06 2G to 3G Cell Reselection Strategy
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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 1 Key Technology--Three Thresholds for Cell Reselection Cell reselection Start threshold Minimum threshold Relative threshold Indicates the signal quality of the current stay cell is lower the threshold Indicates the signal quality of the target cell is higher than the threshold The signal strength of the target cell –signal strength of the current stage cell >the relative threshold.
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06 2G to 3G Cell Reselection Strategy
Transcript of 06 2G to 3G Cell Reselection Strategy
1Huawei Confidential
Slide title :32-35pt Color: R153 G0 B0 Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial Slide text :20-22pt Bullets level 2-5: 18pt Color:Black Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial
Top right corner for field-mark, customer or partner logotypes. ----------------
The following nine groups of colors are an example of how our design colors can be used, please take note that you should only use one design color group per slide. For specific usage details, refer to the “Typesetting Standard”.
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Cell reselection
Start threshold
Minimum threshold
Relative threshold
Indicates the signal quality of the current stay cell is lower the threshold
Indicates the signal quality of the target cell is higher than the threshold
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Huawei Confidential
Slide title :32-35pt Color: R153 G0 B0 Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial Slide text :20-22pt Bullets level 2-5: 18pt Color:Black Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial
Top right corner for field-mark, customer or partner logotypes. ----------------
The following nine groups of colors are an example of how our design colors can be used, please take note that you should only use one design color group per slide. For specific usage details, refer to the “Typesetting Standard”.
Page *
2G
3G
Minimum threshold
Start threshold
Relative threshold
In the 3G preferred strategy, the “start threshold” cannot be restricted. But the 2G cell signal is strong. Therefore, it is impossible to require the 3G cell signal is better than the 2G signal cell, thereby failing to restricted the “relative threshold”. Since the selected 3G cell must meet the requirements for “minimum threshold”, the correct way is to configure the proper “minimum threshold”.
Principle of “minimum threshold” preference
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Huawei Confidential
Slide title :32-35pt Color: R153 G0 B0 Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial Slide text :20-22pt Bullets level 2-5: 18pt Color:Black Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial
Top right corner for field-mark, customer or partner logotypes. ----------------
The following nine groups of colors are an example of how our design colors can be used, please take note that you should only use one design color group per slide. For specific usage details, refer to the “Typesetting Standard”.
Page *
2G to 3G CS&PS is mainly use Cell Reselection:
Qsearch I, Qsearch_P, Qsearch C :
Set as 7, so MS can always search the 3G cells
FDD Q Offset:
Set as 0, so MS can always select a cell if acceptable
FDD Qmin:(Minimum threshold)
Set as 7, can be optimized to balance traffic and avoid PS Pingpong Reselection
Notes:
FDD_Qmin’s value range is modified since Sep. 2003 based on CR GP-032221 as: 0= -20dB, 1= -6dB, 2= -18dB, 3= -8dB, 4= -16dB, 5= -10dB, 6= -14dB, 7= -12dB.
HUAWEI TECHNOLOGIES CO., LTD.
Huawei Confidential
Slide title :32-35pt Color: R153 G0 B0 Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial Slide text :20-22pt Bullets level 2-5: 18pt Color:Black Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial
Top right corner for field-mark, customer or partner logotypes. ----------------
The following nine groups of colors are an example of how our design colors can be used, please take note that you should only use one design color group per slide. For specific usage details, refer to the “Typesetting Standard”.
setting
Page *
Huawei Confidential
Slide title :32-35pt Color: R153 G0 B0 Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial Slide text :20-22pt Bullets level 2-5: 18pt Color:Black Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial
Top right corner for field-mark, customer or partner logotypes. ----------------
The following nine groups of colors are an example of how our design colors can be used, please take note that you should only use one design color group per slide. For specific usage details, refer to the “Typesetting Standard”.
