may be the case i am not decoding the execution printout properly.

    Regards
    ENABLE INTRA HO INTERF UL …… N ENABLE INTRA HO INTERF DL …… N
    ENABLE PWRBUDGET HANDOVER …… Y ENABLE MS DISTANCE PROCESS ….. N
    ENABLE SDCCH HANDOVER ………. N ENABLE UMBRELLA HANDOVER ……. N
    ENABLE FAST AVE CALL SETUP ….. N ENABLE FAST AVE PC …………. N
    ENABLE FAST AVE HO …………. N

    MIN INT BETWEEN HO REQ …………. 05 s HO PERIOD UMBRELLA ……. 06
    MIN INT BETWEEN UNSUCC HO ATTEMPT .. 03 s HO PERIOD PBGT ……….. 06

    GSM PLMN PRIORISATION ………….. 0

    AMH TRAFFIC CONTROL MCN …….. N AMH TRAFFIC CONTROL IUO …….. N
    AMH TRHO PBGT MARGIN ……….. N

    AVERAGING WINDOW SIZE ADJ CELL ….. 06 NUMBER OF ZERO RESULTS … 2
    ALL ADJACENT CELLS AVERAGED …….. N

    THRESHOLD FOR MULTI-RAT MS ………………… never
    MIN TRAFFIC LOAD FOR SPEECH CALL …………… 80 %
    NUMBER OF MEASURED FDD CELLS ………………. 02
    MIN INTERVAL BETWEEN UNSUCC ISHO ATTEMP …….. 03 s
    ADJACENT WCDMA RAN CELL AVERAGING WINDOW SIZE .. 06
    NUMBER OF WCDMA RAN ZERO RESULTS …………… 05
    ALL ADJACENT WCDMA RAN CELLS AVERAGED ………. N
    INTER-SYSTEM DIRECT ACCESS LOAD THRESHOLD …… 50
    INTER-SYSTEM DIRECT ACCESS ENABLED …………. N
    TRIGGERING RATIO FOR WCDMA RAN CELL PENALTY …. 50
    WCDMA RAN CELL PENALTY ……………………. 127

    REPORTING RATE …………………………… 0
    INVALID BSIC REPORTING ……………………. 0
    SERVING BAND REPORTING ……………………. 2
    800 REPORTING OFFSET ……………………… 00 dB
    900 REPORTING OFFSET ……………………… 00 dB
    1800 REPORTING OFFSET …………………….. 00 dB
    1900 REPORTING OFFSET …………………….. 00 dB
    FDD REPORTING OFFSET ……………………… 00 dB
    800 REPORTING THRESHOLD …………………… ALWAYS
    900 REPORTING THRESHOLD …………………… ALWAYS
    1800 REPORTING THRESHOLD ………………….. ALWAYS
    1900 REPORTING THRESHOLD ………………….. ALWAYS
    FDD REPORTING THRESHOLD …………………… ALWAYS

    HO AVERAGING LEV DL WINDOW SIZE ………… 06 WEIGHTING …. 1
    HO AVERAGING LEV UL WINDOW SIZE ………… 06 WEIGHTING …. 1
    HO AVERAGING QUAL DL WINDOW SIZE ………… 01 WEIGHTING …. 1
    HO AVERAGING QUAL UL WINDOW SIZE ………… 01 WEIGHTING …. 1

    MS SPEED AVERAGING …………. 04

    HO THRESHOLDS QUAL DL RX QUAL …… 1.6% – 3.2% PX .. 04 NX .. 06
    HO THRESHOLDS QUAL UL RX QUAL …… 1.6% – 3.2% PX .. 04 NX .. 06

    HO THRESHOLDS LEV DL RX LEVEL ………… -095 dBm PX .. 01 NX .. 01
    HO THRESHOLDS LEV UL RX LEVEL ………… -095 dBm PX .. 01 NX .. 01
    HO THRESHOLDS LEV UL FOR RAPID FIELD DROP . -110 dBm PX .. 00 (DISABLED)
    ENABLE ENHANCED RAPID FIELD DROP ……….. DIS (DISABLED)
    THRESHOLD DEEP DROPPING EDGE …………… 10 dB PX .. 02 NX .. 03
    DEEP DROPPING EDGE MONITORING WINDOW ……. 2
    MODIFIED AVERAGING WINDOW ……………… 2
    MODIFIED NUMBER OF ZERO RESULTS ………… 1
    ENHANCED RAPID FIELD DROP DURATION ……… 10 s
    NON BCCH LAYER ACCESS THRESHOLD ………… -090 dBm
    NON BCCH LAYER EXIT THRESHOLD ………….. -095 dBm PX .. 01 NX .. 01

    HO THRESHOLDS INTERFERENCE DL RX LEVEL ….. -085 dBm PX .. 01 NX .. 01
    HO THRESHOLDS INTERFERENCE UL RX LEVEL ….. -085 dBm PX .. 01 NX .. 01

