Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
Security Level:
www.huawei.com
Huawei Parameter Strategy
HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential
www.huawei.com
Contents
Traffic Share Solution
Idle Mode & Call Control
H...
HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential
Traffic Share Solution
• Recommended solutions for Traffic Balancing
I. I...
HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential
 Hierarchical strategy for GSM900 and GSM1800
The layer of GSM 1800 cell...
HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential
• Strategy for 2G/3G Interoperability
For the areas covered by both the G...
HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential
www.huawei.com
Contents
Traffic Share Solution
Idle Mode & Call Control
H...
HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential
Idle Mode
• Strategy: More subscribers stay in DCS in Idle mode
Layer Pri...
HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential
• Parameter suggested
PARAMETER PROPOSED VALUES
Abbreviated Name Paramete...
HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential
www.huawei.com
Contents
Traffic Share Solution
Idle Mode & Call Control
H...
HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential
Handover
• Huawei handover algorithm introduction
Emergency HO
MS Goes in...
HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential
Handover
Triggering
P/N
Serving Cell Neighboring
Cell
P: Watch Time (s)(s...
HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential
• Layer Handover
Layer HO is triggered when:
Neighboring cells following...
HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential
• PBGT Handover
Serving Cell Neighboring Cell
Handover
Triggering
PBGT
HO...
HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential
• Parameter suggested
PARAMETER PROPOSED VALUES
Abbreviated Name Paramete...
HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential
www.huawei.com
Contents
Traffic Share Solution
Idle Mode & Call Control
H...
HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential
2G/3G Interoperability
 Cell Reselection Flow(2G->3G)
StartStart
Inter-R...
HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential
• Parameter suggested
2G/3G Interoperability
PARAMETER
PROPOSED VALUES
Ab...
HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential
•2G to 3G handover only activate in some spots
2G/3G Interoperability
PAR...
HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential
www.huawei.com
Contents
Traffic Share Solution
Idle Mode & Call Control
H...
HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential
PowerControl
• Huawei III Power Control
step1(k)= -1* (SF1*(ca_filtered(k...
HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential
PowerControl
• Parameter suggested
Parameter Name (UL)
PROPOSED
VALUES
Pa...
Thank you
www.huawei.com
Upcoming SlideShare
Loading in …5
×

Huawei parameter strategy v1.4 1st dec

Parameter related to Traffic Share Solution (Traffic Balancing) , Idle Mode & Call Control, handover, 2G/3G interoperability, power control

  • Be the first to comment

Huawei parameter strategy v1.4 1st dec

  1. 1. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Security Level: www.huawei.com Huawei Parameter Strategy
  2. 2. HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential www.huawei.com Contents Traffic Share Solution Idle Mode & Call Control Handover 2G/3G Interoperability Power Control