Page *
Outgoing-RAT HO Allowed must set Yes
Better 3G Cell HO Allowed set Yes
RSCP Threshold for Better 3G CELL HO
Ec/No Threshold for Better 3G CELL HO
3G Better Cell HO Watch Time(s)
3G Better Cell HO Valid Time(s)
2G to 3G Handover should use “Better 3G Cell HO “ , especially 2G&3G are built Co-site, for 3G cells will be rank lower position than 2G cells
Should be adjust by cell’s different condition
Slide title :32-35pt Color: R153 G0 B0 Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial Slide text :20-22pt Bullets level 2-5: 18pt Color:Black Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial
Top right corner for field-mark, customer or partner logotypes. ----------------
The following nine groups of colors are an example of how our design colors can be used, please take note that you should only use one design color group per slide. For specific usage details, refer to the “Typesetting Standard”.
Page *
Cell reselection
Start threshold
Minimum threshold
Relative threshold
Indicates the signal quality of the current stay cell is lower the threshold
Indicates the signal quality of the target cell is higher than the threshold
*
Huawei Confidential
Slide title :32-35pt Color: R153 G0 B0 Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial Slide text :20-22pt Bullets level 2-5: 18pt Color:Black Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial
Top right corner for field-mark, customer or partner logotypes. ----------------
The following nine groups of colors are an example of how our design colors can be used, please take note that you should only use one design color group per slide. For specific usage details, refer to the “Typesetting Standard”.
Page *
2G
3G
Minimum threshold
Start threshold
Relative threshold
In the 3G preferred strategy, the “start threshold” cannot be restricted. But the 2G cell signal is strong. Therefore, it is impossible to require the 3G cell signal is better than the 2G signal cell, thereby failing to restricted the “relative threshold”. Since the selected 3G cell must meet the requirements for “minimum threshold”, the correct way is to configure the proper “minimum threshold”.
Principle of “minimum threshold” preference
*
Huawei Confidential
Slide title :32-35pt Color: R153 G0 B0 Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial Slide text :20-22pt Bullets level 2-5: 18pt Color:Black Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial
Top right corner for field-mark, customer or partner logotypes. ----------------
The following nine groups of colors are an example of how our design colors can be used, please take note that you should only use one design color group per slide. For specific usage details, refer to the “Typesetting Standard”.
Page *
2G to 3G CS&PS is mainly use Cell Reselection:
Qsearch I, Qsearch_P, Qsearch C :
Set as 7, so MS can always search the 3G cells
FDD Q Offset:
Set as 0, so MS can always select a cell if acceptable
FDD Qmin:(Minimum threshold)
Set as 7, can be optimized to balance traffic and avoid PS Pingpong Reselection
Notes:
FDD_Qmin’s value range is modified since Sep. 2003 based on CR GP-032221 as: 0= -20dB, 1= -6dB, 2= -18dB, 3= -8dB, 4= -16dB, 5= -10dB, 6= -14dB, 7= -12dB.
HUAWEI TECHNOLOGIES CO., LTD.
Huawei Confidential
Slide title :32-35pt Color: R153 G0 B0 Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial Slide text :20-22pt Bullets level 2-5: 18pt Color:Black Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial
Top right corner for field-mark, customer or partner logotypes. ----------------
The following nine groups of colors are an example of how our design colors can be used, please take note that you should only use one design color group per slide. For specific usage details, refer to the “Typesetting Standard”.
setting
Page *
Huawei Confidential
Slide title :32-35pt Color: R153 G0 B0 Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial Slide text :20-22pt Bullets level 2-5: 18pt Color:Black Corporate Font : FrutigerNext LT Medium Font to be used by customers and partners : Arial
Top right corner for field-mark, customer or partner logotypes. ----------------
The following nine groups of colors are an example of how our design colors can be used, please take note that you should only use one design color group per slide. For specific usage details, refer to the “Typesetting Standard”.
Page *
Outgoing-RAT HO Allowed must set Yes
Better 3G Cell HO Allowed set Yes
RSCP Threshold for Better 3G CELL HO
Ec/No Threshold for Better 3G CELL HO
3G Better Cell HO Watch Time(s)
3G Better Cell HO Valid Time(s)
2G to 3G Handover should use “Better 3G Cell HO “ , especially 2G&3G are built Co-site, for 3G cells will be rank lower position than 2G cells
Should be adjust by cell’s different condition
