Re: [STDS-802-16] [16n][DC] Propose to use coordinator for DC without infrastructure station

["Zeira, Eldad" <Eldad.Zeira@INTERDIGITAL.COM>]

Hi Ahiguang, All

 

Thank you for starting the discussion. Your description looks like a good start for discussion, we should just bear in mind that 802.16n is an amendment, not a new air interface. If this coordinator is based on the BS or ABS then all the baseline functionality is still there and I don’t see the benefit of removing it.

So here's how I would like to think about it in general:

1) Lack of infrastructure is detected

2) HR-MS discover each other (or use information obtained before) and "elect" a "coordinator"

3) the elected HR-MS must be able to to act as a coordinator. To me it means that it has the capability to act as an HR-BS with reduced capability (e.g. fewer subscribers).

 

What do you think?

 

Best Regards,

 

Eldad

Office   +1 631 622 4134

Mobile +1 631 428 4052

Based in NY area

 

 

-----Original Message-----
From: Wang Haiguang [mailto:hwang@I2R.A-STAR.EDU.SG]
Sent: Thursday, April 28, 2011 3:50 AM
To: STDS-802-16@LISTSERV.IEEE.ORG
Subject: [STDS-802-16] [16n][DC] Propose to use coordinator for DC without infrastructure station

 

Dear all,

 

As we have discussed in the last tel-conference, for the

DC use case 3) two HR-MSs communicate when there is no

infrastructure station nearby. Since the existing 802.16

network depends on a central network controller, for example,

a BS or RS, a station with similar function is required to

perform the control function if we do not want to change

the standard significantly.

 

An easier way is to turn an HR-MS to HR-BS. However,

there could be some features that are unnecessary, for example,

the handover of HR-MS, and also, we might need to let the HR-MS

to aware that the "BS" is not a normal BS. Therefore, to define

a central controller that is slightly different from the BS might

be necessary. It may simplify the work need to enable

DC when there is no infrastructure stations.

 

Based on the above consideration, we propose to define a station

named as coordinator. It performs like a BS except the handover

functionality. Some new functionality can also be added if necessary.

 

Previously we have presented a proposal regarding the discovery of

HR-MS to each other and use the information for coordinator selection.

 

Above is my basic consideration of the coordinator. I would like to

know the comments from the groups regarding the solution.

 

Regards.

 

Haiguang