Re: [MEXT] Well-known problem with authentication/etc. in wirelessnetworks

[<[e-mail]>]

Hi Julien,

On 8/26/11 3:00 PM, "ext Julien Laganier" <[e-mail]> wrote:

>Hi Raj,
>
>On Fri, Aug 26, 2011 at 12:01 PM,  <[e-mail]> wrote:
>>
>> Hi Charlie,
>>
>> On 8/26/11 1:38 PM, "ext Charles E. Perkins" <[e-mail]>
>>wrote:
>>>
>>>>> Thus I am still not sure what the problem is.
>>>
>>>
>>>The problem is that they can't do very effective handovers.
>>>Worse, they are designing _per-application_ handover systems.
>>>This is wrong by most reasonable engineering standards,
>>>regardless on the positive effect it might have for
>>>standards junkies and permanent employment for engineers.
>>
>> Effective handovers between what networks? Handovers within the scope of
>> an HSPA or LTE access for example work fine.
>> If you are referring to handovers between 3G accesses and wifi (non-3GPP
>> access) then yes.
>> But the handover performance in such a scenario is hampered by other
>> factors such as latency in connectivity and authentication etc.
>
>In the latter (handover between 3GPP and non-3GPP), given that the
>source and target system are accessed by different radio systems, I do
>not see handover performance has a factor hampering the usability or
>desirability of the inter-system handover scheme in use.

You mean the impact (in terms of lower performance) of handovers across
3GPP and non-3GPP handovers does not really matter because those
applications that rely on high performing handovers will anyway not rely
on such?
But you could make a case that we could see applications (eg. Skype) that
would benefit from lower latency handovers across the different radio
systems.

-Raj

>
>--julien