Re: stds-80220-requirements: Antenna Diversity Requirement, 4.1.13
Yuza,
I agree with your comments. The requirements document should not
mandate antenna diversity at the user terminal.
Section 4.1.13 - Antenna Diversity(Rev.7)
Proposed New text
N/A(Delete section)
To reiterate the past arguments:
Diversity at the user terminal is a cost issue that should be
open for manufacturers to pursue or not as the application and
market permits.
Mike
On Wed, Sep 03, 2003 at 10:03:01AM +0900, YUZA Masaaki wrote:
>
> yuza@NEC-i
>
> I fully agree with Mr Shigeru Kimura's comment on August 8th,
> with same rationale.
>
> It is enough to require of antenna diversity in section 4.1.13
> Support for Multi Antenna Capabilities.
>
>
> Section 4.1.13 - Antenna Diversity(Rev.7)
>
> Proposed New text
> N/A(Delete section)
>
>
> Shigeru's comment--------
>
> Section 4.1.12 - Antenna Diversity
>
> Current text
>
> At a minimum, both the Base Station and the Mobile Terminal shall
> provide two element diversity. Diversity may be an integral part of
> an advanced antenna solution.
> Proposed New text
> N/A(Delete section)
>
> Rationale
>
> Support for multiple antenna capability is described section 4.1.11.
> Section 4.1.12 defines a minimum antenna number for
> Base Station and Mobile Terminal.
> There is a contradiction between 4.1.11 and 4.1.12.
> Only section 4.1.11 description is enough for multiple antenna
> capability I
> think.
> And the antenna number of Mobile Terminal should not be defined in the
> Requirements Document.
> The important thing is the system performance with cost.
>
>
>
> ********************************
> YUZA Masaaki
> NEC infrontia Corp.
> E-mail:yuzam@pb.jp.nec.com
> tel:+81-44-820-4682(personal)
> tel:+81-44-820-4545
> fax:+81-44-820-4555
> ********************************
>
> ----- Original Message -----
> From: "shigeru kimura" <shigeru_kimura@csg.kyocera.co.jp>
> To: "802-20 IEEE requirements list" <stds-80220-requirements@ieee.org>
> Cc: <Shigeru_Kimura@csg.kyocera.co.jp>
> Sent: Friday, August 08, 2003 12:22 PM
> Subject: stds-80220-requirements: Antenna Diversity Requirement, 4.1.12
>
>
>
> Dear ALL
>
> This is Shigeru Kimura.
>
>
> I want to propose to remove the section 4.1.12 of Rev 5.
>
>
>
>
>
> Section 4.1.12 - Antenna Diversity
>
>
> Current text
>
> At a minimum, both the Base Station and the Mobile Terminal shall
> provide two element diversity. Diversity may be an integral part of
> an advanced antenna solution.
> Proposed New text
> N/A(Delete section)
>
>
> Rationale
>
> Support for multiple antenna capability is described section 4.1.11.
> Section 4.1.12 defines a minimum antenna number for
> Base Station and Mobile Terminal.
> There is a contradiction between 4.1.11 and 4.1.12.
> Only section 4.1.11 description is enough for multiple antenna
> capability I
> think.
> And the antenna number of Mobile Terminal should not be defined in the
> Requirements Document.
> The important thing is the system performance with cost.
>
> Thank you.
>
> Kimura
>
>