Doc.: IEEE 802.11-03/125r2 Submission Slide 1 February 2003 Richard Paine, Boeing + RRM Architecture Considerations.

February 2003

Richard Paine, Boeing

doc.: IEEE 802.11-03/125r2

Submission Slide 1

+

RRM Architecture Considerations

February 2003

Richard Paine, Boeing

doc.: IEEE 802.11-03/125r2

Submission Slide 2

RRM Big Picture

UpperLayers

MAC and PHYLayers PHY Radio Information

MAC Radio Information

PHY

MAC

IP Users of Radio Information

Session Users of Radio Information

Transport Users of Radio Information

Presentation

Application Users of Radio Information

Interface toUpper Layers

February 2003

Richard Paine, Boeing

doc.: IEEE 802.11-03/125r2

Submission Slide 3

RRM Extension Options• RRM blue stars show the likely location of RRM extensions,

though RRM pink stars are (remotely) possible. • RRM Applications are outside the 802.11 specs.

MAC

PLCP

PMD

PLME

PHY SAP

PMD SAP

SME

MLME

PLME SAP

ML

ME

SA

PP

LM

E S

AP

MAC SAP

RRM

RRM

RRM

RRM

RRMRRM

Applications(outside 802.11)

February 2003

Richard Paine, Boeing

doc.: IEEE 802.11-03/125r2

Submission Slide 4

Relationship of RSSI, Operating Point, Sensitivity, SNR

Received Signal Strength

Operating Margin

Actual Operating Point Multipath observed Impairment SNR Rx Sensitivity Rx Implementation dBm Loss Theoretical Operating Point Actual SNR needed to Theorertical support minimum SNR datarate needed to support datarate

Rx Equivalent Input Noise

Noise Figure

Thermal Noise Floor (-101.5 dBm)

February 2003

Richard Paine, Boeing

doc.: IEEE 802.11-03/125r2

Submission Slide 5

TGh layer management model

• Extract from 802.11h-D2.1.32, which addresses some measurement extensions for DFS and TPC.

MAC Timing

MeasurementProcessing

MeasurementPolicy

Channel Switch Decision

MeasurementFrames

SME

MLME

Channel Switch Timing

PLME

SME

MLME

MREQUEST/MREPORT

MeasurementFrames

MeasurementPolicy

MEASURE

CHANNEL SWITCH

MREQUEST/MREPORT

Figure 26 – Layer Management Model

February 2003

Richard Paine, Boeing

doc.: IEEE 802.11-03/125r2

Submission Slide 6

AP Measurements

Processor

AP1

10/100BaseT

Per STA TableAP Table

STA1

CertsPre-authUserCIM SchemaQoS

802.11f ContextBlob

802.11f ContextBlob

802.11f ContextBlob

802.11hRequestFor Info

or

February 2003

Richard Paine, Boeing

doc.: IEEE 802.11-03/125r2

Submission Slide 7

AP1 STA1

Card Measurements

February 2003

Richard Paine, Boeing

doc.: IEEE 802.11-03/125r2

Submission Slide 8

MA

C T

iming

Measurem

entP

rocessing

Measurem

entP

olicy

Channel

Sw

itch D

ecision

Measurem

entF

rames

SM

E

MLM

E

Channel

Sw

itch T

iming

PLM

E

SM

E

MLM

E

MR

EQ

UE

ST

/MR

EP

OR

T

Measurem

entF

rames

Measurem

entP

olicy

ME

AS

UR

E

CH

AN

NE

L S

WIT

CH

MR

EQ

UE

ST

/MR

EP

OR

T

September 2002 doc.: IEEE 802.11-02/568r0

David Skellern, Cisco SystemsSlide 4Submission

802.11 Station Architecture

ISO/IEC 8802-11:1999(E) specifies the following STA architecture (this is Figure 11 of standard)

MAC sublayer

PLCP sublayer

PMD sublayer

PHY Layer Management Entity (PLME)

PHY SAP

PMD SAP

Station Management

Entity(SME)

MAC Layer Management

Entity (MLME)

PLME SAP

MLM

E S

AP

PL

ME

SA

P

MAC SAP

September 2002 doc.: IEEE 802.11-02/568r0

David Skellern, Cisco SystemsSlide 4Submission

802.11 Station Architecture

ISO/IEC 8802-11:1999(E) specifies the following STA architecture (this is Figure 11 of standard)

MAC sublayer

PLCP sublayer

PMD sublayer

PHY Layer Management Entity (PLME)

PHY SAP

PMD SAP

Station Management

Entity(SME)

MAC Layer Management

Entity (MLME)

