FW: Active and Deep Sleep [per My action item]

I feel that this power management thing is quite technology specific. I don't think we could at here mandata a unique way of doing the power mangement in .21. Some of the thing we discussed here may not apply in another technology. And, it should be left to the implementator to carry out any power management optimization based on the specific technology. .21 is not defining some new MAC or PHY (if my understanding of the PAR is correct), and is media independent. Specifying how to achieve power management or defining what to do (like off the internal clock) sounds too much for the .21.

Therefore, the power management requirement should be treated as an evaluation criteria, and should not be over-specified. Maybe some general sentence like "the solution should consider and utilize power management schemes of each interface when applicable" would be enough for the requirement.

cheers

Cheng Hong

-----Original Message-----
From: owner-stds-802-21@LISTSERV.IEEE.ORG [mailto:owner-stds-802-21@LISTSERV.IEEE.ORG] On Behalf Of NJEDJOU Eric RD-RESA-REN
Sent: Wednesday, August 25, 2004 4:13 PM
To: STDS-802-21@LISTSERV.IEEE.ORG
Subject: Active and Deep Sleep [per My action item]

Yogesh,

Are we sure sticking to the 802.11 model is a good thing in the context of .21 where we are defining a service involving several technologies?

GPRS/UMTS as a matter of fact has a very different aproach to STA operational mode. CHeck Alan CArlton presentation in Garden Grove

Eric

-----Message d'origine-----
De : owner-stds-802-21@listserv.ieee.org [mailto:owner-stds-802-21@listserv.ieee.org] De la part de Bhatt Yogesh-E42614
Envoyé : mardi 24 août 2004 23:47
À : 'Gupta, Vivek G'; 'STDS-802-21@LISTSERV.IEEE.ORG'
Cc : Ajay Rajkumar; Michael G. Williams
Objet : Active and Deep Sleep [per My action item]
Importance : Haute

Vivek,

3.7 Power management

Wherever applicable the standard shall select network scanning opportunities to coincide with scheduled wake times to minimize the expended power by switching between the power save and active modes of operations for the wireless media employed.

Power Save Mode: The state in which a STA's transceiver is off in order to conserve power used during the active mode.

Precisely,

    Transceiver: OFF
    Internal Clocks: INACTIVE (except one low frequency clock)

    Peripherals: OFF

    Network Sync: OFF

Active Mode: The state in which a STA's transceiver is on in order to perform typical operations needed for operation within a wireless system.

Precisely,

    Transceiver: ON
    Internal Clocks: ACTIVE

    Peripherals: ON

    Network Sync: ON

BR,

Yogesh Bhatt

Global Standards-Personal Communications Sector

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