1. Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)
Submission Title: [TG4a-TRD&Selection-Criteria-doc-status-Anaheim ]
Date Submitted: [11 May 2004]
Source: [Philippe Rouzet, TG4a Technical Editor], Company [STMicroelectronics]
Address: [STMicroelectronics, 39 Chemin du Champ des Filles 1228 Geneve Plan-les-Ouates, Switzerland]
Voice: [ ], FAX: [ ],
Re: [IEEE P SG4a CFA]
Abstract: [TG4a is in the process of drafting the Selection Criteria Document for the requirements to be used in the selection process for a PHY Draft Standard for P a and has nearly completed the Technical Requirement Doc ]
Purpose: [Status of the current Selection Criteria Draft (May –Anaheim IEEE session) and plan for the next steps]
Notice: This document has been prepared to assist the IEEE P 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 acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P

2. Status 2 docs available on the reflector (draft form)
SG4a ANAHEIM Technical Requirement Doc (TRD) Selection Criteria Doc (SCD)
Status
2 docs available on the reflector (draft form)
TRD rev 0 (of TG4a): a-TG4a-technical-requirement.doc
SCD rev 0 (of TG4a) : a-tg4a-alt-phy-selection-criteria.doc

3. SG4a ANAHEIM Technical Requirement Doc (TRD)
Status
Officially was discussed till conf call April 28th,
Then postponed to this session
plan is to finish TRD during Anaheim session

4. SG4a ANAHEIM Technical Requirement Doc (TRD)
Main topics under discussion (1/3)
a) omni directional antennas isotropic loss of 3 dBs (Andy April 13th) (perhaps for SCD only)
- discussion from Kai (April 13th):  replace omni-directional with non-directional 
   (+ 4 editorial remarks ==> taken on board by TE)
* b) spectral modification capability (Rick April 13th)   ---> text proposed
   evocate TPC DFS
   - discussion from Kai (April 13th) : not on TRD, let to proponers (2 mails)
   - discussion from Pat (April 13th) : is cognitive radio approach adapted to TG4A ?
   - discussion from Roberto (April 13th) : OK for spectral modification as proposed but as one possible example
   - discussion from Kai  (April 14th) : current TRD is sufficient
   - discussion from Rick (April 14th: more required on regulation item, referring to FCC NPRM ET Docket
   - discussion from Mat (April 14th: FCC does not propose to add more constraints thus no needs to bring more in the TRD 
   - discussion from Rick on Interference Noise Temperature (April 14th)

5. SG4a ANAHEIM Technical Requirement Doc (TRD)
Main topics under discussion (2/3) 
 * c) need to accept cases where there are TX only devices (Dan April 14th) --> thus reject cognitive radio approach
  - discussion from Bernd (April 14th): is TX only compliant with the PAR (id est with 15.4 MAC protocol?) 
 * d) clarification required on : effective data rate 1kbps normally and 1Mbps exceptional  (Dani April 14th) (concern about the capability to use process gain techniques, while keeping a aggregation capability of 1Mbps at a concentrator level).
  - discussion from Stefan (April 14th). Add clarification to the TRD : (implicitely stated: data rate ave to be defined at MAC PHY I/f) ==>TE comment : agreed, will be put in TRD. Also needs for clarifications (process versus coding gain,link budget analysis required to compare signal energy (due to potentially different bandwidth or example). 
   - discussion on effective data rate (continued) from Dani (April 14th) with precisions on Multiple Acess approaches (TDMA, CDMA, Freqency or Time Hopping) and impact on the process gain 

6. SG4a ANAHEIM Technical Requirement Doc (TRD)
Main topics under discussion (3/3) 
  * e) casual low probability of detection (LPD)  -Cognitive radio concept- (Rick Monday, 19 April) ---> text proposed
     - discussion from Berndt LPD must be optional  (April 19th)  - agree by Rick
  *  f) Scalability/flexibility to comply with low end AND high end applications  (Rick April 14th)
     - discussion on that this criteria is critical, but very challenging . necessity to solve this issue to get a successful std (Pat April 14th)

7. SG4a Anaheim Selection criteria doc (SCD) 1/4
First session dealing with SCD started March 17th.
The group agreed to start using the structure of 15.3a SCD (03031r9P802-15_TG3a-PHY-Selection-Criteria.doc)
Note: in the next slides ref. to the SCD doc. are as follow : [5.6.2]

8. SG4a Anaheim Selection criteria doc 2/4
Status
Template prepared and distributed during Orlando’s session.
Gone through the whole content:
currently no big deviation seen as to the structure,
but obviously many adaptations to SG4a to be made)
TG4a group agrees that the document must be lighter:
(e.g. refer to existing 15.3a ref. docs for list of interferers/victims)

9. SG4a Anaheim Selection criteria doc 3/4
Actions
Technical Editor has worked on the generic parts of the doc and provided draft SCD rev 0 (worked till )
Link established with the channel model group on:
Interference item: do we take into account generic UWB interferer? [ ]
Link budget (e.g. table) [5.6.2]
Antenna pattern to be used for the channel model (currently isotropic antenna in the SCD) [5.6.2]

10. SG4a Anaheim Selection criteria doc 4/4
Main items selected for discussions after Orlando (reflector and next conf call):
Packet error rate (consider applications and 15.4 frame format)
[5.5.1]
Elaborate on scalability / Cognitive Radio (accuracy, capacity, data rate versus range) [3.4]
Work on TX only capability. Is it desirable (appli- req.), compatible with the PAR (no significant deviations from the current 15.4 MAC) ?
Work on data rate [ ]: suggested to consider 1Kb/s for RFD devices and up to 1 Mb/s for FFD [5.9]
Structure of the PHY header [ ] (can we start as early as now?)