06079 PSAWG Special Meeting: ISSI Packet Data Architecture

1
06-079 PSAWG Special MeetingISSI Packet Data
Architecture

• July 11-13, 2006
• Tom Hengeveld, Tyco/Electronics M/A-COM, Chair

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Important Notice for Participation and Call for
IPR
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Goal of the Meetings

• Arrive at a concensus architecture for Packet
  Data over the ISSI
• Develop a common understanding of SNDCP
• Identify target cases/requirements including
  network models
• Develop concensus Functional Model
• What are all the pieces parts involved, how are
  they interconnected, and what protocols are used
  to connect them?
• What is the role of an Access Point?
• What protocol covers the relationship between an
  Access Point and an SNDCP end-point?
• Other Concerns
• Develop a concensus primitive model
• Assign an author/authors for the next draft of
  the Architecture section

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Agenda for the Meetings

• Attendance by Sign-in Sheet
• Tuesday
• Background - A Common Understanding of SNDCP
• Overview of SNDCP Context Establishment Data
  Elements (This ppt, Tom Hengeveld)
• EADS/NN Presentation on Context Activation
• Discussion of De-registration (Jim Eastwood)
• Other Questions
• Target Environment/Network Models
• Target Model Cases (this ppt, Tom Hengeveld)
• 06-078 Lucent Misc. Comments through Slide 8 (Tom
  Chu)
• I/P Address Assignment (EADS/NN Presentation?)
• Functional Model (Wednesday)
• System Functional Model/Identification of Parts
• Decomposition by Home/Serving RFSS
• Lucent Misc. Comments Remaining Slides
• Primitive Model (Thursday)

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Other Stuff

• Start at 8/830 each day
• The hotel made me buy a certain amount of food,
  so
• Theyll be coffee and stuff (as you see) each
  morning.
• Ive got afternoon coffee and beverages coming at
  2
• Lunch on your own (noonish to 1pm)
• Various breaks as we need

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Nearby Resturants

• Various Places
• Lilac Blossom Very Good Chinese Right out of
  the parking lot, or walk about ¾ of a mile.
• Panera Left out of the parking lot, turn into
  shaws plaza, right and right again, or walk
  about ¾ of a mile.
• Legal Seafoods if you want to drive to the
  Burlington Mall Best Fish Anywhere, no contest,
  not cheap.
• Giorgios Amherst NH Good Italian with Good
  Martinis
• Bertucchis Nasha on 101A Brick Oven Italian
• YuYus Japanese Great Sushi, Good Bar Exit
  6
• Bugaboo Creek Outback from Canada
• Marthas Very Good Beer in the Center of Nashua
  (CON)
• Surf Not my favorite but people like it. Fish
  with too much sauce in the CON.

• Margaritas Somewhere in the CON, decent
  tex-mex with a good bar
• On the Strip
• Left out of the parking lot, right at Danial
  Webster
• Longhorn Steakhouse
• Lui Luis Italian
• Unos
• Chilis
• Smokey Bones
• Outback
• On the Border
• Left at Danial Webster
• Mexican place on the right that I dont know the
  name of but it doesnt totally stink.

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A Common Understanding of SNDCP Slides to
stimulate conversation
8
Context Activation
RFSS
MRC
Activate Context Request
Activate Context Accept
Activate Context Reject
If the RFSS doesnt like a setting suggested by
the mobile, does it reject the request, or
suggest different settings?
RFSS
MRC
IP Packet?
Activate Context Command
Activate Context Request
Activate Context Accept
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Apparently, it looks like this
Access Point 1
User Network 1
???
MRC SNDCP End-point
FNE SNDCP End-point
Access Point n
User Network n
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A Picture from BAEB-A
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A Paragraph from BAEB-A
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Another paragraph from BAEB-A
13
Another paragraph from BAEB-A
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Negotiated SNDCP Parameters
ACR Activate Context Request, ACA Activate
Context Accept X Interested, C Controls, P
Present
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Negotiated SNDCP Parameters
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Other questions

