mip generic slides

7
MiP Generic Slides

Upload: adebisi-adebambo

Post on 14-Apr-2017

197 views

Category:

Technology


0 download

TRANSCRIPT

Page 1: Mip generic slides

Slide titleIn CAPITALS

50 pt

Slide subtitle 32 pt

MiP Generic Slides

Page 2: Mip generic slides

Top right corner for field-mark, customer or partner logotypes. See Best practice for example.

Slide title 40 pt

Slide subtitle 24 pt

Text 24 pt

Bullets level 2-520 pt

2

MSC Pool Traffic Distribution

– BSC/RNC distributes subscribers roaming into the pool area among the MSCs.– Subscribers remain registered in the same MSC until they roam out of the pool

area.

Service Area 1

MSC

BSC/RNC

Service Area 2

MSCService Area 3

MSC

BSC/RNC

BSC/RNC

BSC/RNC

BSC/RNC

Pool Service Area

MSC

BSC/RNC

MSC MSC

BSC/RNC

BSC/RNC

BSC/RNC

BSC/RNC

Traffic distribution based on relative

MSC capacity

Reduced load, as less Handover and Location Update

traffic.MSC MSC MSC

No impacts on terminals.

Page 3: Mip generic slides

Top right corner for field-mark, customer or partner logotypes. See Best practice for example.

Slide title 40 pt

Slide subtitle 24 pt

Text 24 pt

Bullets level 2-520 pt

3

Relative Capacity Factor (1-255), defined in BSC

Resulting Trafficin %

MSC1 4 50%

MSC2 2 25%

MSC3 2 25%

Relative Capacity Factor (1-255), defined in BSC

Resulting Trafficin %

NRI (0-1023), defined in MSC

and BSC

MSC1 4 50% 1, 2, 3, 4

MSC2 2 25% 5, 6

MSC3 2 25% 7, 8

MSC1

BSC/RNC

MSC2 MSC3

BSC/RNC

BSC/RNC

BSC/RNC

BSC/RNC

Pool Service Area

MSC Pool Traffic Distribution, Example of Location Updating with IMSI

– BSC distributes subscribers roaming into the pool area among the MSCs.– Subscribers remain registered in the same MSC until they roam out of the pool

area.

BSC selects one MSC, according to the relative MSC capacity factors.BSC selects MSC1.

Location Update(IMSI)

Subscriber roams into the pool.

MSC assigns a TMSI, including a NRI. The

NRI identifies the MSC.

Temporary Mobile Subscriber Identity (TMSI)

TMSIGeneration

Network ResourceIdentifier (NRI)

TMSIIdentification

TMSI Assignment(TMSI incl. NRI=1)

Page 4: Mip generic slides

Top right corner for field-mark, customer or partner logotypes. See Best practice for example.

Slide title 40 pt

Slide subtitle 24 pt

Text 24 pt

Bullets level 2-520 pt

4

MSC1

BSC/RNC

MSC2 MSC3

BSC/RNC

BSC/RNC

BSC/RNC

BSC/RNC

Pool Service Area

MSC Pool Traffic Distribution, Example of Call Setup

– BSC routes the traffic towards the MSC identified by the NRI

BSC routes the trafficto the MSC identified

by the NRI. “Call Setup” (TMSI incl.

NRI=1)Subscriber,registered in the pool,

initiates now a call.

MSC verifies NRI and handles call as normal.

Temporary Mobile Subscriber Identity (TMSI)

TMSIGeneration

Network ResourceIdentifier (NRI)

TMSIIdentification

“Call Continue”

Relative Capacity Factor (1-255), defined in BSC

Resulting Trafficin %

NRI (0-1023), defined in MSC

and BSC

MSC1 4 50% 1, 2, 3, 4

MSC2 2 25% 5, 6

MSC3 2 25% 7, 8

Page 5: Mip generic slides

Top right corner for field-mark, customer or partner logotypes. See Best practice for example.

Slide title 40 pt

Slide subtitle 24 pt

Text 24 pt

Bullets level 2-520 pt

5

MSC Pool Load Distribution

Service Area 1

MSC

BSC/RNC

Service Area 2

MSCService Area 3

MSC

BSC/RNC

BSC/RNC

BSC/RNC

BSC/RNC

Pool Service Area

MSC

BSC/RNC

MSC MSC

BSC/RNC

BSC/RNC

BSC/RNC

BSC/RNC

– The load is distributed over the MSCs in the pool. No load peaks in individual MSCs. – Pooling gives more capacity, as the existing capacity is utilized more efficiently.

MSC MSC MSC

MSC MSC MSCMSCMSC

MSCMSC MSCMSC MSCMSC

High Risk for Congestion

No Risk for Congestion

Simplified dimensioning and planning.

Page 6: Mip generic slides

Top right corner for field-mark, customer or partner logotypes. See Best practice for example.

Slide title 40 pt

Slide subtitle 24 pt

Text 24 pt

Bullets level 2-520 pt

6

MSC Pool Scaleable Capacity

Pool Service Area

MSC

BSC/RNC

MSC

BSC/RNC

BSC/RNC

BSC/RNC

BSC/RNC

– Number of pool members can be increased over time to match the traffic growth no complex BSC/RNC re-homing

Service Area 1

MSC

BSC/RNC

Service Area 2

MSC

BSC BSCBSC/RNC BSC

MSCMSC MSCMSC

MSCMSC MSCMSC

MSCMSCMSCMSC

MSCMSC MSCMSC

MSCService Area 2a Service Area 2b

MSC

BSC/RNC

BSC/RNC

BSC/RNC

MSCMSCMSCMSCMSC MSCMSC

MSCMSCMSC MSCMSCMSCMSC

Capacity expansion by

service area split (re-configuration of radio network).

Simple capacity expansion by

adding one MSC. Independent RAN and CN planning.

Page 7: Mip generic slides

Top right corner for field-mark, customer or partner logotypes. See Best practice for example.

Slide title 40 pt

Slide subtitle 24 pt

Text 24 pt

Bullets level 2-520 pt

7

MSC Pool Redundancy

Service Area 1

MSC

BSC

Service Area 2

MSCService Area 3

MSC

BSC BSCBSC BSC

– When one MSC becomes unavailable (planned or unplanned) , the BSC/RNC redistributes the mobiles when they access the network among the remaining MSCs.

Pool Service Area

MSC

BSC/RNC

MSC MSC

BSC/RNC

BSC/RNC

BSC/RNC

BSC/RNC

MSCMSC

MSCMSC

MSC MSC

– Redistribution time of all mobiles is the ~same as the periodic registration time.– Incoming calls can be received, when the mobile station has been redistributed.– Benefit:

Increased MSC In-Service Performance. “Zero” Down Time on MSC layer. An MSC can be taken out for service in controlled and graceful way for

planned maintenance or upgrade when using load re-distribution.

“Zero” Down Time.

Increased ISP.