doc.: IEEE 802.11-07/2215r4

Submission

August 2007

Ganesh Venkatesan, Intel CorporationSlide 1

Proposal –Radio Resource Measurement Capability Enabled Bitmask IE

Date: 2007-08-23

Name Company Address Phone email Ganesh Venkatesan Intel Corporation 2111NE 8th Ave, Hillsboro,

OR 97124 503-334-6720 Ganesh.Venkatesan@intel.com

Authors:

doc.: IEEE 802.11-07/2215r4

Submission

August 2007

Ganesh Venkatesan, Intel CorporationSlide 2

Abstract

This document is a submission for Radio Resource Measurement Capability Enabled Bitmask Information Element. Corresponding normative text is in document 07/2285r0.

This proposal addresses part of CID #12 (LB96#25-Palm) and SB CID #421:There are too many varied procedures here. It is unlikely that implementations will implement all of the procedures. Each of the supported procedures/reports should be separately indicated and negotiated*

* Not Addressed by this submission

doc.: IEEE 802.11-07/2215r4

Submission

Rationale• 802.11k is a collection of measurement tools

• Some measurements require additional resources and devices may choose not to implement them

• When a device advertises support for 802.11k (dot11RadioMeasurementEnabled is TRUE), it is not clear what RRM

– is supported (and enabled) and

– what is not supported

• A STA will have to send one or more measurement requests and analyze the received reports to comprehend what the measuring STA is capable of

• A simple method is to advertise RRM capability via a RRM Capability Enabled Bitmask IE

August 2007

Ganesh Venkatesan, Intel CorporationSlide 3

doc.: IEEE 802.11-07/2215r4

Submission

August 2007

Ganesh Venkatesan, Intel CorporationSlide 4

RRM Capability Enabled Bitmask IE

• Bits in the IE Indicate which of the RRMs are supported by the STA

• MIB attribute dot11RadioMeasurementEnabled = TRUE means – Capability Information Field:12 is set– that the STA is capable of receiving RRM requests

and responding• RRM Capability Enabled Bitmask is present in Probe

Response, [Re]Association Request and [Re]Association Response if dot11RadioMeasurementEnabled is TRUE

• Adds 4 octets to the above frames

doc.: IEEE 802.11-07/2215r4

Submission

RRM Capability Enabled Bitmask IE (Octet-1)

August 2007

Ganesh Venkatesan, Intel CorporationSlide 5

Bit Position Measurement Capability Enabled Annex-A Entry

0 Link Measurement 2.3, 2.4

1 Neighbor Report 2.5, 2.6, 12

2 Parallel Measurements 3.1

3 Triggered Reports 3.3

4 Repeated Measurements 3.7

5 Measurement Pause 3.8

6 Quiet Interval 23

7 Beacon Measurement (passive) 4.2, 4.6

doc.: IEEE 802.11-07/2215r4

Submission

RRM Capability Enabled Bitmask IE (Octet-2)

August 2007

Ganesh Venkatesan, Intel CorporationSlide 6

Bit Position Measurement Capability Enabled Annex-A Entry

8 Beacon Measurement (active) 4.3, 4.6

9 Beacon Measurement (table) 4.4, 4.6

10 Reporting Condition field in Beacon Report

4.5

11 Frame Measurement 5

12 Channel Load 6

13 Noise Histogram 7

14 Statistics 8

15 Location Configuration Information 9

doc.: IEEE 802.11-07/2215r4

Submission

RRM Capability Enabled Bitmask IE (Octet-3)

August 2007

Ganesh Venkatesan, Intel CorporationSlide 7

Bit Position Measurement Capability Enabled Annex-A Entry

16 Transmit Stream 10

17 AP Channel Report 11.1, only for APs

18 MIB (Annex-Q) 18

19 Measurement in non-operating channels

20-22 Maximum Measurement Duration 3.4 Value = 0 indicates that the Measurement Duration specified in the Measurement Request is used. Value = non-zero indicates duration (in Beacon Intervals). Measurement duration = Beacon Interval*2^(Maximum Measurement Duration – 4)

23 Reserved

doc.: IEEE 802.11-07/2215r4

Submission

August 2007

Ganesh Venkatesan, Intel CorporationSlide 8

RRM Capability Enabled Bitmask IE (Octet-4)

Bit Position Measurement Capability Enabled Notes/Annex-A Entry

24-26 Measurement Pilot Capability (see next slide) 19

27-31 Reserved

doc.: IEEE 802.11-07/2215r4

Submission

Measurement Pilot Capability

August 2007

Ganesh Venkatesan, Intel CorporationSlide 9

Device Value Meaning

STA 0 MP not supported

STA 1 MP supported (AP can transmit and non-AP STA can receive)

AP Others MP transmitted by the AP. MP Transmission Interval is derived from the value (next slide).

Non-AP STA 2 MP is used by the non-AP STA

Non-AP STA Others Reserved

doc.: IEEE 802.11-07/2215r4

Submission

MP Interval from Measurement Pilot Capability

August 2007

Ganesh Venkatesan, Intel CorporationSlide 10

Measurement Pilot Capability Value

MP Interval with respect to Beacon Interval

2 >3% and < 5% of Beacon Interval

3 >=5% and < 10%

4 >=10% and < 15%

5 >=15% and <20%

6 >=20% and < 25%

7 >=25% and < 50%

doc.: IEEE 802.11-07/2215r4

Submission

RRM Capability Enabled Bitmask IE (format)

August 2007

Ganesh Venkatesan, Intel CorporationSlide 11

Slide-5 Slide-6 Slide-7 Slide-8

Octet 1 2 3 4

Bit = 1: implies that the device 1. Implements support the corresponding RRM and2. The corresponding RRM is enabled in the device

Exceptions are bits 20-22 Support for maximum Measurement Duration24-26 Support for Measurement Pilot

doc.: IEEE 802.11-07/2215r4

Submission

Normative Text Changes• Minimal change to the amendment:

– Define Radio Resource Measurement Capability IE

– Add the IE to Probe Response, Association Request and Reassociation Request frames

– Fix Clause 11.10.5 to describe the semantics of the bits in the RRM Capability Enabled IE:• bit set implies that the station will never respond (for the duration of

the current association) to the request with a report indicating that it is ‘incapable’ of performing the measurement.

• A STA receiving a measurement request that it advertises to support in the Capability IE can always respond with a report indicating that it is ‘refusing’ to perform the measurement.

– Fix Annex-A

– Fix Annex-D

August 2007

Ganesh Venkatesan, Intel CorporationSlide 12

doc.: IEEE 802.11-07/2215r4

Submission

August 2007

Ganesh Venkatesan, Intel CorporationSlide 13

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