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Proposal –Radio Resource Measurement Capability Enabled Bitmask IE

This proposal suggests using a Bitmask IE to indicate supported RRM capabilities in IEEE 802.11k networks to streamline measurement procedures.

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Proposal –Radio Resource Measurement Capability Enabled Bitmask IE

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  1. Proposal –Radio Resource Measurement Capability Enabled Bitmask IE Date: 2007-08-23 Authors: Ganesh Venkatesan, Intel Corporation

  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 Ganesh Venkatesan, Intel Corporation

  3. 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 Ganesh Venkatesan, Intel Corporation

  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 Ganesh Venkatesan, Intel Corporation

  5. RRM Capability Enabled Bitmask IE (Octet-1) Ganesh Venkatesan, Intel Corporation

  6. RRM Capability Enabled Bitmask IE (Octet-2) Ganesh Venkatesan, Intel Corporation

  7. RRM Capability Enabled Bitmask IE (Octet-3) Ganesh Venkatesan, Intel Corporation

  8. RRM Capability Enabled Bitmask IE (Octet-4) Ganesh Venkatesan, Intel Corporation

  9. Measurement Pilot Capability Ganesh Venkatesan, Intel Corporation

  10. MP Interval from Measurement Pilot Capability Ganesh Venkatesan, Intel Corporation

  11. RRM Capability Enabled Bitmask IE (format) • Bit = 1: implies that the device • Implements support the corresponding RRM and • The corresponding RRM is enabled in the device • Exceptions are bits • 20-22 Support for maximum Measurement Duration • 24-26 Support for Measurement Pilot Ganesh Venkatesan, Intel Corporation

  12. 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 Ganesh Venkatesan, Intel Corporation

  13. Feedback? Ganesh Venkatesan, Intel Corporation

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