March 2008 doc IEEE 802 11 080364 r

March 2008 doc. : IEEE 802. 11 -08/0364 r 1 WLAN Overlay with 60 GHz Channels Date: 2008 -03 -18 Authors: Submission 1 Barr (Motorola)

March 2008 doc. : IEEE 802. 11 -08/0364 r 1 Purpose of this document • This proposal is to stimulate discussions and highlight a possible focus for using IEEE 802. 15. 3 c PHY as a high speed channel in cooperation with IEEE 802. 11(n) WLAN host. • Recommendation: – Combine strengths of 802. 11 with 802. 15. 3 c PHY instead of attempting to create a separate 60 GHz WLAN Submission 2 Barr (Motorola)

March 2008 doc. : IEEE 802. 11 -08/0364 r 1 Key elements • Concepts highlighted – WLAN Use Case Focused – Clusters of high throughput access a desired use case • Documents that served as a foundation for this proposal – 08/0344 r 0 - WFA VHT Usage Models – P 802 -15 -3 c-DF 2 -Draft-Amendment. pdf – 15 -06 -0369 -09 -003 c-summary-usage-model. ppt Submission 3 Barr (Motorola)

March 2008 doc. : IEEE 802. 11 -08/0364 r 1 WFA Usage Model Examples • 1 a: Desktop Display at home or enterprise – Pre-Conditions: User has operation WLAN network for internet access and general data networking. The wireless network used for storage and display may or may not be part of the other operational WLAN network. – Application: User can wirelessly display the output of the computer to monitor or TV using uncompressed video. User can wirelessly store data from a computer to a hard drive. The data being stored transfers at ~1 Gbps, jitter is < 200 msec, delay is <200 msec, 10 E-5 PER. – Environment: Devices could be operating in isolated cluster in a room such as a den or in close proximity to other similar clusters in a multi-cube office. Transmissions are mostly LOS. Distances between far corners of the room are <5 M. • 3 a: Rapid Sync n Go, File Transfer – Application: User can sync movies to/from the camcorder and transfer the picture files. An MPEG 4 video file of 30 MB takes 4 minutes over a single hop 1 Gbps link. 200 jpeg (picture) files of 10 MB takes ~30 seconds over a 1 Gbps single hop link. Jitter and delay are not critical. Instead, the key metric is the user’s time spent to do a transfer. Less than 1 minute is acceptable. 1 -5 minutes may be acceptable. More than 5 minutes is not acceptable. – Environment: Devices could be operating in isolated cluster in a room such as a den or in close proximity to other similar clusters in multi-cube office. Transmissions are mostly LOS. Distance between far corners of the room are <8 m. Submission 4 Barr (Motorola)

March 2008 doc. : IEEE 802. 11 -08/0364 r 1 Sample PAR: scope • The scope of this project is the definition of an amendment to the 802. 11 physical layers (PHY) and the 802. 11 Medium Access Control Layer (MAC) so that modes of operation can be enabled that are capable of supporting: – Compatibility with existing IEEE Std 802. 11 -2007 plus IEEE 802. 11 n amendment systems for backwards compatibility, – Recognition and allocation of dedicated VHT channels using 60 GHz PHY compatible with IEEE 802. 15. 3 c amendment PHY for multi-gigabit direct links between AP-STA or STA-STA, – Partitioning of high throughput data traffic to allocated VHT channels. Submission 5 Barr (Motorola)

March 2008 doc. : IEEE 802. 11 -08/0364 r 1 Sample PAR: purpose (evolution TGn) • The purpose of the project is to improve the 802. 11 wireless local area network (LAN) user experience by providing significantly higher throughput for existing WLAN application areas and to enable new market segments that have throughput requirements that cannot be met with current 2. 4 and 5 GHz channel allocations. Submission 6 Barr (Motorola)

March 2008 doc. : IEEE 802. 11 -08/0364 r 1 Concept • Typical WLAN operation provided by existing IEEE 802. 11(n) radio • New device capability discovery messages created to allow VHT devices to determine whether target devices support VHT mode, manage availability of VHT channels, and allocate VHT channels to device pairs on demand – Utilize 60 GHz radio to determine if VHT channel connection possible • VHT channels utilize 60 GHz radio based on IEEE 802. 15. 3 c PHY but use extended 802. 11 MAC for compatibility with existing 802. 11 applications • VHT MAC extensions allow allocation of packet traffic to 802. 11(n) channel or 60 GHz channel(s): – Typical WLAN traffic routed to 802. 11(n) channel – VHT traffic routed to 60 GHz channel associated with an application – Multiple 60 GHz channels could be active at the same time Submission 7 Barr (Motorola)

March 2008 doc. : IEEE 802. 11 -08/0364 r 1 Rationale • Without allocation of additional unlicensed (or licensed) spectrum, it may not be possible to realize multi-Gbps throughput. • It will be extremely difficult to optimize 60 GHz performance while maintaining WLAN medium access concepts. • IEEE 802. 15. 3 c PHY amendment has capability of supporting 5 Gbps PHY rates between two devices within 10 meters, and can support multiple 60 GHz channels in the same area with spectral and beam steering mechanisms. • IEEE 802. 15. 3 c PHY will be realized by silicon providers in late 2009 and no later than end of 2010. Submission 8 Barr (Motorola)