  3. 3. HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential Traffic Share Solution • Recommended solutions for Traffic Balancing I. In case of GSM900 and DCS1800 co-location, the GSM900 has strong signal strength but we can use the idle parameter setting and handover to control the traffic and achieve the balanced traffic between GSM900 and DCS1800 II. In case of 2G and 3G co-location, we can use the idle parameter setting and handover to control the traffic and achieve the balanced traffic between 2G and 3G a. Set proper cell selection and reselection parameters b. Utilize proper cell layer settings and other handover parameters c. Control idle mode MS behavior, optimize handover settings to achieve proper traffic load sharing d. other
  4. 4. HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential  Hierarchical strategy for GSM900 and GSM1800 The layer of GSM 1800 cell is higher than the layer of GSM 900 cell. ① In idle mode, the MS stay in the GSM 900 cell B by setting the cell selecting or cell reselecting parameters. ② When the DL signal level is good enough to reach the threshold, the MS is triggered the Layer HO to GSM 1800 cell B. ③-1 Because the moving of Ms, the UL/DL signal level become worse. When UL/DL RxLevel is lower than the threshold, the MS is triggered Edge HO to GSM 900 cell B. ③-2 In oder to avoiding congestion of GSM 1800 cell, the Load HO can be used to share some traffic to GSM 900 cell. Cell B GSM 900 【 Inter-layer HO threshold 】 +64- 【 Inter-layer HO hysteresis 】 【 Edge HO Threshold 】 Cell A GSM 1800 ① Cell select/ cell reselect ②Layer HO ③ Edge HO/Load HO The MS in this zone are difficult to be triggered handover from GSM 1800 cell to GSM 900 cell. Traffic Share Solution
  5. 5. HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential • Strategy for 2G/3G Interoperability For the areas covered by both the GSM network and the UMTS network,2G/3G interoperability can be performed to achieve traffic balance between the GSM and UMTS. I.Only suggest to active the cell reselection from 2G to 3G. II.Both cell reselection and handover are suggested from 3G to 2G. a.Cell reselection from 3G to 2G only when the UE leave 3G coverage. b.UE will trigger cell reselection from 2G to 3G once it go back to 3G coverage. 2G Coverage 3G/2G Coverage ① ② Traffic Share Solution
  6. 6. HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential www.huawei.com Contents Traffic Share Solution Idle Mode & Call Control Handover 2G/3G Interoperability Power Control
  7. 7. HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential Idle Mode • Strategy: More subscribers stay in DCS in Idle mode Layer Priority: ID=OD>MD>MG GSM1800 GSM1800GSM1800 GSM900 Cell Micro Cell Layer 3 Layer 2 GSM 900 GSM 900 GSM 900 GSM1800 GSM1800 GSM1800 GSM1800 GSM1800 Cell Layer 1 In-Building Cell
  8. 8. HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential • Parameter suggested PARAMETER PROPOSED VALUES Abbreviated Name Parameter Name MG MD ID OD MAX TA(bit period(1 bit=0.55km)) Actual distance between MS & BTS 62 33 2 Repeater site value TBD 4 Repeater site value TBD RXLEV_ACCESS_MIN RxLevel Acces Min Rural,5 Suburban 5 Others 8 (follow existing value) 15 (follow existing value) 15 (follow existing value) 20 Radio Link Timeout (FR & EFR) RLT 32 28 36 28 Radio Link Timeout (AMR FR) AFRDSBLCNT 48 48 48 48 Layer of the Cell Layer of the Cell 3 2 1 1 Cell Priority Cell Priority 1 1 1 1 CRO Cell Reselection Offset 0 (0dB) 12 (24dB) 18(36dB) 15 (30dB) TO Temporary Offset 0 (0dB) 0 (0dB) 4 (40dB) 4 (40dB) PT Penalty Time 0 (20 second) 0 (20 second) 1 (40 second) 0 (20 second) CRH Cell Reselection Hysteresis 14 dB 14 dB 14 dB 14 dB BS_AG_BLKS_RES Number of CCCH blocks reserved for the AGCH 1 1 1 1 BS-PA-MFRAMS Number of multi-frames in a cycle on the paging channel 2 Multiframe Period 2 Multiframe Period 2 Multiframe Period 2 Multiframe Period FMSMAXOPCC MS_TXPWR_MAX_CCH 5 0 0 0 Idle Mode & Call Control
