doc.: ieee 802.11-07/2215r1 submission july 2007 ganesh venkatesan, intel corporationslide 1...

doc.: IEEE 802.11-07/2215r1

Submission

July 2007

Ganesh Venkatesan, Intel CorporationSlide 1

Proposal – Supported Radio Resource Measurement Bitmask IE

Date: 2007-07-17Name Company Address Phone email Ganesh Venkatesan Intel Corporation 2111NE 8th Ave, Hillsboro,

OR 97124 503-334-6720 [email protected]

Authors:

Notice: This document has been prepared to assist IEEE 802.11. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein.

Release: The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.11.

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doc.: IEEE 802.11-07/2215r1

Submission

July 2007


Abstract

This document is a submission for Supported Radio Resource Measurement Bitmask Information Element. Corresponding normative text is in document 07/xxxxr0.

This proposal addresses CID #12 (LB96#25-Palm):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

doc.: IEEE 802.11-07/2215r1

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 supported measurements via a Supported RRM Bitmask IE

July 2007


doc.: IEEE 802.11-07/2215r1

Submission

July 2007


Supported RRM 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 a RRM request

and respond to it• Is present in Probe Request, Probe Response,

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

• Adds 5 octets to the above frames

doc.: IEEE 802.11-07/2215r1

Submission

Supported RRM Bitmask IE (Octet-1)

July 2007


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 Enable bit 3.2

4 Autonomous Reports 3.3

5 Repeated Measurements 3.7

6 Measurement Pause 3.8

7 Reserved

doc.: IEEE 802.11-07/2215r1

Submission


July 2007



8 Beacon Measurement (passive) 4.2



11 Frame Measurement 5

12 Channel Load 6

13 Noise Histogram 7

14 Statistics 8

15 LCI Measurement 9

doc.: IEEE 802.11-07/2215r1

Submission


July 2007



16 Transmit Stream/Category 10

17 AP Channel Report 11

18 RCPI Measurement 13

19 RCPI with Active Scanning 14

20 RSNI 15

21 Power Capability in [Re]Association Element 17

22 MIB 18

23 Measurement Pilot Supported* 19

•This bit is interpreted in the context of the source:1. AP is the source of this IE (probe response, [re]association response): the bit implies that the AP supports

Measurement Pilot frames2. Non-AP STA is the source of the IE (probe request, [re]association request): the bit implies that the STA is capable of

processing Measurement Pilot

doc.: IEEE 802.11-07/2215r1

Submission

July 2007




24

Beacon, Probe Response has :16.1Country and TPC Information

25 Power Constraint Element 16.2

26 BSS Average Access Delay 20

27 Antenna Information 21

28 Measurement Pilot Tx Information 22

29 BSS Available Admission Capacity 24

30 BSS AC Access Delay 25

31 Quiet Interval 23

doc.: IEEE 802.11-07/2215r1

Submission


July 2007


Bit Position Measurement Capability Enabled Notes/Annex-A Entry

32 Support Measurements in non-operating channel

33 Duration Mandatory 3.4

34-37 Maximum Measurement Duration Interpreted only if Bit-5 is zero. Value = 0 indicates that there are no limits on measurement duration. Duration in 100s of TUs?.

38 Measurement Pilot Enabled*

39 Reserved

•This bit is interpreted in the context of the source:1. AP is the source: implies that the AP is actively transmitting MPs2. Non-AP STA is the source: implies that the STA is actively using MP information in its normal operation

doc.: IEEE 802.11-07/2215r1

Submission

Supported RRM Bitmask IE (format)

July 2007


Slide-5 Slide-6 Slide-7 Slide-8 Slide-9

Octet 1 2 3 4 5

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

Exceptions are bits 34-38.

doc.: IEEE 802.11-07/2215r1

Submission

Normative Text Changes

• Minimal change to the amendment:– Define Radio Resource Measurement Capability IE

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

– Fix Clause 11.10.5 to describe the semantics of the bits in the Capability 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

July 2007


doc.: IEEE 802.11-07/2215r1

Submission

Discussion Topics

• Measurement Pilot Transmission Interval

• Maximum Measurement Duration

July 2007


doc.: IEEE 802.11-07/2215r1

Submission

July 2007


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