Re: [802.21] [Mipshop] Re: Architectural Considerations for Handover InformationServices (was: Re: CARD Discussion Query Discussion)
On 10/20/2005 5:00 AM, Hong-Yon Lach wrote:
> Apparently, we still have very different ideas in mind when we talk about IS
> concerning what it is. A lot of discussions so far concerns how it should be
> supported. Peretz, I think you pointed out the consequence that we can only
> disagree about the assumption of IS.
We are not agreeing on its dynamic nature. The rest we do.
>
> How IS is to be used and should be supported depends on what information IS
> is dealing with. If we do not have consensus on the nature/type/purpose of
> information to be coped with in IS, I don't see how 802.21 can produce a
> requirement on IS and how MIPSHOP knows what it is doing for IS.
IS is dealing with all the relevant info that can assist the HO decision. To
assume that in a middle of a few msec hanodoff the IS DB can be queried for
pertinent HO info. and exchange all of that over L3 is a very loaded assumption,
as it assumes that the IS DB will be updated at such resolutions and its info be
relevant to a a few msec process.
Your bleak statement is not so black and white. IS info is relevant and can be
very well defined but it is not dynamic in nature.
>
> Cheers,
> Hong-Yon
>
>
>
>>From: Peretz Feder <pfeder@LUCENT.COM>
>>Organization: Lucent Technologies
>>Reply-To: Peretz Feder <pfeder@LUCENT.COM>
>>Date: Thu, 20 Oct 2005 01:03:18 -0400
>>To: <STDS-802-21@LISTSERV.IEEE.ORG>
>>Subject: Re: [802.21] [Mipshop] Re: Architectural Considerations for Handover
>>InformationServices (was: Re: CARD Discussion Query Discussion)
>>
>>On 10/18/2005 6:11 PM, Qiaobing Xie wrote:
>>
>>>Yoshihiro Ohba wrote:
>>>...
>>>
>>>
>>>>- In reality, 3GPP2 has XML-based method (e.g., XCAP) in its
>>>>dependency list.
>>>
>>>
>>>If I remember it right XCAP/XML is used there for maintaining the
>>>address book/buddy list that sort of things. I can imagine that sort of
>>>events only happen at most no more than a few times a day for any given
>>>user and probably only happen when the user is NOT in a call. In
>>>contrast, IS query/response likely will be part of the h/o call flow...
>>
>>You are assuming IS is a dynamic information that can influence Handover per
>>the
>>IS query response. Many .21 members do not agree with this position. IS should
>>be treated as static information that is provided to the HO decision entity in
>>advance.
>>
>>
>>>regards,
>>>-Qiaobing
>>>
>>>
>>>
>>>>Yoshihiro Ohba
>>>>
>>>>
>>>>
>>>
>
>