Doc.: IEEE 802.11-Yy/Xxxxr0 s2
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March 2010 doc.: IEEE 802.11-yy/xxxxr0
IEEE P802.11 Wireless LANs Resolution to CID 2787 – Portal definition in 802.11 not matching with 802.11s
Date: 2010-03-17
Author(s):
Name Affiliation Address Phone email
Riedel Communications GmbH Guido R. & Co. KG, Uellendahler Straße +49-202-292- Philips [email protected] Hiertz 353, 42109 Wuppertal, Federal 9987 Republic of Germany
Dee HTC 37, 5656 AE Eindhoven, Philips dee.denteneer@phili Denteneer The Netherlands ps.com
Abstract
This document resolves CID 2787. We introduce a new entity denoted as mesh gate. Mesh gates connect to the distribution system. Whereby, the MBSS has a generic access to other entities well specified in the 802.11 standard.
Submission page 1 Guido R. Hiertz, Philips et al. March 2010 doc.: IEEE 802.11-yy/xxxxr0
Comment
2787 Wang, Qi According to the base spec, "A portal is As in comment. the logical point at which MSDUs from an integrated non-IEEE-802.11 LAN enter the IEEE 802.11 DS." In Fig. s1, Portal1~4 interconnect 802.11 LAN with DS, which doesn't match the "portal" definition in the base spec, and this needs to be corrected. Also, A DS should contain 802.11 STAs that belong to one ESS. Since there is only one ESS in Fig. s1, why are two DSes included in the figure?
Resolution
Counter Resolution Note
See submission 11-10-0394-00-000s.
Submission page 2 Guido R. Hiertz, Philips et al. March 2010 doc.: IEEE 802.11-yy/xxxxr0
3 Definitions
Instruction to the editor: Insert the following new definition where appropriate:
3.xy Mesh gate: A mesh STA that has access to the distribution system.
Submission page 3 Guido R. Hiertz, Philips et al. March 2010 doc.: IEEE 802.11-yy/xxxxr0
5 General description
Instruction to the editor: Change Clause 5 of IEEE 802.11s as follows:
5 IEEE 802.11 components and mesh BSS
An eExample mesh and infrastructure BSSs and 802.11 network isare illustrated in Error: Reference source not found. Only mesh STAs participate in mesh functionalities such as formation of the mesh BSS, path selection and forwarding. Instead of existing independently, a mesh BSS may also access the Distribution System (DS). A mesh gate is any entity that has mesh STA functionality and enables access to the DS, via the WM for mesh STAs of the sam e mesh BSS.
It is possible for one device to offer any combination of the functions of an AP, a portal, a mesh STA and a mesh gate.A mesh STA may be collocated with one or more other entities (e.g., AP, portal, etc.), see Error: Reference source not found. The implementation of such collocated STAs entities is beyond the scope of this standard. The configuration of a mesh STA gate that is collocated with an Access Point allows the utilization of the mesh BSS as a distribution system. In this case, two different entities (mesh STA and Access Point) exist in the collocated device and the mesh BSS is can be hidden to the STAs that associates to the Access Point. Only mesh STAs participate in mesh functionalities such as path selection and forwarding. Portals collocated with one or more mesh STAs interface the mesh BSS to other IEEE 802 LAN segments.
5 Interworking with external networks
A mesh BSS may have an interface to zero or more portals mesh gates that may be connected to one or more LAN segmentDistribution Systems. Using the Portal Gate Announcement element a mesh STA that is collocated with one or more portals mesh gates announces that it has an interfacecan reach to a one or more portals or one or more other mesh BSSs. Portal Gate Announcements allow mesh STAs to select the appropriate portal mesh gate and build a path towards it. In case multiple portals mesh gates are connected to the mesh BSS, proper configuration is necessary. The mechanisms and frames utilized to manage the configuration are defined for the mesh BSS. The details of the mesh BSS interworking are described in Error: Reference source not found.
5 Distribution of messages within a DS
5 Distribution
Instruction to the editor: Change the sixth paragraph in 5.4.1.1 as follows:
While IEEE Std 802.11 does not specify DS implementations, it does recognize and support the use of the WM as the one possible DSM. This is specifically supported by the IEEE 802.11 frame formats. (Refer to Clause Error: Reference source not found for details.) A mesh BSS can form the an entire DS or a part of the a DS using the WM, as shown in Error: Reference source not found . Mesh services are used to form a mesh BSS and distribute messages. How mesh BSSs are formed and how messages are distributed through a mesh BSS are defined in Clause Error: Reference source not found .
Submission page 4 Guido R. Hiertz, Philips et al. March 2010 doc.: IEEE 802.11-yy/xxxxr0
Instruction to the editor: Replace figure s1 in IEEE 802.11s with the following:
infrastructure BSS 18
STA 19 STA 20 DS STA 18 Mesh AP Gate
AP infrastructure BSS 13 Mesh STA 13 STA 9
STA 14 STA 15 Mesh STA 11 Mesh Portal infrastructure STA 10 Non-802.11 BSS 17 Mesh LAN STA 21 STA 22 STA 12
STA 17 STA 8 Mesh mesh AP BSS 2 Portal Mesh Gate
DS
Mesh Mesh Gate Gate Mesh Mesh Mesh STA 1 STA 2 STA 5 Mesh Mesh STA 16 Mesh Mesh Mesh mesh STA 3 STA 4 STA 6 STA 7 BSS 1
F Example MBSS containing mesh STAs, mesh gates, APs, and portals
Submission page 5 Guido R. Hiertz, Philips et al. March 2010 doc.: IEEE 802.11-yy/xxxxr0
Instruction to the editor: Replace all occurences of the term “Portal Announcement” with “Gate Announcement” and replace all occurrences of “PANN” with “GANN.”
Submission page 6 Guido R. Hiertz, Philips et al.