  9. 9. HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential www.huawei.com Contents Traffic Share Solution Idle Mode & Call Control Handover 2G/3G Interoperability Power Control
  10. 10. HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential Handover • Huawei handover algorithm introduction Emergency HO MS Goes into New Dedicated Mode MS Goes into Dedicated Mode Measurement Report processing1 Handover Judgment2 Handover Implementation if necessary 3 TA HO Interference HO Bad Quality HO Load HO Edge HO Layer HO PBGT HO AMR HO No DL MR HO Penalty Processing Ranking Processing Normal HO
  11. 11. HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential Handover Triggering P/N Serving Cell Neighboring Cell P: Watch Time (s)(s) N: Valid Time (s) RX_LEV Thr Time RX_Lev • Edge Handover UL/DL Edge HO is triggered when: Serving cell: Rxlev < Edge HO Threshold following P/N rules Neighboring cells following P/N rules with: 16 bits values lower than serving cell DL_Rx_Lev(n)> DL_Rx_Lev(s)+[Inter-cell HO Hysteresis](s->n) Candidate cell exists and available Handover
  12. 12. HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential • Layer Handover Layer HO is triggered when: Neighboring cells following P/N rules with: 16 bits values lower than serving cell RX_LEV (n)>= [Inter-layer HO threshold] (n) + [Inter-layer HO hysteresis] (s->n) Layer & level (n)<Layer & level (s) Candidate cell exists and available Handover
  13. 13. HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential • PBGT Handover Serving Cell Neighboring Cell Handover Triggering PBGT HO Threshold Time Path Loss (dB) 126dB 119dB 5 126- 119=7dB>5dB P/N P: Watch Time N: Valid Time PBGT HO is triggered when: Path loss (s) – Path loss (n) > PBGT HO Margin (s->n) and 16bits(n) < 16bits (s) following P/N rules Layer & level (n) = Layer & level (s) Candidate cell exists and available Handover
  14. 14. HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential • Parameter suggested PARAMETER PROPOSED VALUES Abbreviated Name Parameter Name MG MD ID OD Edge HO UL RX_LEV Threshold Edge HO uplink RX Level threshold -98 dBm -94 dBm -94 dBm -94 dBm Edge HO DL RX_LEV Threshold Edge HO downlink RX Level threshold -94 dBm -90 dBm -90 dBm -90 dBm Inter-layer HO Threshold Inter-layer HO Threshold -75 dBm -85 dBm -85 dBm -85 dBm Inter-layer HO Hysteresis Inter-layer HO Hysteresis 2dB 2dB 2dB 2dB PBGTMARGIN PBGT HO Margin 68 68 68 68 DLQUALIMIT DL Qual. Threshold 60 60 60 60 ULQUALIMIT UL Qual. Threshold 55 55 55 55 TALIMIT TA Threshold 62 33 2 4 Handover
  15. 15. HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential www.huawei.com Contents Traffic Share Solution Idle Mode & Call Control Handover 2G/3G Interoperability Power Control
  16. 16. HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential 2G/3G Interoperability  Cell Reselection Flow(2G->3G) StartStart Inter-RAT Cell Reselection Enable=YesInter-RAT Cell Reselection Enable=Yes Ec/No>FDD_Qmin &last more than 5sEc/No>FDD_Qmin &last more than 5s 1 .RSCP > RLA_C+ FDD_Q_offset 2. Ec/NO > FDD_Q_min – FDD_Qmin_Offset 3. RSCP > FDD_RSCP_MIN Above conditions are met for five consecutive seconds 1 .RSCP > RLA_C+ FDD_Q_offset 2. Ec/NO > FDD_Q_min – FDD_Qmin_Offset 3. RSCP > FDD_RSCP_MIN Above conditions are met for five consecutive seconds RLA_C>level threshold for searching 3G cellRLA_C>level threshold for searching 3G cell EndEnd
