IEEE C802.16maint-08/339
Project
IEEE 802.16 Broadband Wireless Access Working Group <http://ieee802.org/16>
Title
Clarification to Cell Type in 802.16REV2
Date
Submitted
2008-10-27
E-mail:
Source(s)
kamran.etemad@intel.com
Kamran Etemad
Muthaiah Venkatachalam
Hassan Yaghoobi
Re:
P802.16 Revision 2
Abstract
MBS definitions and procedures in the REV2 D6 draft needs some correction.
Purpose
Adoption toward 802.16 Revision 2
Notice
Release
Patent
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Clarification to Cell Type in 802.16REV2
Kamran Etemad, Muthaiah Venkatachalam, Hassan Yaghoobi
Intel Corporation
Introduction
Cell type is a feature defined in 802.16REV2 which the MS should consider in its cell selection. However the
details of how such cell type should be used are left to implementation.
Given the need to support femtocells in early deployment of 802.16REV2 based networks, and operators’
requirements for femtocells with closed subscriber groups (CSG), one needs to identify such femtocell BS’s to
MS’s to avoid undesired access and handover to such BS’s from users outside CSG.
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IEEE C802.16maint-08/339
Proposed Solution
This proposal suggests the use of existing Cell Type to provide basis support for restricted access to private and
semi-private femtocell BS’s.
Proposed Text Modification
[In table 567modify Cell Type TLV as follows:]
Replace the following row in Table 567:
With the following row:
Name
Cell Type TLV
Type
(1 byte)
57
Length
Value (Variable Length)
PHY Scope
1
Cell type TLV may be used by the MS in the network
entry/re-entry and handoff decisions.
Cell Type is encoded as follows:
2 MSBs of cell type: Indicates privacy level of the BS
a) if value = 0, it is a Private BS to which only
designated MS’s can access,
b) if value = 1, it is a Semi-Private BS to which a
non-designated MS shall not access unless there
is no other BS available.
c) If value = 2, it is a public BS accessible by
anyone.
4 LSBs of cell type: Indicates actual size of BS
a) if value = 0, it is a femto BS
b) if value = 1, it is a pico BS
c) if value = 2, it is a micro BS
d) if value = 3, it is a relay BS
e) if value = 4, it is a micro BS
f) if value >= 5, it is a implementation dependent
Other bits of the cell Type are reserved.
All
2