    MS DISTANCE AVERAGING PARAM WINDOW SIZE ….. 10
    MS DISTANCE HO THRESHOLD PARAM MS RANGE MAX …. 63 PX .. 01 NX .. 01
    MS DISTANCE HO THRESHOLD EXT. CELL MAX ……… 63
    MS DISTANCE HO THRESHOLD EXT. CELL MIN ……… 02

    USED C/I ESTIMATION METHOD …… NONE (ESTIMATION METHODS NOT IN USE)

    LOWER C/I LIMIT 1 … 30 dB PRIORITY ADJ. STEP FOR BAND 1 … 3
    LOWER C/I LIMIT 2 … 25 dB PRIORITY ADJ. STEP FOR BAND 2 … 1
    LOWER C/I LIMIT 3 … 20 dB PRIORITY ADJ. STEP FOR BAND 3 … 0
    LOWER C/I LIMIT 4 … 17 dB PRIORITY ADJ. STEP FOR BAND 4 … – 1
    LOWER C/I LIMIT 5 … 13 dB PRIORITY ADJ. STEP FOR BAND 5 … – 2
    LOWER C/I LIMIT 6 … 9 dB PRIORITY ADJ. STEP FOR BAND 6 … – 5
    PRIORITY ADJ. STEP FOR BAND 7 … – 8

    SUPER REUSE ESTIMATION METHOD …………. NONE (METH. NOT USED IN THIS CELL)
    ENABLE INTER FRT HANDOVER …………….. DIS (DISABLED)
    INTERFERING CELL AVERAGING WINDOW SIZE …. 10
    INTERFERING CELL NUMBER OF ZERO RESULTS … 2
    ALL INTERFERING CELLS AVERAGED ………… N
    SUPER REUSE GOOD C/I THRESHOLD ………… 17 dB PX .. 08 NX .. 10
    SUPER REUSE BAD C/I THRESHOLD ………… 10 dB PX .. 02 NX .. 06
    MINIMUM BSIC DECODE TIME ……………… 10
    ENABLE TCH ASS SUPER IUO ……………… 0
    MINIMUM INTERVAL BETWEEN UNSUCC IUO HO …. 20 s
    MINIMUM INTERVAL BETWEEN IUO HO REQ BQ …. 10 s
    SUPER REUSE GOOD THRESHOLD RX LEVEL ……. -080 dBm PX .. 08 NX .. 10
    SUPER REUSE BAD THRESHOLD RX LEVEL …….. -085 dBm PX .. 02 NX .. 06

    LOWER SPEED LIMIT ……………………. 0 ( 0 km/h )
    UPPER SPEED LIMIT ……………………. 0 ( 0 km/h )
    MS SPEED THRESHOLD PX ……… 3 MS SPEED THRESHOLD NX ……… 6
    MS SPEED DETECTION STATE ……………… 0

    THRESHOLD DL RX QUAL AMR FR …………… 1.6% – 3.2%
    THRESHOLD UL RX QUAL AMR FR …………… 1.6% – 3.2%
    INTRA HO THRESHOLD RX QUAL AMR FR ……… < 0.2% THRESHOLD DL RX QUAL AMR HR ............... 1.6% - 3.2% THRESHOLD UL RX QUAL AMR HR ............... 1.6% - 3.2% INTRA HO THRESHOLD RX QUAL AMR HR ......... 1.6% - 3.2% SUPER REUSE GOOD C/I THRESHOLD AMR FR ..... 17 dB SUPER REUSE BAD C/I THRESHOLD AMR FR ..... 10 dB SUPER REUSE GOOD C/I THRESHOLD AMR HR ..... 17 dB SUPER REUSE BAD C/I THRESHOLD AMR HR ..... 10 dB

    #53736 Reply
    RH
    Guest

    Hi,..does in ur system the parameter ENABLE INTRA HO INTERF UL …… N ENABLE INTRA HO INTERF DL …… N
    means the intracell HO disabled? or only the intracell ho due to interference is disabled?
    In Our system,we have 2 separaet parameter..1)intracell_ho_allowed 2)interference_ho_allowed
    Ok. if for ur system if it means that intracell ho due to only interference is disabled but intracell_ho allowed…then i guess if the serving cell have rxlevel greater then -85 dBm (as set in ur threshold)then intracell HO due to quality can happen.

    #53737 Reply
    Mgcini Dube-Johnstone
    Guest

    what do the lines below refer to:
    1.inter-system direct access
    2.adjacent wcdma ran cell averaged

Viewing 8 posts - 1 through 8 (of 8 total)
Reply To: HO
Your information:




<a href="" title="" rel="" target=""> <blockquote cite=""> <code> <pre class=""> <em> <strong> <del datetime="" cite=""> <ins datetime="" cite=""> <ul> <ol start=""> <li> <img src="" border="" alt="" height="" width="">