• Why does PPP have significance over the air?
  Jim Eastwood
• Why do we send PPP information in the PCO value
  over the air?
• How is priority used in SNDCP?
• Can multiple contexts share an IP address? (u1 on
  EADS/NN proposal)

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Target Model Cases
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Target Model Cases

• MRC/MDP share an IP address (or no MDP)
• Most restrictive, easiest to implement in ISSI
• Can there be more than one NSAPI in this case?
• MRC and gt 0 MDPs in the same address domain, not
  subnetted
• Multiple NSAPIs
• MRC and gt 0 MDPs in the same address domain,
  subnetted
• EADS/NN believe this is an important case to
  reduce number of context activations required.
• MRC and gt 0 MDPs, in different address domains
  with MDPs sharing a common address domain
• MRC and gt 0 MDPs, all in potentially different
  address domains
• Least restrictive

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Big Hairy Issues

• The use of the APN is not clearly defined. It is
  identified as (potentially) representing any of
  three different things
• Vague definition from BAEB-A
• SNDCP endpoint within the FNE
• may identify the Packet Data Network
• optionally a service to be offered
• We believe that a mobile or FES IP address is
  unique within an APN.

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Silly Notes

• Home RFSS (?) needs to be able to route packets
  between mobiles in the same APN?

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We agree

• BAEB-A (pg 45, 4.4.5.2) requires sequential use
  of NSAPIs by the MRC. We believe that this
  restriction should be removed.
• BAEB-A (4.4.4.1,4.4.4.2) allow the RFSS to change
  Ready timer value with unsolicited Context
  Accept, we believe it would be useful to extend
  this to the DAC value.
• Maybe on compression and other values as well.
• That AABD should clarify what makes you become
  unregistered.
• That we need to go all the wayto 5 on the
  cases slide.

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At this level of complexity, we seem to agree
CP 1
Consistent IP Network
10.12.1.
Ed
ITA 10.12.1.x
CP 1 10.12.2.x
10.12.2.
IT A
RFG
Ed
MR1 10.12.3.x
Prop.
RFG
Home RFSS MR1
Ed
10.12.0.0
Ed
Prop.
RFG
MR1
Prop.
10.12.3.
Home RFSS MR2
RFG
10.12.4.
Prop.
MR2
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At this level of complexity, we seem to agree
Agency 1
CP 2
10.12.1.
Ed
ITA 10.12.1.x
CP 1 10.12.2.x
CP 1
10.12.1.
Ed
10.12.2.
IT B
MR1 10.12.3.x
10.12.0.0
RFG
Ed
10.12.2.
Prop.
IT A
SAME STINKING IP ADDRESSES
RFG
RFG
Ed
Agency 2
Prop.
Prop.
ITB 10.12.1.x
CP 2 10.12.2.x
RFG
Home RFSS
Prop.
10.12.3.
MR2 10.12.3.x
10.12.0.0
MR110.12.4.1
MR2 10.12.4.1
EADS Wants to standardize this interface.
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Unique Address of one of these things is APN,IP
Address
MES
MDP1
MDP2
MDP3
MRC
MDP1 10.12.4.1
MDP 2 10.12.4.1
MDP 3 10.12.4.2
MRC 10.12.4.1
Access Point Network 1
Access Point Network 2
Access Point Network 3
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Unique Address of one of these things is APN,IP
Address
MES
MDP1
MDP2
MDP3
MRC
MDP1 10.12.4.1
MDP 2 10.12.4.1
MDP 3 10.12.4.2
MRC 10.12.4.1
Access Point Network 1
Access Point Network 2
Access Point Network 3
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Mobile to Mobile Data in the same APN
Which way?, Green, because there is an RFG at
CP1, so the data would be decrypted and
re-encrypted.
CP 1
Ed
Ed
Home 1
Home 2
G
M1
M2