BSS Description B10 (3FL10473A-ed 2)

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1. Evolium BSS Introduction Cell Environments ALCATEL BSS Description 38 Example of multiband hierarchical network EVOLIUM ALCATEL BSS Description All Rights Reserved © Alcatel-Lucent 2008 In much denser traffic areas, depending on the required traffic capacity, a hierarchical network is used, where continuous coverage is provided by an umbrella cell (macrocell), and traffic hot-spots are covered with dedicated lower layer cells of limited range. Fast moving mobiles are kept in the upper layer cell to avoid a high rate of handovers. For medium density areas small macrocells (called mini cells) are overlaid with one umbrella macrocell For higher traffic densities microcells are installed in all the streets where very dense traffic occurs. Umbrella macrocells provide continuous coverage for level and quality handovers, and saturated overlaid cells. All Rights Reserved © 2007, Alcatel-Lucent 3FL10473ADAAWBZZA Edition 02 EVOLIUM ALCATEL BSS Description Page 38
1. Evolium BSS Introduction Cell Environments ALCATEL BSS Description 39 Example of Handover EVOLIUM ALCATEL BSS Description All Rights Reserved © Alcatel-Lucent 2008 Handover occurs more frequently in a microcell environment due to the small radius sizes. Microcell handovers occur: To handle stationary MSs (especially MSs used indoors). When an MS moves in a street covered by microcells. To avoid loosing calls. Whenever there is a risk of loosing a call, a handover is triggered to the umbrella cell. Fast moving mobiles are handled by the umbrella cell. A mobile handled by a microcell is sent to the umbrella cell if the delay between handovers becomes too small. Conversely a mobile is sent to a microcell if it receives a high level of signal for a sufficient time. Call quality/control is achieved by providing four thresholds for microcell handover and one handover threshold for macrocell handover. Microcell to microcell handover occurs due to the proximity of the two cells. When the power budget is better in another cell, the MS is handed over to the cell which will serve the call more efficiently. This normally occurs in microcells serving in the same street. All Rights Reserved © 2007, Alcatel-Lucent 3FL10473ADAAWBZZA Edition 02 EVOLIUM ALCATEL BSS Description Page 39
Page 1 and 2: Do not delete this graphic elements
Page 3 and 4: Table of Contents ALCATEL BSS Descr
Page 5 and 6: Course Objectives ALCATEL BSS Descr
Page 7 and 8: About this Student Guide ALCATEL BS
Page 9 and 10: Self-Assessment of Objectives ALCAT
Page 11 and 12: ALCATEL BSS Description 11 1 Evoliu
Page 13 and 14: 1. Evolium BSS Introduction Situati
Page 23 and 24: 1. Evolium BSS Introduction Archite
Page 29 and 30: 1. Evolium BSS Introduction Telecom
Page 31 and 32: 1. Evolium BSS Introduction Operati
Page 33 and 34: 1. Evolium BSS Introduction Cell En
Page 35 and 36: 1. Evolium BSS Introduction Cell En
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Page 41 and 42: Self-Assessment on the Objectives A
Page 43 and 44: 2. BSC Description Section Presenta
Page 45 and 46: 2. BSC Description Situation and Fe
Page 47 and 48: 2. BSC Description Functions ALCATE
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Page 57 and 58: 2. BSC Description BSC 9130 Descrip
Page 65 and 66: Self-Assessment on the Objectives A
Page 67 and 68: 3. Transcoder Description Section P
Page 69 and 70: 3. Transcoder Description Situation
Page 71 and 72: 3. Transcoder Description Functions
Page 73 and 74: 3. Transcoder Description Hardware
Page 75 and 76: Answer the Questions ALCATEL BSS De
Page 77 and 78: ALCATEL BSS Description 77 4. Base
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4. BTS Description Evolium ANTENNA
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4. BTS Description Evolium A9100 MB
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4. BTS Description Evolium A9100 MB
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4. BTS Description Evolium A9110-E
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4. BTS Description Evolium A9110-E
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Self-Assessment on the Objectives A
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5. MFS Description Section Presenta
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5. MFS Description Situation and Fe
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5. MFS Description Functions ALCATE
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2. MFS Description MFS types ALCATE
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5. MFS 9135 Description MFS 9135 Co
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5. MFS 9130 Description MFS 9130 De
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Self-Assessment on the Objectives A
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6. BSS Interfaces Description Secti
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6. BSS Interfaces Description Inter
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6. BSS Interfaces Interface Present
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6. BSS Interfaces Description A, At
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6. BSS Interfaces Description A, At
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6. BSS Interfaces Description Abis
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Answer the Questions ALCATEL BSS De
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ALCATEL BSS Description 145 7. Oper
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7. O&M Principles Operation and Mai
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7. O&M Principles BSS O&M Terminal
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7. O&M Principles OMC-R Architectur
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Answer the Questions ALCATEL BSS De
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ALCATEL BSS Description 161 Annexes
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Annexes Annex A: GPRS Definition AL
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Annexes Annex A: GPRS Definition AL
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Annexes Annex B: Evolium BTS and Ev
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Annexes Annex C: NEW B10 FEATURES A
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Annexes Annex C: NEW B10 FEATURES A
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BSS Glossary Abbreviations and Acro
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Copyright © 2007 by Alcatel-Lucent
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BSS Description B10 (3FL10473A-ed 2)

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