  17. 17. HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential • Parameter suggested 2G/3G Interoperability PARAMETER PROPOSED VALUES Abbreviated Name Parameter Name INTERRATOUTBSCHOEN Inter-RAT Out BSC Handover Enable No INTERRATCELLRESELEN Inter-RAT Cell Reselection Enable Yes INTERRATINBSCHOEN Inter-RAT In BSC Handover Enable Yes CELLSELECTAFTERCALLREL Select 3G Cell After Call Release Yes FDDQOFF FDD Q Offset 0 (always select a cell if acceptable) FDDQMIN FDD Qmin 7 (-12 dB) FDDQMINOFFSET FDD Qmin Offset 0 (0 dB) FDDRSCPMIN FDD RSCP Min. -102 dBm QI Qsearch I 7 (always) QP QsearchP 7 (always) QCI Qsearch C Initial Use_Qsearch_I QSEARCHC Qsearch C 7 (always)
  18. 18. HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential •2G to 3G handover only activate in some spots 2G/3G Interoperability PARAMETER PROPOSED VALUES Abbreviated Name Parameter Name INTERRATOUTBSCHOEN Inter-RAT Out BSC Handover Enable Yes BET3GHOEN Better 3G Cell HO Allowed Yes HOOPTSEL Inter-rat Ho Preference Pre_3G_Cell HOPRETH2G HO Preference Threshold for 2G Cell -85 dBm HORSCPTH3G RSCP Threshold for Better 3G Cell HO -75 dBm HOECNOTH3G Ec/no Threshold for Better 3g Cell HO -7 dB MINRSCPTHRES Min RSCP threshold -90 dBm MINECNOTHRES Min Ec/No threshold - 9.5 dB HOSTAT3G 3G Better Cell HO Watch Time 5 seconds HODURT3G 3G Better Cell HO Valid Time 4 seconds QCI Qsearch C Initial Use_Qsearch_I QSEARCHC Qsearch C 7 (always) FDDREP FDD REP QUANT Dense Urban & Urban: Ec/No Suburban & Rural: RSCP
  19. 19. HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential www.huawei.com Contents Traffic Share Solution Idle Mode & Call Control Handover 2G/3G Interoperability Power Control
  20. 20. HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential PowerControl • Huawei III Power Control step1(k)= -1* (SF1*(ca_filtered(k)-STarget)+QF1*( qa_filtered(k)-QTarget)) step2(k)= -1* (SF2*(ca_filtered(k)- STarget)+QF2*( qa_filtered(k)-QTarget)) step(k)=max(step1(k) , step2(k) ) SF1: Rx Level Adjust Factor QF1: Rx Qual Adjust Factor SF2: Rx Level Protect Factor QF2: Rx Qual Protect Factor STarget =(SThrUp+ SThrDown)/2 QTarget =(QThrUp+ QThrDown)/2 Step Calculation:
  21. 21. HUAWEITECHNOLOGIES CO., LTD. Huawei Confidential PowerControl • Parameter suggested Parameter Name (UL) PROPOSED VALUES Parameter Name (DL) PROPOSED VALUES ULRexLevHighThred 18 (Rxlev > -92dBm) DLRexLevHighThred 25 (Rxlev > -85dBm) ULRexLevLowThred 18 (Rxlev < -92dBm) DLRexLevLowthred 25 (Rxlev < -85dBm) ULFSRexQualHighThred 16 (C/I >16dB) DLFSRexQualHighThred 16 (C/I >16dB) ULFSRexQualLowThred 16 (C/I <16dB) DLFSRexQualLowThred 16 (C/I <16dB) ULHSRexQualHighThred 18 (C/I >18dB) DLHSRexQualHighThred 18 (C/I >18dB) ULHSRexQualLowThred 18 (C/I <18dB) DLHSRexQualLowThred 18 (C/I <18dB) ULAFSRexQualHighThred 14 (C/I >14dB) DLAFSRexQualHighThred 14 (C/I >14dB) ULAFSRexQualLowThred 14 (C/I <14dB) DLAFSRexQualLowThred 14 (C/I <14dB) ULAHSRexQualHighThred 16 (C/I >16dB) DLAHSRexQualHighThred 16 (C/I >16dB) ULAHSRexQualLowThred 16 (C/I <16dB) DLAHSRexQualLowThred 16 (C/I <16dB) ULMAXDOWNSTEP 6 dB DLMAXDOWNSTEP 4 dB ULMAXUPSTEP 8 dB DLMAXUPSTEP 8 dB ULREXLEVADJFCTR 3 DLREXLEVADJFCTR 3 ULREXQUALADJFCTR 4 DLREXQUALADJFCTR 4 DLRXLEVPROTECTFACTOR 10 ULRXLEVPROTECTFACTOR 10 DLRXQUALPROTECTFACTOR 60 ULRXQUALPROTECTFACTOR 60
  22. 22. Thank you www.huawei.com

×