PLME SAP

MLM

E S

AP

PL

ME

SA

P

MAC SAP

11h

February 2003

Richard Paine, Boeing

doc.: IEEE 802.11-03/125r2

Submission Slide 9

MAC/PHY Context

SME SME

SME SME SME SME

AP1

STA1 STA1 STA1 STA1

AP1 AP1 AP1

AP STA AP STA

STA1 STA2 STA3 STA4

AP1

STA1

AP1

STA1

802.11f Context Blob

802.11h Request for Information

802.11h Request for Information

MLME

PLME

MAC

PLCP

PMD

MLME

PLME

MAC

PLCP

PMD

MAC

PLCP

PMDPLME

MLME MAC

PLCP

PMDPLME

MLME MAC

PLCP

PMDPLME

MLME MAC

PLCP

PMDPLME

MLME

February 2003

Richard Paine, Boeing

doc.: IEEE 802.11-03/125r2

Submission Slide 10

MAC

PLCP

PMD

PLME

PHY SAP

PMD SAP

SME

MLME

PLME SAP

ML

ME

SA

PP

LM

E S

AP

MAC SAP

STA1

AP1

Reports

RPE Histogram

FrameReport

11h Get

Req-Air

Get CCA CCA

CCA REQCCA RCV

Beacon on SetupMgt Frames

ReportRequest

RRM MAC/PHY Interchanges

MGT

NDIS

Linux

February 2003

Richard Paine, Boeing

doc.: IEEE 802.11-03/125r2

Submission Slide 11

RRM Services

Reports from the SME

Requests to the SME

Requests from SME to MLME

Requests from MLME to SME

Passing Requests and Receiving Responses Across the PLME SAP

Passing Requests and Receiving Responses Across the PMD

Information to higher layers with SNMP MIBs

Information to higher layers outside SNMP MIBs

February 2003

Richard Paine, Boeing

doc.: IEEE 802.11-03/125r2

Submission Slide 12

Elements of Radio Measurement

Base Measurements

Per AP Measurements

Per STA Measurements

Requested Measurements

Handoffs to Higher Layers

Measurement Policies

Measurement Topologies

February 2003

Richard Paine, Boeing

doc.: IEEE 802.11-03/125r2

Submission Slide 13

Base Measurements

1 RSSI

2 Signal Quality

3 RPI Histogram

4 PSNI

5 DR

6 Loading (requested vs served)

February 2003

Richard Paine, Boeing

doc.: IEEE 802.11-03/125r2

Submission Slide 14

Per AP Measurements

SSID

Model

# STA Assoc

BSS

ESS

# APs Seen

# STA Seen

DR

Loading

February 2003

Richard Paine, Boeing

doc.: IEEE 802.11-03/125r2

Submission Slide 15

Per STA Measurements

SSID

Model

AP Assoc

BSS

ESS

# APs Seen

# STA Seen

DR

Optimum AP

February 2003

Richard Paine, Boeing

doc.: IEEE 802.11-03/125r2

Submission Slide 16

Requested Measurements

Reports

RPI Histogram

FrameReportReport

RequestNDIS

Linux

Needing Definition:Report RequestFrame ReportRPI HistogramReportsLinux InterfaceNDIS InterfaceSNMP Interface

February 2003

Richard Paine, Boeing

doc.: IEEE 802.11-03/125r2

Submission Slide 17

Handoffs to Higher Layers

MAC and PHYLayers PHY Radio Information

MAC Radio Information

PHY

MAC

Interface toUpper Layers

Needing Definition:NDIS ObjectsLinux Objects

February 2003

Richard Paine, Boeing

doc.: IEEE 802.11-03/125r2

Submission Slide 18

Measurement Policies

Needing Definition:SME Measurement Policies11h Measurement Policies

February 2003

Richard Paine, Boeing

doc.: IEEE 802.11-03/125r2

Submission Slide 19

Measurement Topologies

12

3

45

Needing Definition:Per BSS TopologyPer ESS TopologyPer Radio View Topology

February 2003

Richard Paine, Boeing

doc.: IEEE 802.11-03/125r2

Submission Slide 20

Maximum Amplitudes

Frequency (MHz)

Am

pli

du

e (d

Bm

)

Future Allocation & Utilization

• Static Spectrum Management is Limited in Its Ability to Improve Spectrum Utilization Efficiencies

• Static Spectrum Management is Limited in Its Ability to Improve Spectrum Utilization Efficiencies

Fixed Spectrum Assignments Lead Fixed Spectrum Assignments Lead to Inefficient Spectrum Utilizationto Inefficient Spectrum Utilization– Opportunities Exist in Time, Opportunities Exist in Time,

Frequency, and GeographyFrequency, and GeographyRF Spectrum Allocated by PolicyRF Spectrum Allocated by Policy– Allocations, Assignments, and Allocations, Assignments, and

Incumbents Vary by CountryIncumbents Vary by Country

Heavy UseHeavy Use

Sparse UseSparse Use

Observations Show Bands of Local Observations Show Bands of Local Heavy and Sparse ActivityHeavy and Sparse Activity Temporal Usage Characteristics Temporal Usage Characteristics

Vary by Band & ServiceVary by Band & Service Potential for Usage Dependent on Potential for Usage Dependent on

Incumbent Service & EquipmentIncumbent Service & Equipment

Heavy UseHeavy Use

Medium UseMedium Use